UKCA - User contributions [en]

Participants

2022-11-15T12:15:27Z

Alex: /* UKCA Science Management Group */

==UKCA Science Management Group==

* Alexander Archibald (Chair of SMG; Univ. Cambridge & NCAS)
* Anthony Jones (Co-Chair Aerosol WG, Met Office)
* Luke Abraham (Co-Chair Code Management WG, NCAS)
* Alan Hewitt (Co-Chair Code Management WG, Met Office)
* Gerd Folberth (Co-Chair Chemistry WG, Met Office)
* Paul Griffiths (Co-Chair Model Evaluation WG, NCAS)
* Fiona O’Connor (Co-Chair Configuration WG, Met Office)
* Jane Muclhay (UKESM1 Rep)
* Olaf Morgenstern (External representative, NIWA)

Former members gratefully thanked for their service:
* Adrian Hill (ECMWF)
* Philip Steer (Univ. of Oxford)
* Ken Carslaw (Univ. Of Leeds)
* Colin Johnson (Met Office)
* John Pyle (Univ. Cambridge & NCAS)

==Support==

'''NCAS-CMS UKCA Support Officer'''
* Luke Abraham

'''Met Office'''
* Mohit Dalvi

Participants

2022-11-15T12:14:48Z

Alex: /* UKCA Science Management Group */

==UKCA Science Management Group==

* Alexander Archibald (Chair of SMG; Univ. Cambridge & NCAS)
* Anthony Jones (Co-Chair Aerosol WG, Met Office)
* Luke Abraham (Co-Chair Code Management WG, NCAS)
* Alan Hewitt (Co-Chair Code Management WG, Met Office)
* Gerd Folberth (Co-Chair Chemistry WG, Met Office)
* Paul Griffiths (Co-Chair Chemistry WG, NCAS)
* Fiona O’Connor (Co-Chair Configuration and Evaluation WG, Met Office)
* Jane Muclhay (UKESM1 Rep)
* Olaf Morgenstern (External representative, NIWA)

Former members gratefully thanked for their service:
* Adrian Hill (ECMWF)
* Philip Steer (Univ. of Oxford)
* Ken Carslaw (Univ. Of Leeds)
* Colin Johnson (Met Office)
* John Pyle (Univ. Cambridge & NCAS)

==Support==

'''NCAS-CMS UKCA Support Officer'''
* Luke Abraham

'''Met Office'''
* Mohit Dalvi

About UKCA

2022-01-07T11:04:18Z

Alex: /* What is UKCA? */

===What is UKCA?===

UKCA is an underpinning research programme part of the NERC-Met Office Joint Weather and Climate Research Programme (http://www.jwcrp.org.uk/under/index.asp).

UKCA provides the capability to simulate aerosol and chemical processes in the Met Office Unified Model and is a core component of the UK Earth System model.

UKCA is an international project with partners in:
* Met Office
* National Centre for Atmospheric Science (NCAS)
* (NIWA)

===Why do we need UKCA?===

* Scope of current chemistry and aerosol models is insufficient for Earth System modelling.
* NCAS expertise is required to improve climate models.
* To encourage wider community research in this area.

===Objective of UKCA===

To build and scientifically evaluate a new UK community atmospheric chemistry-aerosol global model suitable for a range of topics in climate and environmental change research.

===Science targets in UKCA===

* Coupled tropospheric-stratospheric chemistry–climate model
* Coupled aerosol-chemistry model
* Improvements to Aerosol modelling
* Internally mixed aerosol
* New aerosol species

===More information===
[[Media:UKCA_Aerosols_2013_UM_tutorial.pdf]] - an overview of aerosol modelling in the UM in general and UKCA in particular. Presented at UM User tutorial 2013. Nick Savage

Participants

2022-01-07T10:56:44Z

Alex:

Participants

2022-01-07T10:55:19Z

Alex: /* UKCA Science Management Group */

==UKCA Science Management Group==

* Alexander Archibald (Chair of SMG; Univ. Cambridge & NCAS)
* Adrian Hill (Co-Chair Aerosol WG, Met Office)
* Luke Abraham (Co-Chair Code Management WG, NCAS)
* Alan Hewitt (Co-Chair Code Management WG, Met Office)
* Gerd Folberth (Co-Chair Chemistry WG, Met Office)
* Paul Griffiths (Co-Chair Chemistry WG, NCAS)
* Fiona O’Connor (Co-Chair Configuration and Evaluation WG, Met Office)
* Jane Muclhay (UKESM1 Rep)
* Olaf Morgenstern (External representative, NIWA)

Former members gratefully thanked for their service:
* Philip Steer (Univ. of Oxford)
* Ken Carslaw (Univ. Of Leeds)
* Colin Johnson (Met Office)
* John Pyle (Univ. Cambridge & NCAS)

==Support==

'''NCAS-CMS UKCA Support Officer'''
* Luke Abraham

==University of Cambridge==

'''Chemistry'''
* Luke Abraham
* Glenn Carver
* Peter Braesicke
* Paul Telford
* Genevieve Millard
* Rene Hommel
* John Pyle
* Alex Archibald

==University of Leeds==

'''Aerosols'''
* Ken Carslaw
* Graham Mann
* Maria Grazia Frontoso
* Matt Woodhouse
* Anja Schmidt
* Dave Ridley
* Francois Benduhn
* Helen Macintyre
* Jo Browse
* Kathryn Emmerson
* Tom Breider
'''Chemistry'''
* Martyn Chipperfield
* Sandip Dhomse
* Ryan Hossaini

==Met Office==

* Colin Johnson
* Mohit Dalvi
'''Chemistry'''
* Fiona O’Connor
* Gerd Folberth
* Bill Collins
'''Aerosols'''
* Nicolas Bellouin
* Jim Haywood
* Jamie Rae
'''L60 Dynamics'''
* Andrew Bushell
* Neal Butchart
* Steven Hardiman
'''Air Quality'''
* Nick Savage

==University of Oxford==

'''Aerosols & Clouds'''
* Rosalind West
* Zak Kipling
* Ed Gryspeerdt
* Till Wagner
* Philip Stier
'''L60 Dynamics'''
* Lesley Gray
* Scott Osprey

==National Institute of Water and Atmospheric Research, Lauder, New Zealand==

'''Stratospheric and whole-atmosphere aspects'''
* Olaf Morgenstern

==University of Reading==

Participants

2022-01-07T10:54:51Z

Alex: /* UKCA Science Management Group */

==UKCA Science Management Group==

* Alexander Archibald (Chair; Univ. Cambridge & NCAS)
* Adrian Hill (Co-Chair Aerosol WG, Met Office)
* Luke Abraham (Co-Chair Code Management WG, NCAS)
* Alan Hewitt (Co-Chair Code Management WG, Met Office)
* Gerd Folberth (Co-Chair Chemistry WG, Met Office)
* Paul Griffiths (Co-Chair Chemistry WG, NCAS)
* Fiona O’Connor (Co-Chair Configuration and Evaluation WG, Met Office)
* Jane Muclhay (UKESM1 Rep)
* Olaf Morgenstern (External representative, NIWA)

Former members gratefully thanked for their service:
* Philip Steer (Univ. of Oxford)
* Ken Carslaw (Univ. Of Leeds)
* Colin Johnson (Met Office)
* John Pyle (Univ. Cambridge & NCAS)

==Support==

'''NCAS-CMS UKCA Support Officer'''
* Luke Abraham

==University of Cambridge==

'''Chemistry'''
* Luke Abraham
* Glenn Carver
* Peter Braesicke
* Paul Telford
* Genevieve Millard
* Rene Hommel
* John Pyle
* Alex Archibald

==University of Leeds==

'''Aerosols'''
* Ken Carslaw
* Graham Mann
* Maria Grazia Frontoso
* Matt Woodhouse
* Anja Schmidt
* Dave Ridley
* Francois Benduhn
* Helen Macintyre
* Jo Browse
* Kathryn Emmerson
* Tom Breider
'''Chemistry'''
* Martyn Chipperfield
* Sandip Dhomse
* Ryan Hossaini

==Met Office==

* Colin Johnson
* Mohit Dalvi
'''Chemistry'''
* Fiona O’Connor
* Gerd Folberth
* Bill Collins
'''Aerosols'''
* Nicolas Bellouin
* Jim Haywood
* Jamie Rae
'''L60 Dynamics'''
* Andrew Bushell
* Neal Butchart
* Steven Hardiman
'''Air Quality'''
* Nick Savage

==University of Oxford==

'''Aerosols & Clouds'''
* Rosalind West
* Zak Kipling
* Ed Gryspeerdt
* Till Wagner
* Philip Stier
'''L60 Dynamics'''
* Lesley Gray
* Scott Osprey

==National Institute of Water and Atmospheric Research, Lauder, New Zealand==

'''Stratospheric and whole-atmosphere aspects'''
* Olaf Morgenstern

==University of Reading==

Minutes of the code management group meeting 2018-11-12

2018-11-09T15:25:01Z

Alex: /* UKCA Release Job (LA/MD) */

[[Code management group minutes]]

==Teleconference Details==

'''Monday 12th November 2018, 10am - 11.30am GMT'''

* '''UK Landline:''' +44 (0)1223 761376 (x61376 from an internal University of Cambridge phone)
* '''Participant PIN: 232764'''

==Present==

'''Met Office:'''

'''Cambridge:'''

'''Leeds:'''

'''Reading:'''

'''Lancaster:'''

'''Edinburgh:'''

'''UEA:'''

'''NIWA:'''

'''CSIRO:'''

'''Apologies:'''

==Actions from this meeting ==

=== One-off actions ===

=== Standing actions ===

# (ongoing - standing item) '''CMG''' to monitor list of bugs and circulate between group for owners.
# (ongoing - standing item) At '''CMG''' future meetings there should be included an appendix listing the open bugs. If a ticket is included it is not an open bug (as the owner of ticket is person doing lodging).
# (ongoing - standing item) '''ALL''' with access to keep monitoring ukca_bugs email list.
# (ongoing - standing item) '''ALL''' to think about if code changes will change KGO and let systems team know in good time, and remember to include the UKCA & SC0138 keywords to all UKCA tickets. This should be a standard part of our working practice. ''Note'' also the required keywords.
# (ongoing - standing item) '''ALL''' to note, review, and remove obsolete/redundant code'''
# (ongoing - standing item) '''ALL''' closed ticket owners to produce a summary of their change for the UKCA newsletter
# (ongoing - standing item) '''Code Owner''' to produce draft newsletter for '''CMG''' to approve.

== Minutes ==

=== Actions from the Last Meeting (LA) ===

[[Minutes of the code management group meeting 2018-09-05]]

==== One-off actions ====

# (ongoing) MY to check GLOMAP-mode code and report any missing bug fixes on the [[Bugfixes_(new_approach)|bugfixes]] page.
# (ongoing) LA to liaise with MY, and to chase MY and GM as to when this would be done.
# (ongoing) LA to migrate PUMA UM tickets to MOSRS - see [[Minutes_of_the_code_management_group_meeting_2017-07-14#UKCA_Tickets_from_PUMA_UKCA_trac_pages_.28LA.29|table below]].
# (ongoing) LA to open tickets for all changes that still require a ticket.
# (ongoing) FOC to recommend at next Exec meeting a policy of allowing only CMG to (certify and) distribute any UKCA configurations for science purpose.
# (ongoing) MD to collate all UKCA parameters into <code>ukca_constants</code> in advance of removing duplicates already available in the UM and circulate details.
# (ongoing) LA to put <code>C_SPECIES</code> definitions in the ''Redundant Code'' table (short-term), and switch to use <code>M_SPECIES</code> instead. Talk with JH about AQUM tests and requirements. Note that there will be problems with exoplanets and >100km top configs where M_air not constant.
# (new) AJH to open ticket and assign to himself regarding loops over imode+n and imode-n.
# (ongoing) MD/LA to talk about releases offline, and set up free-running and nudged GA7.1+StratTrop TS2000ish timeslice, with instructions to make it transient.
# (new) NLA/MD make script for perpetual nudging (symbolic linking to existing files).
# (new) NLA to port suite to ARCHER.
# (ongoing) LA to create Wiki page on UKCA website for users to add details of configurations and input files.
# (ongoing) '''ALL''' to review output from vn11.0 release candidate(s).
# (new) MD to provide vn11.0 release candidate output again.
# (ongoing) FOC to circulate doodle poll for further emissions discussion to CMG for all to fill-in. That meeting to report to CMG
# (ongoing) MR to discuss with KP implications for GLOMAP in regards to a separate UKCA repository
# (new) NLA to contact CEJ (cc JM) about trace-gas convective plume scavenging and how this will be impacted (or impact) the repository work
# (ongoing) LA to contact FOC, AH, MR, KP, ATA, Ken Carslaw, Philip Stier regarding taking the proposal for a separate code repository forward.
# (ongoing) FOC to see what action can be taken from MASS, then put out an email for POCs from institutes.
# (new) FOC/AH/MD to develop a strategy on MASS for discussion at next CMG
# (new) FOC to contact Garry Hayman to highlight bug #35.
# (new) JM to take ownership of redundant code item #6 (Wet oxidation of SO2 in GLOMAP).
# (new) LN to document redundant code item #9 (Deprecated UKCA netcdf attribute options).
# (new) JM to do a catch-call ticket for GMED
# (new) LN to l_fix_nh4no3_equilibrium in rose-stem and jobs and remove if necessary.
# (new) NLA to do doodle poll for 90 minute meeting in first 2 weeks in November.

==== Standing actions ====

# (ongoing - standing item) '''CMG''' to monitor list of bugs and circulate between group for owners.
# (ongoing - standing item) At '''CMG''' future meetings there should be included an appendix listing the open bugs. If a ticket is included it is not an open bug (as the owner of ticket is person doing lodging).
# (ongoing - standing item) '''ALL''' with access to keep monitoring ukca_bugs email list.
# (ongoing - standing item) '''ALL''' to think about if code changes will change KGO and let systems team know in good time, and remember to include the UKCA & SC0138 keywords to all UKCA tickets. This should be a standard part of our working practice. ''Note'' also the required keywords.
# (ongoing - standing item) '''ALL''' to note, review, and remove obsolete/redundant code'''
# (ongoing - standing item) '''ALL''' closed ticket owners to produce a summary of their change for the UKCA newsletter
# (ongoing - standing item) '''Code Owner''' to produce draft newsletter for '''CMG''' to approve.

=== Bugs/Bugfixes (LA) ===

==== [[Bugfixes_(new_approach)|Open Bugs]] ====
{| class="wikitable" border = "1px"
!style="text-align:top;rowspan:2";|#
!style="text-align:top;rowspan:2";|Description
!style="text-align:top;rowspan:2";|Ticket
!style="text-align:top;rowspan=2";|Owner
!style="text-align:top;rowspan=2";|Status/ Updates
!style="text-align:top;rowspan=2";|Comments from previous meetings
!style="text-align:top;rowspan=2";|Comments from this meeting
|-
| 35 || Error in labelling: Surface resistance <--> stomatal resistance ? || [https://code.metoffice.gov.uk/trac/um/ticket/1409 UM:#1409] || '''Fiona O'Connor''' || || Leave open. Garry Hayman started work in offline JULES. Still ongoing. See action. ||
|-
| 87 || Possible issues with YSTORE in UKCA_CHEMISTRY_CTL. || [https://code.metoffice.gov.uk/trac/um/ticket/3245 UM:#3245] || '''Colin Johnson / Luke Abraham''' || || Leave open. NLA to have another look. MS may have changed things with OMP changes. ||
|-
| 96 || Output drydiam diagnostics where l_ukca_arg_act but not l_ukca_radaer || [https://code.metoffice.gov.uk/trac/um/ticket/3962 UM:#3962] || '''Alan J Hewitt''' || The beginnings of a solution are found in [https://code.metoffice.gov.uk/trac/um/log/main/branches/dev/alanjhewitt/vn11.0_ukca_drydiam_activate_wo_radaer vn11.0_ukca_drydiam_activate_wo_radaer]. || Leave open. AJH to take ownership - may be affected by reorganisation. Leave open. ||
|-
| 100 || Negative concentrations of pvol_wat() || [https://code.metoffice.gov.uk/trac/um/ticket/4383 UM:#4383] || '''Alan J. Hewitt''' || Work ongoing to lodge at vn11.3 || ||
|-
| 101 || Errors in reaction rates and diagnostics || [https://code.metoffice.gov.uk/trac/um/ticket/4466 UM:#4466] || '''Luke Abraham / Scott Archer-Nicolls''' || || ||
|-
|}

=== [[Redundant code|Redundant Code]] (LA) ===

==== Code for deletion ====

'''PLEASE REMEMBER TO EDIT THE ORIGINAL [[Redundant code|REDUNDANT CODE]] TABLE AND NOT THIS PAGE'''

{| class="wikitable" border = "1px"
!style="text-align:top;|#
!style="text-align:top;|Description
!style="text-align:top;|Ticket
!style="text-align:top;|Remarks
!style="text-align:top;|Status
!style="text-align:top;|Timeframe
!style="text-align:top;|Owner
!style="text-align:top;|Comments from previous meetings
!style="text-align:top;|Comments from this meeting
|-
| 2 || Old dry deposition scheme || [https://code.metoffice.gov.uk/trac/um/ticket/2356 UM:#2356] || None || '''PROPOSED''' || Medium-term || Nick Savage || ||
|-
| 4 || ukca_strat_update.F90 - relax_ozone || [https://code.metoffice.gov.uk/trac/um/ticket/1505 UM:#1505] || None || '''PROPOSED''' || Medium-term || Luke Abraham || ||
|-
| 5 || Backward Euler Standard Tropospheric Chemistry || [https://code.metoffice.gov.uk/trac/um/ticket/1507 UM:#1507] || None || '''PROPOSED''' || Medium-term || Fiona O'Connor || ||
|-
| 6 || Wet oxidation of SO2 in GLOMAP || None || None || '''PROPOSED''' || Medium-term || Colin Johnson || JM to look at this re: UKESM1 c.f. offline GLOMAP. JM to take ownership. ||
|-
| 7 || Updraft velocity - l_conv_tke || [https://code.metoffice.gov.uk/trac/um/ticket/3668 UM:#3668] || Proposed in December 2017. Approval being sought for GA series (likely GA8). || '''PROPOSED''' || Medium-term || Alan J Hewitt / Ian Boutle|| ||
|-
| 8 || All backward Euler chemistry schemes || None || Note that this is only for the “hard-coded” BE schemes. Quite a lot of work would be involved, but good as a longer-term aim. ''Note'' that problems for AQUM would need to be addressed first. || '''PROPOSED''' || Long-term || Luke Abraham || ||
|-
| 9 || Deprecated UKCA netcdf attribute options || [https://code.metoffice.gov.uk/trac/um/ticket/2513 UM:#2513] || 'emission_type', string type attributes no longer recommeneded. Need some time for most new code to adopt these. Still used in AQUM files. || '''DEPRECATED''' || Medium-term || Nick Savage || AQUM are addressing the files. Have gone from operational jobs, have ticket to remove from rose-stem. LN to document. ||
|-
| 10 || ASAD families chemistry || None || Families chemistry has not been used for many years (since at least UM6.1. It is likely that it no longer works if turned on, and it complicates the code making other developments harder || '''DEPRECATED''' || Short-term || Luke Abraham || ||
|-
| 11 || Dry deposition 9 PFT option || None || The 13 PFT option has been adopted for UKESM1. The 9 PFT option is possibly not being used at all. Proposed in June 2018. || '''PROPOSED''' || Long-term || Alan J Hewitt || ||
|-
| 12 || Remove explicit <code>C_SPECIES</code> constants and calculate these from <code>M_SPECIES</code> and the mass of air || None || Will have wide-ranging rose-stem KGO breakages || '''PROPOSED''' || Short-term || Luke Abraham || ||
|-
| 13 || Remove temporary logical l_fix_nacl_density Introduced at [https://code.metoffice.gov.uk/trac/um/ticket/2405 UM:#2405] by Colin Johnson || [https://code.metoffice.gov.uk/trac/um/ticket/3490 UM:#3490] || Requires AMIP testing and a GMED ticket Could be accepted to GA9 || '''PROPOSED''' || Medium-term || '''None''' || See JM GMED action ||
|-
| 14 || Remove temporary logical l_fix_nh4no3_equilibrium Introduced at [https://code.metoffice.gov.uk/trac/um/ticket/646 UM:#646] by Carlos Ordonez || None || Requires AMIP testing and a GMED ticket Could be accepted to GA9 || '''PROPOSED''' || Medium-term || '''None''' || See LN temporary logical action ||
|-
| 15 || Remove temporary logical l_fix_ukca_impscav Introduced at [https://code.metoffice.gov.uk/trac/um/ticket/1421 UM:#1421] || [https://code.metoffice.gov.uk/trac/um/ticket/4145 UM:#4145] || Approval being sought for GA series (likely GA9) [https://code.metoffice.gov.uk/trac/gmed/ticket/402 GMED:#402] || '''PROPOSED''' || Medium-term || Alan J Hewitt || See JM GMED action ||
|-
| 16 || Remove temporary logical l_fix_improve_drydep Introduced at [https://code.metoffice.gov.uk/trac/um/ticket/1250 UM:#1250] || [https://code.metoffice.gov.uk/trac/um/ticket/3997 UM:#3997] || Approval being sought for GA series (likely GA9) [https://code.metoffice.gov.uk/trac/gmed/ticket/393 GMED:#393] || '''PROPOSED''' || Medium-term || Alan J Hewitt || See JM GMED action ||
|-
| 17 || Remove temporary logical l_fix_ukca_h2dd_x Introduced at [https://code.metoffice.gov.uk/trac/um/ticket/4157 UM:#4157] || [https://code.metoffice.gov.uk/trac/um/ticket/4245 UM:#4245] || Approval being sought for GA series (likely GA9) [https://code.metoffice.gov.uk/trac/gmed/ticket/410 GMED:#410] || '''PROPOSED''' || Medium-term || Alan J Hewitt || See JM GMED action ||
|-
| 18 || Remove temporary logical l_fix_neg_pvol_wat Introduced at [https://code.metoffice.gov.uk/trac/um/ticket/4383 UM:#4383] || [https://code.metoffice.gov.uk/trac/um/ticket/4416 UM:#4416] || Approval being sought for GA series (likely GA9) [https://code.metoffice.gov.uk/trac/gmed/ticket/421 GMED:#421] || '''PROPOSED''' || Medium-term || Alan J Hewitt || ||
|-
|}

=== UKCA Release Job (LA/MD) ===

[[Release Job UM11.0]]

See previous comments under [[Minutes_of_the_code_management_group_meeting_2018-09-05#One-off_actions_2|actions from the last meeting.]]

ATA -- I have had a look at the Chemistry evaluation output. In general vn11 looks good to be released. As with other release versions I think it is important that we probably summarise a number of "features" of the model output. For example, the O3 STE is very low. I know Mohit has recently fixed the diagnostic and it would be good if this fix could be added and new output generated to confirm that the STE is so low. The other bits of the budget however look fine. The methane lifetime is a bit too short. But the age of air looks good relative to SF6. etc etc.

=== Targets for vn11.3 (and beyond) (LA) ===

See details of the [https://code.metoffice.gov.uk/trac/um/wiki/DevOwnerGroup 29th October UM Developers and Owner's Group].

'''PLEASE REMEMBER TO:'''
* '''INCLUDE THE KEYWORDS: UKCA & SC0138.'''
* '''ASSIGN THE TICKET AFTER ITS CREATION. NO TICKETS SHOULD BE LEFT AS ''NEW''.'''

==== [https://code.metoffice.gov.uk/trac/um/query?status=approved&status=assigned&status=code_review&status=committed&status=in_progress&status=new&status=sci%2Ftech_review&keywords=~UKCA&keywords=~SC0138&milestone=UM11.3+code+release&group=owner&col=id&col=summary&col=milestone&col=status&col=type&col=component&order=priority Tickets targeting vn11.3] ====

'''UM vn11.3 code review submission deadline is 7th Feb 2019. SOCRATES/JULES/GCOM/CASIM/KGO by 31st Jan 2019.'''

{| class="wikitable" border = "1px"
!style="text-align:top;|#
!style="text-align:top;|Description
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/2689 UM:#2689] || Enable coupling of GLOMAP-MODE Aerosol to FAST-JX photolysis.
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/3127 UM:#3127] || Investigate KGO differences in um_n48_ukca_eg app using GNU on the Cray
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/3292 UM:#3292] || Consolidate constant variables used by UKCA
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/3367 UM:#3367] || Removing transport of peroxy radical tracers in Strattrop (CHeST)
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/3779 UM:#3779] || Improvements to the inline comments in ukca_option_mod
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/3959 UM:#3959] || RO2-Permutation Chemistry
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/3997 UM:#3997] || Retire temporary logical l_fix_improve_drydep
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4001 UM:#4001] || Magic numbers in ukca_setup_chem_mod.F90
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4020 UM:#4020] || Improved calculation of ozone dry deposition to ocean - surface resistance term
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4024 UM:#4024] || Triggering of i_ukca_dms_flux by l_sulpc_so2
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4131 UM:#4131] || Enable use of ASAD Backward-Euler solver with UKCA offline oxidants chemistry
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4145 UM:#4145] || Retire temporary logical l_fix_ukca_impscav
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4201 UM:#4201] || Verify use of ''qsmin'' in UKCA plume scavenging diagnostics
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4221 UM:#4221] || Optimisation of GLOMAP_CLIM
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4231 UM:#4231] || Adding Common Representatives Intermediate (CRI) mechanism
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4245 UM:#4245] || Retire temporary logical l_fix_ukca_h2dd_x
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4288 UM:#4288] || Extend GLOMAP_CLIM rose stem testing to new compilers e.g. ifort & gfortran
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4357 UM:#4357] || Replace glomap_clim_n48.nc in rose-stem/app/um_n48_glomap_clim (& n96)
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4375 UM:#4375] || Implement cache-blocking loop in UKCA to optimise the chemistry solver
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4383 UM:#4383] || Calculation of wts() masswaterkg() mdwat() pvol_wat()
|-
|[https://code.metoffice.gov.uk/trac/um/ticket/4397 UM:#4397] || Rose stem test for i_ukca_chem=54
|-
|}

==== Owner for [https://code.metoffice.gov.uk/trac/um/ticket/4397 4397] ====

Ticket [https://code.metoffice.gov.uk/trac/um/ticket/3606 um:#3606] made fixes to allow the Newton-Raphson Offline Oxidants scheem to work, but there is currently no rose-stem test for this configuration to protect it. Ticket [https://code.metoffice.gov.uk/trac/um/ticket/4397 um:#4397] has been created for this, but currently does not have an owner.

=== AOB/DNM (LA) ===

=== Date of next meeting (LA) ===

Release Job UM11.0

2018-11-09T15:24:39Z

Alex:

==Overview==

{| border="1" style="background-color:white" cellpadding="10"
|-
|| Free-running || XCE/F/S: '''<code>u-ay770</code>''' || Monsoon2: '''<code>u-bb055</code>''' || NEXCS: '''<code>u-bb056</code>''' || ARCHER: '''<code>u-ba915</code>'''
|-
|| Run-time (per model month) || ~1 hour 10 minutes (XCS) || ~1 hour 10 minutes || ~1 hour 10 minutes || ~1 hour 20 minutes
|-
|| Cycling || P1M in PT1H40M (XCS) || P1M in PT1H40M || P1M in PT1H40M This could be changed to take advantage of the longer queues on NEXCS. || P1M in PT1H40M This could be changed to take advantage of the longer queues on ARCHER.
|-
|| Estimated cost || || 168 node-hours/model year || 168 node-hours/model year or 91 kAU/model year equivalent || 91 kAU/model year
|-
|| Decomposition || 18EW x 24NS on 12 nodes (XCS: 36PPN) || 18EW x 24NS on 12 nodes (36PPN) || 18EW x 24NS on 12 nodes (36PPN) || 24EW x 15NS on 15 nodes (24PPN)
|-
|| Storage Requirements (current STASH settings) || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) MASS costs: £2.01 per model year || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) copied to a JASMIN GWS as the model runs || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) copied to the <code>/nerc</code> disk and a JASMIN GWS as the model runs
|-
|}

 __TOC__

= UKCA Release Job - UM11.0 - Free Running =
==UM11.0 GA7.1 + UKCA Strattrop GLOMAP (N96L85) TS2000 ==

----
== Suite -id ==

* Met Office (XCE/F/S): '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/a/y/7/7/0 u-ay770]'''
* Monsoon2: '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/b/0/5/5 u-bb055]'''
* NEXCS: '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/b/0/5/6 u-bb056]'''
* ARCHER: '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/a/9/1/5 u-ba915]'''

'''Remember to always COPY these suites to a new one that you own, rather than checking them out.''' This will prevent you accidentally over-writing the settings in the original suite.

== Base/ inherited configuration ==

''UM11.0 GA7.1 UKCA Strattrop GLOMAP Y2014; TropO3 fixes'' suite '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/a/v/8/1/8 u-av818]''' combined with settings from [https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/a/u/9/1/7 u-au917]

UKCA evaluation suite output for u-au917 can be seen [http://www.ukca.ac.uk/images/a/a5/Ukca_chem_eval_as976_au917_1999-2008.pdf here]

== Branches ==
{| border='1' cellpadding='1'
! Branch name || Description || Metadata change?
|-
|| [https://code.metoffice.gov.uk/trac/um/log/main/branches/dev/lukeabraham/vn11.0_ukca_linox_tweaks branches/dev/lukeabraham/vn11.0_ukca_linox_tweaks] || Uses single NOx production factor for cld-cld and cldgrn flashes || Yes
|-
|| [https://code.metoffice.gov.uk/trac/um/log/main/branches/dev/dev/mohitdalvi/vn11.0_ukca_ageair_and_stashm branches/dev/dev/mohitdalvi/vn11.0_ukca_ageair_and_stashm] || Fixes STASH definition of age-of-air pressure-level diagnostic '''Not required for build (fcm_make_um), only replaces runtime STASHmaster''' (specified in app/um/rose-app.conf=>[file:STASHmaster] section) || Yes
|}

* Suite uses metadata from '''~hadzm/code/vn11.0_ukca_linox_tweaks_meta/rose-meta/um-atmos/HEAD''' (same location on meto-cray and Monsoon2), as specified in ''app/um/rose-app.conf, meta=''

== Initialisation ==

The suite (meteorological, aerochem variables) will initialise from a dump produced at the end of a 20-year spin-up run of the previous GA7.1+Strattrop AMIP run ''u-au917'' 
* XCS-R ''/data/d05/hadzm/dumps/au917a.da20080901_00''
* Monsoon2/NEXCS:''/projects/ukca-admin/inputs/initial/N96eL85/au917a.da20080901_00''
* ARCHER: ''/work/n02/n02/ukca/initial/N96eL85/au917a.da20080901_00''

The path to this is set in the file(s): ''site/meto_cray.rc'', ''site/MONSOON.rc'', or ''site/archer.rc'' as variable '''AINITIAL'''. You can look in the site files for other specific changes.

== Forcing data ==

=== Emissions ===

Emissions for aerosol and chemical species (except biogenic) are prescribed as monthly cyclic climatologies around Year2000 by averaging data for 1995-2004 from the CMIP6 [https://code.metoffice.gov.uk/trac/ancil/wiki/CMIP6/ForcingData/AerosolChemistryEmissions historical] emissions developed for UKESM1. Script used was make_clim_emiss.py.

Biogenic emissions used are those originally [http://www.ukca.ac.uk/wiki/index.php/Emissions_for_ACSIS developed] for the NERC ACSIS project and represent datasets pertaining to 1990s,2000s for different species.

=== Sea surface temperature and sea ice concentrations ===

The SST and Sice values are also prescribed as monthly climatologies for 2000 created by averaging over 1995-2004 the timeseries data [https://code.metoffice.gov.uk/trac/ancil/wiki/CMIP6/ForcingData/SstSeaIce generated] for CMIP6 Atmos-only simulations.

=== GHG and Trace Gas Concentrations ===

* These have been specified as values averaged over 1995-2004 from the historical GHG forcing data [https://code.metoffice.gov.uk/trac/ancil/wiki/CMIP6/ForcingData/GreenhouseGases prepared] for CMIP6.
* This was done by manually averaging data for above years from the files {{{/projects/ancils/cmip6/ancils/any/timeseries_1850-2014/cmip6/global_ghg_cmip6.conf}}} and {{{trgas_rcp_historical.dat}}} respectively for the Radiation GHG inputs and UKCA trace gas specification.

== Critical Model setup / Namelist settings ==

==== SST/ Seaice ====

* Panel: ''um => namelist => Reconfiguration and Ancil control => Configure ancil and dump fields''
* Look for initialisation of items:
stashcode=24 (SST), ancilfilename='$SST_SICE_ANCIL/sst_clim_mon_2000_n96e.anc'
stashcodes=31,32 (sea-ice), ancilfilename='$SST_SICE_ANCIL/sice_clim_mon_2000_n96e.anc'
where:
site/meto_cray.rc: SST_SICE_ANCIL = '/data/d05/hadzm/ancil/n96e/cmip6/sstice/clim_2000'
site/MONSOON.rc: SST_SICE_ANCIL = '/projects/ukca-meto/hadzm/ancil/n96e/cmip6/sstice/clim_2000'
site/archer.rc: SST_SICE_ANCIL = '/work/n02/n02/ukca/ancil/n96e/cmip6/sstice/clim_2000'

==== RUN_Radiation GHG values ====

* Panel: ''Sec 01 02 Radiation => Gas MMRs => Varying Gas MMRs'': Set '''l_climcfg=False''' and then specify these values in the ''Gas MMRs' panel:
{| border='1' cellpadding='2'
|!= Item =||= Value =||= Remarks =
|-
|| c113mmr || 0.0 ||
|-
|| c114mmr || 0.0 ||
|-
|| c11mmr || 0.0 ||
|-
|| c12mmr || 4.3674e-09 ||
|-
|| ch4mmr || 9.799e-04 || ignored, uses conc from UKCA
|-
|| co2_mmr || 5.5815e-04 ||
|-
|| hcfc22mmr || 0.0 ||
|-
|| hfc125mmr || 0.0 ||
|-
|| hfc134ammr || 3.5211e-10 ||
|-
|| n2ommr || 4.7797e-04 || ignored, uses conc from UKCA
|-
|| o2mmr || 0.2314 ||
|}

==== RUN_UKCA settings ====
{| border='1' cellpadding='2'
! Item || Value || Remarks || Item || Value || Remarks
|-
|| biom_aer_ems_scaling || 2.0 || || chem_timestep || 3600 ||
|-
|| dir_strat_aer || '/home/d05/hadzm/job_files/SAD' '/work/n02/n02/ukca/job_files/SAD' (ARCHER) || || fastjx_mode || 1 ||
|-
|| fastjx_numwl || 18 || || fastjx_prescutoff || 20.0 ||
|-
|| file_strat_aer || 'CMIP_1850_2014_average_sad_v3_56_level.asc' || || i_ageair_reset_method || 1 ||
|-
|| i_mode_nzts || 15 || || i_mode_setup || 2 ||
|-
|| i_ukca_chem || 51 || || i_ukca_conserve_method || 2 ||
|-
|| i_ukca_dms_flux || 1 || || i_ukca_hiorder_scheme || 0 ||
|-
|| i_ukca_photol || 3 || || i_ukca_quasinewton_end || 3 ||
|-
|| i_ukca_quasinewton_start || 2 || || i_ukca_scenario || 2 ||
|-
|| i_ukca_solcyc || 0 || || jvscat_file || 'FJX_scat.dat' ||
|-
|| jvspec_dir || '$UMDIR/vn$VN/ctldata/UKCA/fastj' || || jvspec_file || 'FJX_spec_Nov11.dat' ||
|-
|| l_bcoc_bf || .true. || || l_bcoc_bm || .true. ||
|-
|| l_bcoc_ff || .true. || || l_mode_bhn_on || .true. ||
|-
|| l_mode_bln_on || .false. || || l_ukca || .true. ||
|-
|| l_ukca_ageair || .true. || || l_ukca_aie1 || .true. ||
|-
|| l_ukca_aie2 || .true. || || l_ukca_arg_act || .true. ||
|-
|| l_ukca_asad_columns || .false. || || l_ukca_asad_plev || .true. ||
|-
|| l_ukca_chem_aero || .true. || || l_ukca_chem_plev || .true. ||
|-
|| l_ukca_ddep_lev1 || .false. || || l_ukca_h2o_feedback || .true. ||
|-
|| l_ukca_het_psc || .true. || || l_ukca_ibvoc || .false. ||
|-
|| l_ukca_intdd || .true. || || l_ukca_limit_nat || .true. ||
|-
|| l_ukca_linox_scaling || .true. || || l_ukca_mode || .true. ||
|-
|| l_ukca_prescribech4 || .false. || || l_ukca_prim_moc || .true. ||
|-
|| l_ukca_primbcoc || .true. || || l_ukca_primss || .true. ||
|-
|| l_ukca_primsu || .true. || || l_ukca_qch4inter || .false. ||
|-
|| l_ukca_quasinewton || .true. || || l_ukca_radaer || .true. ||
|-
|| l_ukca_radaer_sustrat || .true. || || l_ukca_radch4 || .true. ||
|-
|| l_ukca_radf11 || .false. || || l_ukca_radf113 || .false. ||
|-
|| l_ukca_radf12 || .false. || || l_ukca_radf22 || .false. ||
|-
|| l_ukca_radn2o || .true. || || l_ukca_rado3 || .true. ||
|-
|| l_ukca_sa_clim || .true. || || l_ukca_scale_biom_aer_ems || .true. ||
|-
|| l_ukca_scale_seadms_ems || .false. || || l_ukca_scale_soa_yield || .true. ||
|-
|| l_ukca_set_trace_gases || .true. || || l_ukca_sfix || .false. ||
|-
|| l_ukca_so2ems_expvolc || .false. || || l_ukca_src_in_conservation || .true. ||
|-
|| l_ukca_trophet || .false. || || l_ukca_use_background_aerosol || .true. ||
|-
|| lightnox_scale_fac || 2.0 || || max_ageair_reset_level || 10 ||
|-
|| mode_activation_dryr || 37.5 || || mode_aitsol_cvscav || 0.5 ||
|-
|| mode_incld_so2_rfrac || 0.25 || || mode_parfrac || 2.5 ||
|-
|| soa_yield_scaling || 2.0 || || || ||
|-
|| ukca_em_dir || Top-level paths: CMIP6_AEROCHEM_EMS = /data/d05/hadzm/ancil/n96e/cmip6/ !AeroChemEms/clim_2000/v1 (Meto-Cray) = /projects/ukca-meto/hadzm/ancil/n96e/cmip6/ !AeroChemEms/clim_2000/v1 (Monsoon2) '/work/n02/n02/ukca/ancil/n96e/cmip6/AeroChemEms/clim_2000/v1' (ARCHER) CMIP6_BIOG_EMS = /projects/um1/ancil/atmos/ n96e/ukca_emiss/biogenic/v1 (Meto,Monsoon) '/work/y07/y07/umshared/ancil/atmos/n96e/ukca_emiss/biogenic/v1' (ARCHER) Locations are set in file ''<suite>/site/<site>.rc'' || || || ||
|-
|| ukca_em_files || '$CMIP6_AEROCHEM_EMS/BC_biofuel_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/BC_fossil_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/DMS_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/DMS_land_spiro1992.nc' '$CMIP6_AEROCHEM_EMS/OC_biofuel_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/OC_fossil_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/SO2_high_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/SO2_low_anthropogenic_1995_2004_clim.nc' '$UM_NETCDF_UKCAEMISS_SO2NAT_DIR/$UM_NETCDF_UKCAEMISS_SO2NAT_FILE' '$CMIP6_AEROCHEM_EMS/BC_biomass_high_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/BC_biomass_low_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/OC_biomass_high_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/OC_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_C2H6_clim_2001-2010.nc' '$CMIP6_BIOG_EMS/POET_oceanic_C2H6_1990_lumped.nc' '$CMIP6_AEROCHEM_EMS/C2H6_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/C2H6_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_C3H8_clim_2001-2010.nc' '$CMIP6_BIOG_EMS/POET_oceanic_C3H8_1990_lumped.nc' '$CMIP6_AEROCHEM_EMS/C3H8_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/C3H8_biomass_low_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/CH4_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_CO_clim_2001-2010.nc' '$CMIP6_BIOG_EMS/POET_oceanic_CO_1990_processed.nc' '$CMIP6_AEROCHEM_EMS/CO_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/CO_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/nox_soil_0.5_0.5_scaled12TgNO.nc' '$CMIP6_AEROCHEM_EMS/NO_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/NO_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_NVOC_clim_2001-2010.nc' '$CMIP6_AEROCHEM_EMS/NVOC_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/NVOC_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_HCHO_clim_2001-2010.nc' '$CMIP6_AEROCHEM_EMS/HCHO_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/HCHO_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_MeCHO_clim_2001-2010.nc' '$CMIP6_AEROCHEM_EMS/MeCHO_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/MeCHO_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_Me2CO_clim_2001-2010.nc' '$CMIP6_AEROCHEM_EMS/Me2CO_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/Me2CO_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_C5H8_clim_2001-2010.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_Monoterp_clim_2001-2010.nc' '$CMIP6_BIOG_EMS/NH3_ocean_bouwman1997.nc' '$CMIP6_AEROCHEM_EMS/NH3_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/NH3_biomass_low_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/NO_aircrft_anthropogenic_1995_2004_clim.nc' || || || ||
|-
|| ukca_h2mmr || 3.4528E-08 || || ukca_n2mmr || 7.5468E-01 ||
|-
|| ukca_offline_dir || ''ignored'' || || ukca_offline_files || ''ignored'' ||
|-
|| ukca_rcpdir || '/home/d05/hadzm/job_files/scenario_files' (MetO/Monsoon2) '/work/n02/n02/ukca/job_files/scenario_files' (ARCHER) || || ukca_rcpfile || 'trgas_rcp_clim_2000.dat' ||
|-
|| ukcaaclw || '$UMDIR/vn$VN/ctldata/UKCA/radaer/ga7_1/nml_ac_lw' || || ukcaacsw || '$UMDIR/vn$VN/ctldata/UKCA/radaer/ga7_1/nml_ac_sw' ||
|-
|| ukcaanlw || '$UMDIR/vn$VN/ctldata/UKCA/radaer/ga7_1/nml_an_lw' || || ukcaansw || '$UMDIR/vn$VN/ctldata/UKCA/radaer/ga7_1/nml_an_sw' ||
|-
|| ukcacrlw || '$UMDIR/vn$VN/ctldata/UKCA/radaer/ga7_1/nml_cr_lw' || || ukcacrsw || '$UMDIR/vn$VN/ctldata/UKCA/radaer/ga7_1/nml_cr_sw' ||
|-
|| ukcaprec || '$SPECTRAL_FILE_DIR/RADAER_pcalc.ukca' || || || ||
|}

== STASH requests ==
Diagnostics Requested in ''u-ay770'' can be seen [[STASH_ay770 | here]]

== Assessment ==

UKCA evaluation suite output for : {{pdf|ukca_chem_eval_ay770.pdf|Chemistry}} and {{pdf|aero_eval_ay770.pdf|Aerosols}}

Autoassess output (vs UM11.0 GA7): [http://www-hc/~hadvg/auto_assess/u-ay770_v_u-av674_1989_020/index.html Internal], [http://collab.metoffice.gov.uk/twiki/bin/viewfile/Static/MohitDalvi/AutoAssess/u-ay770_v_u-av674_1989_020/index.html External]. ''Note: Radiation area output not produced. Click on link for Aerosol area output''.

Validation notes: [http://www-hc/~hadvg/valid/u-ay770_v_u-av674_1989_020/browser.html Internal], [https://collab.metoffice.gov.uk/twiki/bin/viewfile/Static/MohitDalvi/valid/u-ay770_v_u-av674_1989_020/browser.html External]

= Scaling Tests =

Scaling tests of GA7.1+StratTrop free-running configuration have been performed on the XCS and ARCHER using UM vn10.6.1. Scaling plots are below.

<gallery widths=300px heights=300px>
Image:XCS36_timings_GA71UKCA_cores.png|XCS GA7.1+StratTrop vn10.6.1 (36PPN)
Image:ARCHER_timings_GA71UKCA_cores.png|ARCHER GA7.1+StratTrop vn10.6.1 (24PPN)
</gallery>

= Monsoon2 changes including MOOSE archiving =

You will likely need to correctly set your Monsoon2 project and MOOSE project name in the suite. To do this go to '''suite conf <math>\rightarrow</math> Host Machine <math>\rightarrow</math> Met Office / Monsoon'''. You should then:

* Set ''Account_Monsoon'' to the correct value, e.g. '''ukca-cam''' etc.
* Put the correct ''MOOSE project name'' if required, e.g. '''ukca'''. Your Monsoon2 MOOSE project will be of the form ''project-NAME'', and you only need to enter ''NAME'' here.
* If you do not yet have access to MOOSE, please contact '''monsoon "at" metoffice.gov.uk'''.

= NEXCS changes including JASMIN archiving =

== Setting your NEXCS project ==

You might need to correctly set your NEXCS project in the suite and at the top of the '''<code>rose-suite.conf</code>''' as currently this is set to '''nexcs-n02''' in both places.

For the suite go to '''suite conf <math>\rightarrow</math> Host Machine <math>\rightarrow</math> Met Office / Monsoon'''. You should then:

* Set ''Account_Monsoon'' to the correct value, e.g. '''nexcs-n01''' etc.

The changes to <code>rose-suite.conf</code> must be made at the top of the file, where the lines
root-dir{share}=*=/projects/nexcs-n02/$USER
root-dir{work}=*=/projects/nexcs-n02/$USER
are, and change the <code>nexcs-n02</code> to be the appropriate project.

== JASMIN archiving using pptransfer ==

The suite is currently configured to use the ''pptransfer'' task to archive the data to JASMIN. The ''Archer Archiving'' panel is used to copy the data to <code>$SCRATCH</code> as the model runs. Note that this data may be deleted so it is essential that it is copied elsewhere as described below.

To be able to copy the files to JASMIN you should do the following:

* Set the value of ''transfer_dir'' to be the path to a JASMIN Group Workspace, e.g. <code>/group_workspaces/jasmin2/ukca/vol1/Juserid/archive</code>, where '''<code>Juserid</code>''' is your JASMIN userid. You can apply for access to a GWS on the [http://www.jasmin.ac.uk/services/group-workspaces/ JASMIN website].
* Set the value of ''remote_host'' to be the transfer machine on JASMIN to use, e.g. <code>jasmin-xfer1.ceda.ac.uk</code> or <code>jasmin-xfer2.ceda.ac.uk</code>. Using <code>jasmin-xfer2</code> is recommended but you must first [http://www.jasmin.ac.uk/services/high-performance-data-transfer/ request access to '''hpxfer'''].
* You should contact '''cms-support "at" ncas.ac.uk''' for advice as to how to connect to JASMIN from the XCS.

= ARCHER archiving to the RDF and JASMIN =

The ARCHER suite has been configured to allow for automatic archiving to the RDF (<code>/nerc</code> disk) and a JASMIN Group Workspace if required. These settings are found in the '''postproc <math>\rightarrow</math> Post Processing <math>\rightarrow</math> ''' and then either select '''Archer Archiving''' or '''JASMIN Transfer'''.

[[Image:U-ba915_running.png|thumb|300px|right|u-ba915 running, showing the ''postproc'' and ''pptransfer'' tasks in use.]]

== Archer Archiving using the postproc task ==

* Set the value of ''archive_root_path'' to be on the <code>/nerc</code> disk, e.g. <code>/nerc/n02/n02/Auserid/archive</code>, where '''<code>Auserid</code>''' is your ARCHER userid.
* Turn on archiving via the ''postproc'' task, by clicking the '''suite conf <math>\rightarrow</math> Tasks <math>\rightarrow</math> Post Processing''' button.

== JASMIN Transfer using the pptransfer task ==

* Ensure that you have archiving to the RDF turned on using the ''postproc'' task (see above).
* Set the value of ''transfer_dir'' to be the path to a JASMIN Group Workspace, e.g. <code>/group_workspaces/jasmin2/ukca/vol1/Juserid/archive</code>, where '''<code>Juserid</code>''' is your JASMIN userid. You can apply for access to a GWS on the [http://www.jasmin.ac.uk/services/group-workspaces/ JASMIN website].
* Set the value of ''remote_host'' to be the transfer machine on JASMIN to use, e.g. <code>jasmin-xfer1.ceda.ac.uk</code> or <code>jasmin-xfer2.ceda.ac.uk</code>. Using <code>jasmin-xfer2</code> is recommended but you must first [http://www.jasmin.ac.uk/services/high-performance-data-transfer/ request access to '''hpxfer'''].
* You will need to ensure that you can [http://cms.ncas.ac.uk/wiki/Docs/PostProcessingAppArcherSetup#Setupssh-keytoconnectfromPUMAtoDataTransferNode connect from PUMA to the RDF data transfer node] (e.g. <code>dtn02.rdf.ac.uk</code>).
* You will need to ensure that you can [http://cms.ncas.ac.uk/wiki/Docs/PostProcessingAppArcherSetup#Setupssh-keytoconnectfromDataTransferNodetoJASMIN connect from the data transfer node to JASMIN].
* You will need to ensure you include the following in your RDF <code>~/.ssh/config</code> file:
Host jasmin-xfer2 jasmin-xfer2.ceda.ac.uk
Hostname jasmin-xfer2.ceda.ac.uk
User Juserid
IdentityFile ~/.ssh/id_rsa_jasmin
ForwardAgent no

Host jasmin-xfer1 jasmin-xfer1.ceda.ac.uk
Hostname jasmin-xfer1.ceda.ac.uk
User Juserid
IdentityFile ~/.ssh/id_rsa_jasmin
ForwardAgent no
: where '''<code>Juserid</code>''' is your JASMIN userid. You should replace <code>~/.ssh/id_rsa_jasmin</code> with the path to your JASMIN SSH key (if it is named differently).
* You will need to ensure that you have the following in your PUMA <code>~/.ssh/config</code> file:
Host dtn02 dtn02.rdf.ac.uk
Hostname dtn02.rdf.ac.uk
User Auserid
IdentityFile ~/.ssh/id_dsa
ForwardAgent no
: where '''<code>Auserid</code>''' is your ARCHER/RDF userid. You should replace <code>~/.ssh/id_dsa</code> with the path to your ARCHER SSH key (if it is named differently).
* Turn on the ''pptransfer'' task by clicking the '''suite conf <math>\rightarrow</math> Tasks <math>\rightarrow</math> PP Transfer''' button.

= UKCA Release Job - UM11.0 - Nudged =

'''UM11.0 Gregorian GA7.1 + UKCA Strattrop GLOMAP (N96L85) TS2000- Nudged using ERA data'''

----
== Suite-id ==

* Met Office (XCE/F/S): '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/a/7/4/9 u-ba749]'''
* Monsoon2: '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/b/2/0/2 u-bb202]'''
* NEXCS: '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/b/N/N/N u-bbNNN]'''
* ARCHER: '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/b/2/1/0 u-bb210]'''

'''Remember to always COPY these suites to a new one that you own, rather than checking them out.''' This will prevent you accidentally over-writing the settings in the original suite.

== Changes to convert a Free-running job to Nudged ==

1. Copy (''rosie copy'') a Free-running job

2. cd ~/roses/<new suite> and ''rose edit'' --> suite-conf --> Model configuration --> Select ''Gregorian''

3. Panel --> um --> namelist --> UM science settings --> Sec 39- Nudging --> set:
{| border="1" cellpadding="2"
|-
|| l_nudging || true
|-
|| ndg_analysis_source || 0
|-
|| ndg_datapath || (path to ERA Nudging files) MetO: ''/data/d05/hadzm/analyses/era-int'' Monsoon:''/projects/ukca-admin/analyses/era-in''' ARCHER:''/work/n02/n02/ukca/analyses/era-in''
|-
|| ndg_hours_perdata || 6
|-
|| ndg_lev_bottom || 12
|-
|| ndg_lev_top || 80
|-
|| ndg_on_lev_bottom || 4
|-
|| ndg_on_lev_top || 2
|-
|| ndg_relax_tvalue || 4.6296e-05
|-
|| ndg_relax_uvalue ||4.6296e-05
|-
|| ndg_relax_vvalue || 4.6296e-05
|-
|| ndg_strat_fac || 1.0
|}
4. Panel > um --> namelist --> Model Input and Output --> STASH requests --> STASH requests Add a Stash request for '''30-451''' (Pressure at Tropopause level)with ''DIAG, TALLTS, UPUKCA'' profile. 
You can also add Nudging diagnostics - (Section 39 :39001,003,006,008,011,013) to help identify any problems in this setup.

5. Edit file ''app/um/opt/rose-app-gregorian.conf'' and replace:
- The ''ancilfilename'' for Sea surface temperature (usu SST_ANCIL_FILE) with location of the Gregorian Tslice2000 SST file e.g. ''$SST_SICE_ANCIL/sst_mon_clim_2000_n96e_grg.anc''
- The ''ancilfilename'' for Sea Ice (usu SICE_ANCIL_FILE) with location of the Gregorian Tslice2000 Sice file e.g. ''$SST_SICE_ANCIL/sice_mon_clim_2000_n96e_grg.anc''
$SST_SICE_ANCIL should already be set in your suite.

6. In same file: Manually activate the ''meanfreqim='' item i.e. remove the ''!!'' prefixing the item.

7. Edit ''app/um/rose-app.conf'' and replace '''two''' files from the ''ukca_em_files'' list:
- ''$UM_NETCDF_UKCAEMISS_SO2_NAT_DIR/UM_NETCDF_UKCAEMISS_SO2_NAT_FILE'' with ''$CMIP6_AEROCHEM_EMS/aerocom/ukca_emiss_SO2_nat_grg.nc''
- ''$CMIP6_AEROCHEM_EMS/CH4_biomass_low_1995_2004.nc'' with ''$CMIP6_AEROCHEM_EMS/CH4_biomass_low_1995_2004_grg.nc'' (Not used in std config as CH4 is specified).

== Resources ==
{| border="1" style="background-color:white" cellpadding="10"
|-
|| Nudged || XCE/F/S: '''<code>u-ba749</code>''' || Monsoon2: '''<code>u-bb202</code>''' || NEXCS: '''<code>u-bbNNN</code>''' || ARCHER: '''<code>u-bb210</code>'''
|-
|| Run-time (per model month) || ~1 hour 30 minutes (XCS) || ~1 hour 30 minutes || ~1 hour 30 minutes || ~1 hour 30 minutes
|-
|| Cycling || P1M in PT1H40M (XCS) || P1M in PT1H40M || P1M in PT1H40M This could be changed to take advantage of the longer queues on NEXCS. || P1M in PT1H40M This could be changed to take advantage of the longer queues on ARCHER.
|-
|| Estimated cost || || 216 node-hours/model year || 216 node-hours/model year or 117 kAU/model year equivalent || 117 kAU/model year
|-
|| Decomposition || 18EW x 24NS on 12 nodes (XCS: 36PPN) || 18EW x 24NS on 12 nodes (36PPN) || 18EW x 24NS on 12 nodes (36PPN) || 24EW x 15NS on 15 nodes (24PPN)
|-
|| Storage Requirements (current STASH settings) || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) MASS costs: £2.01 per model year || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) copied to a JASMIN GWS as the model runs || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) copied to the <code>/nerc</code> disk and a JASMIN GWS as the model runs
|-
|}

Release Job UM11.0

2018-11-09T15:23:56Z

Alex:

==Overview==

{| border="1" style="background-color:white" cellpadding="10"
|-
|| Free-running || XCE/F/S: '''<code>u-ay770</code>''' || Monsoon2: '''<code>u-bb055</code>''' || NEXCS: '''<code>u-bb056</code>''' || ARCHER: '''<code>u-ba915</code>'''
|-
|| Run-time (per model month) || ~1 hour 10 minutes (XCS) || ~1 hour 10 minutes || ~1 hour 10 minutes || ~1 hour 20 minutes
|-
|| Cycling || P1M in PT1H40M (XCS) || P1M in PT1H40M || P1M in PT1H40M This could be changed to take advantage of the longer queues on NEXCS. || P1M in PT1H40M This could be changed to take advantage of the longer queues on ARCHER.
|-
|| Estimated cost || || 168 node-hours/model year || 168 node-hours/model year or 91 kAU/model year equivalent || 91 kAU/model year
|-
|| Decomposition || 18EW x 24NS on 12 nodes (XCS: 36PPN) || 18EW x 24NS on 12 nodes (36PPN) || 18EW x 24NS on 12 nodes (36PPN) || 24EW x 15NS on 15 nodes (24PPN)
|-
|| Storage Requirements (current STASH settings) || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) MASS costs: £2.01 per model year || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) copied to a JASMIN GWS as the model runs || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) copied to the <code>/nerc</code> disk and a JASMIN GWS as the model runs
|-
|}

 __TOC__

= UKCA Release Job - UM11.0 - Free Running =
==UM11.0 GA7.1 + UKCA Strattrop GLOMAP (N96L85) TS2000 ==

----
== Suite -id ==

* Met Office (XCE/F/S): '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/a/y/7/7/0 u-ay770]'''
* Monsoon2: '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/b/0/5/5 u-bb055]'''
* NEXCS: '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/b/0/5/6 u-bb056]'''
* ARCHER: '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/a/9/1/5 u-ba915]'''

'''Remember to always COPY these suites to a new one that you own, rather than checking them out.''' This will prevent you accidentally over-writing the settings in the original suite.

== Base/ inherited configuration ==

''UM11.0 GA7.1 UKCA Strattrop GLOMAP Y2014; TropO3 fixes'' suite '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/a/v/8/1/8 u-av818]''' combined with settings from [https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/a/u/9/1/7 u-au917]

UKCA evaluation suite output for u-au917 can be seen [http://www.ukca.ac.uk/images/a/a5/Ukca_chem_eval_as976_au917_1999-2008.pdf here]

== Branches ==
{| border='1' cellpadding='1'
! Branch name || Description || Metadata change?
|-
|| [https://code.metoffice.gov.uk/trac/um/log/main/branches/dev/lukeabraham/vn11.0_ukca_linox_tweaks branches/dev/lukeabraham/vn11.0_ukca_linox_tweaks] || Uses single NOx production factor for cld-cld and cldgrn flashes || Yes
|-
|| [https://code.metoffice.gov.uk/trac/um/log/main/branches/dev/dev/mohitdalvi/vn11.0_ukca_ageair_and_stashm branches/dev/dev/mohitdalvi/vn11.0_ukca_ageair_and_stashm] || Fixes STASH definition of age-of-air pressure-level diagnostic '''Not required for build (fcm_make_um), only replaces runtime STASHmaster''' (specified in app/um/rose-app.conf=>[file:STASHmaster] section) || Yes
|}

* Suite uses metadata from '''~hadzm/code/vn11.0_ukca_linox_tweaks_meta/rose-meta/um-atmos/HEAD''' (same location on meto-cray and Monsoon2), as specified in ''app/um/rose-app.conf, meta=''

== Initialisation ==

The suite (meteorological, aerochem variables) will initialise from a dump produced at the end of a 20-year spin-up run of the previous GA7.1+Strattrop AMIP run ''u-au917'' 
* XCS-R ''/data/d05/hadzm/dumps/au917a.da20080901_00''
* Monsoon2/NEXCS:''/projects/ukca-admin/inputs/initial/N96eL85/au917a.da20080901_00''
* ARCHER: ''/work/n02/n02/ukca/initial/N96eL85/au917a.da20080901_00''

The path to this is set in the file(s): ''site/meto_cray.rc'', ''site/MONSOON.rc'', or ''site/archer.rc'' as variable '''AINITIAL'''. You can look in the site files for other specific changes.

== Forcing data ==

=== Emissions ===

Emissions for aerosol and chemical species (except biogenic) are prescribed as monthly cyclic climatologies around Year2000 by averaging data for 1995-2004 from the CMIP6 [https://code.metoffice.gov.uk/trac/ancil/wiki/CMIP6/ForcingData/AerosolChemistryEmissions historical] emissions developed for UKESM1. Script used was make_clim_emiss.py.

Biogenic emissions used are those originally [http://www.ukca.ac.uk/wiki/index.php/Emissions_for_ACSIS developed] for the NERC ACSIS project and represent datasets pertaining to 1990s,2000s for different species.

=== Sea surface temperature and sea ice concentrations ===

The SST and Sice values are also prescribed as monthly climatologies for 2000 created by averaging over 1995-2004 the timeseries data [https://code.metoffice.gov.uk/trac/ancil/wiki/CMIP6/ForcingData/SstSeaIce generated] for CMIP6 Atmos-only simulations.

=== GHG and Trace Gas Concentrations ===

* These have been specified as values averaged over 1995-2004 from the historical GHG forcing data [https://code.metoffice.gov.uk/trac/ancil/wiki/CMIP6/ForcingData/GreenhouseGases prepared] for CMIP6.
* This was done by manually averaging data for above years from the files {{{/projects/ancils/cmip6/ancils/any/timeseries_1850-2014/cmip6/global_ghg_cmip6.conf}}} and {{{trgas_rcp_historical.dat}}} respectively for the Radiation GHG inputs and UKCA trace gas specification.

== Critical Model setup / Namelist settings ==

==== SST/ Seaice ====

* Panel: ''um => namelist => Reconfiguration and Ancil control => Configure ancil and dump fields''
* Look for initialisation of items:
stashcode=24 (SST), ancilfilename='$SST_SICE_ANCIL/sst_clim_mon_2000_n96e.anc'
stashcodes=31,32 (sea-ice), ancilfilename='$SST_SICE_ANCIL/sice_clim_mon_2000_n96e.anc'
where:
site/meto_cray.rc: SST_SICE_ANCIL = '/data/d05/hadzm/ancil/n96e/cmip6/sstice/clim_2000'
site/MONSOON.rc: SST_SICE_ANCIL = '/projects/ukca-meto/hadzm/ancil/n96e/cmip6/sstice/clim_2000'
site/archer.rc: SST_SICE_ANCIL = '/work/n02/n02/ukca/ancil/n96e/cmip6/sstice/clim_2000'

==== RUN_Radiation GHG values ====

* Panel: ''Sec 01 02 Radiation => Gas MMRs => Varying Gas MMRs'': Set '''l_climcfg=False''' and then specify these values in the ''Gas MMRs' panel:
{| border='1' cellpadding='2'
|!= Item =||= Value =||= Remarks =
|-
|| c113mmr || 0.0 ||
|-
|| c114mmr || 0.0 ||
|-
|| c11mmr || 0.0 ||
|-
|| c12mmr || 4.3674e-09 ||
|-
|| ch4mmr || 9.799e-04 || ignored, uses conc from UKCA
|-
|| co2_mmr || 5.5815e-04 ||
|-
|| hcfc22mmr || 0.0 ||
|-
|| hfc125mmr || 0.0 ||
|-
|| hfc134ammr || 3.5211e-10 ||
|-
|| n2ommr || 4.7797e-04 || ignored, uses conc from UKCA
|-
|| o2mmr || 0.2314 ||
|}

==== RUN_UKCA settings ====
{| border='1' cellpadding='2'
! Item || Value || Remarks || Item || Value || Remarks
|-
|| biom_aer_ems_scaling || 2.0 || || chem_timestep || 3600 ||
|-
|| dir_strat_aer || '/home/d05/hadzm/job_files/SAD' '/work/n02/n02/ukca/job_files/SAD' (ARCHER) || || fastjx_mode || 1 ||
|-
|| fastjx_numwl || 18 || || fastjx_prescutoff || 20.0 ||
|-
|| file_strat_aer || 'CMIP_1850_2014_average_sad_v3_56_level.asc' || || i_ageair_reset_method || 1 ||
|-
|| i_mode_nzts || 15 || || i_mode_setup || 2 ||
|-
|| i_ukca_chem || 51 || || i_ukca_conserve_method || 2 ||
|-
|| i_ukca_dms_flux || 1 || || i_ukca_hiorder_scheme || 0 ||
|-
|| i_ukca_photol || 3 || || i_ukca_quasinewton_end || 3 ||
|-
|| i_ukca_quasinewton_start || 2 || || i_ukca_scenario || 2 ||
|-
|| i_ukca_solcyc || 0 || || jvscat_file || 'FJX_scat.dat' ||
|-
|| jvspec_dir || '$UMDIR/vn$VN/ctldata/UKCA/fastj' || || jvspec_file || 'FJX_spec_Nov11.dat' ||
|-
|| l_bcoc_bf || .true. || || l_bcoc_bm || .true. ||
|-
|| l_bcoc_ff || .true. || || l_mode_bhn_on || .true. ||
|-
|| l_mode_bln_on || .false. || || l_ukca || .true. ||
|-
|| l_ukca_ageair || .true. || || l_ukca_aie1 || .true. ||
|-
|| l_ukca_aie2 || .true. || || l_ukca_arg_act || .true. ||
|-
|| l_ukca_asad_columns || .false. || || l_ukca_asad_plev || .true. ||
|-
|| l_ukca_chem_aero || .true. || || l_ukca_chem_plev || .true. ||
|-
|| l_ukca_ddep_lev1 || .false. || || l_ukca_h2o_feedback || .true. ||
|-
|| l_ukca_het_psc || .true. || || l_ukca_ibvoc || .false. ||
|-
|| l_ukca_intdd || .true. || || l_ukca_limit_nat || .true. ||
|-
|| l_ukca_linox_scaling || .true. || || l_ukca_mode || .true. ||
|-
|| l_ukca_prescribech4 || .false. || || l_ukca_prim_moc || .true. ||
|-
|| l_ukca_primbcoc || .true. || || l_ukca_primss || .true. ||
|-
|| l_ukca_primsu || .true. || || l_ukca_qch4inter || .false. ||
|-
|| l_ukca_quasinewton || .true. || || l_ukca_radaer || .true. ||
|-
|| l_ukca_radaer_sustrat || .true. || || l_ukca_radch4 || .true. ||
|-
|| l_ukca_radf11 || .false. || || l_ukca_radf113 || .false. ||
|-
|| l_ukca_radf12 || .false. || || l_ukca_radf22 || .false. ||
|-
|| l_ukca_radn2o || .true. || || l_ukca_rado3 || .true. ||
|-
|| l_ukca_sa_clim || .true. || || l_ukca_scale_biom_aer_ems || .true. ||
|-
|| l_ukca_scale_seadms_ems || .false. || || l_ukca_scale_soa_yield || .true. ||
|-
|| l_ukca_set_trace_gases || .true. || || l_ukca_sfix || .false. ||
|-
|| l_ukca_so2ems_expvolc || .false. || || l_ukca_src_in_conservation || .true. ||
|-
|| l_ukca_trophet || .false. || || l_ukca_use_background_aerosol || .true. ||
|-
|| lightnox_scale_fac || 2.0 || || max_ageair_reset_level || 10 ||
|-
|| mode_activation_dryr || 37.5 || || mode_aitsol_cvscav || 0.5 ||
|-
|| mode_incld_so2_rfrac || 0.25 || || mode_parfrac || 2.5 ||
|-
|| soa_yield_scaling || 2.0 || || || ||
|-
|| ukca_em_dir || Top-level paths: CMIP6_AEROCHEM_EMS = /data/d05/hadzm/ancil/n96e/cmip6/ !AeroChemEms/clim_2000/v1 (Meto-Cray) = /projects/ukca-meto/hadzm/ancil/n96e/cmip6/ !AeroChemEms/clim_2000/v1 (Monsoon2) '/work/n02/n02/ukca/ancil/n96e/cmip6/AeroChemEms/clim_2000/v1' (ARCHER) CMIP6_BIOG_EMS = /projects/um1/ancil/atmos/ n96e/ukca_emiss/biogenic/v1 (Meto,Monsoon) '/work/y07/y07/umshared/ancil/atmos/n96e/ukca_emiss/biogenic/v1' (ARCHER) Locations are set in file ''<suite>/site/<site>.rc'' || || || ||
|-
|| ukca_em_files || '$CMIP6_AEROCHEM_EMS/BC_biofuel_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/BC_fossil_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/DMS_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/DMS_land_spiro1992.nc' '$CMIP6_AEROCHEM_EMS/OC_biofuel_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/OC_fossil_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/SO2_high_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/SO2_low_anthropogenic_1995_2004_clim.nc' '$UM_NETCDF_UKCAEMISS_SO2NAT_DIR/$UM_NETCDF_UKCAEMISS_SO2NAT_FILE' '$CMIP6_AEROCHEM_EMS/BC_biomass_high_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/BC_biomass_low_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/OC_biomass_high_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/OC_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_C2H6_clim_2001-2010.nc' '$CMIP6_BIOG_EMS/POET_oceanic_C2H6_1990_lumped.nc' '$CMIP6_AEROCHEM_EMS/C2H6_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/C2H6_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_C3H8_clim_2001-2010.nc' '$CMIP6_BIOG_EMS/POET_oceanic_C3H8_1990_lumped.nc' '$CMIP6_AEROCHEM_EMS/C3H8_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/C3H8_biomass_low_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/CH4_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_CO_clim_2001-2010.nc' '$CMIP6_BIOG_EMS/POET_oceanic_CO_1990_processed.nc' '$CMIP6_AEROCHEM_EMS/CO_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/CO_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/nox_soil_0.5_0.5_scaled12TgNO.nc' '$CMIP6_AEROCHEM_EMS/NO_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/NO_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_NVOC_clim_2001-2010.nc' '$CMIP6_AEROCHEM_EMS/NVOC_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/NVOC_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_HCHO_clim_2001-2010.nc' '$CMIP6_AEROCHEM_EMS/HCHO_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/HCHO_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_MeCHO_clim_2001-2010.nc' '$CMIP6_AEROCHEM_EMS/MeCHO_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/MeCHO_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_Me2CO_clim_2001-2010.nc' '$CMIP6_AEROCHEM_EMS/Me2CO_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/Me2CO_biomass_low_1995_2004_clim.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_C5H8_clim_2001-2010.nc' '$CMIP6_BIOG_EMS/MEGAN-MACC_biogenic_Monoterp_clim_2001-2010.nc' '$CMIP6_BIOG_EMS/NH3_ocean_bouwman1997.nc' '$CMIP6_AEROCHEM_EMS/NH3_anthropogenic_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/NH3_biomass_low_1995_2004_clim.nc' '$CMIP6_AEROCHEM_EMS/NO_aircrft_anthropogenic_1995_2004_clim.nc' || || || ||
|-
|| ukca_h2mmr || 3.4528E-08 || || ukca_n2mmr || 7.5468E-01 ||
|-
|| ukca_offline_dir || ''ignored'' || || ukca_offline_files || ''ignored'' ||
|-
|| ukca_rcpdir || '/home/d05/hadzm/job_files/scenario_files' (MetO/Monsoon2) '/work/n02/n02/ukca/job_files/scenario_files' (ARCHER) || || ukca_rcpfile || 'trgas_rcp_clim_2000.dat' ||
|-
|| ukcaaclw || '$UMDIR/vn$VN/ctldata/UKCA/radaer/ga7_1/nml_ac_lw' || || ukcaacsw || '$UMDIR/vn$VN/ctldata/UKCA/radaer/ga7_1/nml_ac_sw' ||
|-
|| ukcaanlw || '$UMDIR/vn$VN/ctldata/UKCA/radaer/ga7_1/nml_an_lw' || || ukcaansw || '$UMDIR/vn$VN/ctldata/UKCA/radaer/ga7_1/nml_an_sw' ||
|-
|| ukcacrlw || '$UMDIR/vn$VN/ctldata/UKCA/radaer/ga7_1/nml_cr_lw' || || ukcacrsw || '$UMDIR/vn$VN/ctldata/UKCA/radaer/ga7_1/nml_cr_sw' ||
|-
|| ukcaprec || '$SPECTRAL_FILE_DIR/RADAER_pcalc.ukca' || || || ||
|}

== STASH requests ==
Diagnostics Requested in ''u-ay770'' can be seen [[STASH_ay770 | here]]

== Assessment ==

UKCA evaluation suite output for : {{pdf|ukca_chem_eval_ay770.pdf|Chemistry}} and {{pdf|aero_eval_ay770.pdf|Aerosols}}

ATA -- I have had a look at the Chemistry evaluation output. In general vn11 looks good to be released. As with other release versions I think it is important that we probably summarise a number of "features" of the model output. For example, the O3 STE is very low. I know Mohit has recently fixed the diagnostic and it would be good if this fix could be added and new output generated to confirm that the STE is so low. The other bits of the budget however look fine. The methane lifetime is a bit too short. But the age of air looks good relative to SF6. etc etc.

Autoassess output (vs UM11.0 GA7): [http://www-hc/~hadvg/auto_assess/u-ay770_v_u-av674_1989_020/index.html Internal], [http://collab.metoffice.gov.uk/twiki/bin/viewfile/Static/MohitDalvi/AutoAssess/u-ay770_v_u-av674_1989_020/index.html External]. ''Note: Radiation area output not produced. Click on link for Aerosol area output''.

Validation notes: [http://www-hc/~hadvg/valid/u-ay770_v_u-av674_1989_020/browser.html Internal], [https://collab.metoffice.gov.uk/twiki/bin/viewfile/Static/MohitDalvi/valid/u-ay770_v_u-av674_1989_020/browser.html External]

= Scaling Tests =

Scaling tests of GA7.1+StratTrop free-running configuration have been performed on the XCS and ARCHER using UM vn10.6.1. Scaling plots are below.

<gallery widths=300px heights=300px>
Image:XCS36_timings_GA71UKCA_cores.png|XCS GA7.1+StratTrop vn10.6.1 (36PPN)
Image:ARCHER_timings_GA71UKCA_cores.png|ARCHER GA7.1+StratTrop vn10.6.1 (24PPN)
</gallery>

= Monsoon2 changes including MOOSE archiving =

You will likely need to correctly set your Monsoon2 project and MOOSE project name in the suite. To do this go to '''suite conf <math>\rightarrow</math> Host Machine <math>\rightarrow</math> Met Office / Monsoon'''. You should then:

* Set ''Account_Monsoon'' to the correct value, e.g. '''ukca-cam''' etc.
* Put the correct ''MOOSE project name'' if required, e.g. '''ukca'''. Your Monsoon2 MOOSE project will be of the form ''project-NAME'', and you only need to enter ''NAME'' here.
* If you do not yet have access to MOOSE, please contact '''monsoon "at" metoffice.gov.uk'''.

= NEXCS changes including JASMIN archiving =

== Setting your NEXCS project ==

You might need to correctly set your NEXCS project in the suite and at the top of the '''<code>rose-suite.conf</code>''' as currently this is set to '''nexcs-n02''' in both places.

For the suite go to '''suite conf <math>\rightarrow</math> Host Machine <math>\rightarrow</math> Met Office / Monsoon'''. You should then:

* Set ''Account_Monsoon'' to the correct value, e.g. '''nexcs-n01''' etc.

The changes to <code>rose-suite.conf</code> must be made at the top of the file, where the lines
root-dir{share}=*=/projects/nexcs-n02/$USER
root-dir{work}=*=/projects/nexcs-n02/$USER
are, and change the <code>nexcs-n02</code> to be the appropriate project.

== JASMIN archiving using pptransfer ==

The suite is currently configured to use the ''pptransfer'' task to archive the data to JASMIN. The ''Archer Archiving'' panel is used to copy the data to <code>$SCRATCH</code> as the model runs. Note that this data may be deleted so it is essential that it is copied elsewhere as described below.

To be able to copy the files to JASMIN you should do the following:

* Set the value of ''transfer_dir'' to be the path to a JASMIN Group Workspace, e.g. <code>/group_workspaces/jasmin2/ukca/vol1/Juserid/archive</code>, where '''<code>Juserid</code>''' is your JASMIN userid. You can apply for access to a GWS on the [http://www.jasmin.ac.uk/services/group-workspaces/ JASMIN website].
* Set the value of ''remote_host'' to be the transfer machine on JASMIN to use, e.g. <code>jasmin-xfer1.ceda.ac.uk</code> or <code>jasmin-xfer2.ceda.ac.uk</code>. Using <code>jasmin-xfer2</code> is recommended but you must first [http://www.jasmin.ac.uk/services/high-performance-data-transfer/ request access to '''hpxfer'''].
* You should contact '''cms-support "at" ncas.ac.uk''' for advice as to how to connect to JASMIN from the XCS.

= ARCHER archiving to the RDF and JASMIN =

The ARCHER suite has been configured to allow for automatic archiving to the RDF (<code>/nerc</code> disk) and a JASMIN Group Workspace if required. These settings are found in the '''postproc <math>\rightarrow</math> Post Processing <math>\rightarrow</math> ''' and then either select '''Archer Archiving''' or '''JASMIN Transfer'''.

[[Image:U-ba915_running.png|thumb|300px|right|u-ba915 running, showing the ''postproc'' and ''pptransfer'' tasks in use.]]

== Archer Archiving using the postproc task ==

* Set the value of ''archive_root_path'' to be on the <code>/nerc</code> disk, e.g. <code>/nerc/n02/n02/Auserid/archive</code>, where '''<code>Auserid</code>''' is your ARCHER userid.
* Turn on archiving via the ''postproc'' task, by clicking the '''suite conf <math>\rightarrow</math> Tasks <math>\rightarrow</math> Post Processing''' button.

== JASMIN Transfer using the pptransfer task ==

* Ensure that you have archiving to the RDF turned on using the ''postproc'' task (see above).
* Set the value of ''transfer_dir'' to be the path to a JASMIN Group Workspace, e.g. <code>/group_workspaces/jasmin2/ukca/vol1/Juserid/archive</code>, where '''<code>Juserid</code>''' is your JASMIN userid. You can apply for access to a GWS on the [http://www.jasmin.ac.uk/services/group-workspaces/ JASMIN website].
* Set the value of ''remote_host'' to be the transfer machine on JASMIN to use, e.g. <code>jasmin-xfer1.ceda.ac.uk</code> or <code>jasmin-xfer2.ceda.ac.uk</code>. Using <code>jasmin-xfer2</code> is recommended but you must first [http://www.jasmin.ac.uk/services/high-performance-data-transfer/ request access to '''hpxfer'''].
* You will need to ensure that you can [http://cms.ncas.ac.uk/wiki/Docs/PostProcessingAppArcherSetup#Setupssh-keytoconnectfromPUMAtoDataTransferNode connect from PUMA to the RDF data transfer node] (e.g. <code>dtn02.rdf.ac.uk</code>).
* You will need to ensure that you can [http://cms.ncas.ac.uk/wiki/Docs/PostProcessingAppArcherSetup#Setupssh-keytoconnectfromDataTransferNodetoJASMIN connect from the data transfer node to JASMIN].
* You will need to ensure you include the following in your RDF <code>~/.ssh/config</code> file:
Host jasmin-xfer2 jasmin-xfer2.ceda.ac.uk
Hostname jasmin-xfer2.ceda.ac.uk
User Juserid
IdentityFile ~/.ssh/id_rsa_jasmin
ForwardAgent no

Host jasmin-xfer1 jasmin-xfer1.ceda.ac.uk
Hostname jasmin-xfer1.ceda.ac.uk
User Juserid
IdentityFile ~/.ssh/id_rsa_jasmin
ForwardAgent no
: where '''<code>Juserid</code>''' is your JASMIN userid. You should replace <code>~/.ssh/id_rsa_jasmin</code> with the path to your JASMIN SSH key (if it is named differently).
* You will need to ensure that you have the following in your PUMA <code>~/.ssh/config</code> file:
Host dtn02 dtn02.rdf.ac.uk
Hostname dtn02.rdf.ac.uk
User Auserid
IdentityFile ~/.ssh/id_dsa
ForwardAgent no
: where '''<code>Auserid</code>''' is your ARCHER/RDF userid. You should replace <code>~/.ssh/id_dsa</code> with the path to your ARCHER SSH key (if it is named differently).
* Turn on the ''pptransfer'' task by clicking the '''suite conf <math>\rightarrow</math> Tasks <math>\rightarrow</math> PP Transfer''' button.

= UKCA Release Job - UM11.0 - Nudged =

'''UM11.0 Gregorian GA7.1 + UKCA Strattrop GLOMAP (N96L85) TS2000- Nudged using ERA data'''

----
== Suite-id ==

* Met Office (XCE/F/S): '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/a/7/4/9 u-ba749]'''
* Monsoon2: '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/b/2/0/2 u-bb202]'''
* NEXCS: '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/b/N/N/N u-bbNNN]'''
* ARCHER: '''[https://code.metoffice.gov.uk/trac/roses-u/intertrac/source:/b/b/2/1/0 u-bb210]'''

'''Remember to always COPY these suites to a new one that you own, rather than checking them out.''' This will prevent you accidentally over-writing the settings in the original suite.

== Changes to convert a Free-running job to Nudged ==

1. Copy (''rosie copy'') a Free-running job

2. cd ~/roses/<new suite> and ''rose edit'' --> suite-conf --> Model configuration --> Select ''Gregorian''

3. Panel --> um --> namelist --> UM science settings --> Sec 39- Nudging --> set:
{| border="1" cellpadding="2"
|-
|| l_nudging || true
|-
|| ndg_analysis_source || 0
|-
|| ndg_datapath || (path to ERA Nudging files) MetO: ''/data/d05/hadzm/analyses/era-int'' Monsoon:''/projects/ukca-admin/analyses/era-in''' ARCHER:''/work/n02/n02/ukca/analyses/era-in''
|-
|| ndg_hours_perdata || 6
|-
|| ndg_lev_bottom || 12
|-
|| ndg_lev_top || 80
|-
|| ndg_on_lev_bottom || 4
|-
|| ndg_on_lev_top || 2
|-
|| ndg_relax_tvalue || 4.6296e-05
|-
|| ndg_relax_uvalue ||4.6296e-05
|-
|| ndg_relax_vvalue || 4.6296e-05
|-
|| ndg_strat_fac || 1.0
|}
4. Panel > um --> namelist --> Model Input and Output --> STASH requests --> STASH requests Add a Stash request for '''30-451''' (Pressure at Tropopause level)with ''DIAG, TALLTS, UPUKCA'' profile. 
You can also add Nudging diagnostics - (Section 39 :39001,003,006,008,011,013) to help identify any problems in this setup.

5. Edit file ''app/um/opt/rose-app-gregorian.conf'' and replace:
- The ''ancilfilename'' for Sea surface temperature (usu SST_ANCIL_FILE) with location of the Gregorian Tslice2000 SST file e.g. ''$SST_SICE_ANCIL/sst_mon_clim_2000_n96e_grg.anc''
- The ''ancilfilename'' for Sea Ice (usu SICE_ANCIL_FILE) with location of the Gregorian Tslice2000 Sice file e.g. ''$SST_SICE_ANCIL/sice_mon_clim_2000_n96e_grg.anc''
$SST_SICE_ANCIL should already be set in your suite.

6. In same file: Manually activate the ''meanfreqim='' item i.e. remove the ''!!'' prefixing the item.

7. Edit ''app/um/rose-app.conf'' and replace '''two''' files from the ''ukca_em_files'' list:
- ''$UM_NETCDF_UKCAEMISS_SO2_NAT_DIR/UM_NETCDF_UKCAEMISS_SO2_NAT_FILE'' with ''$CMIP6_AEROCHEM_EMS/aerocom/ukca_emiss_SO2_nat_grg.nc''
- ''$CMIP6_AEROCHEM_EMS/CH4_biomass_low_1995_2004.nc'' with ''$CMIP6_AEROCHEM_EMS/CH4_biomass_low_1995_2004_grg.nc'' (Not used in std config as CH4 is specified).

== Resources ==
{| border="1" style="background-color:white" cellpadding="10"
|-
|| Nudged || XCE/F/S: '''<code>u-ba749</code>''' || Monsoon2: '''<code>u-bb202</code>''' || NEXCS: '''<code>u-bbNNN</code>''' || ARCHER: '''<code>u-bb210</code>'''
|-
|| Run-time (per model month) || ~1 hour 30 minutes (XCS) || ~1 hour 30 minutes || ~1 hour 30 minutes || ~1 hour 30 minutes
|-
|| Cycling || P1M in PT1H40M (XCS) || P1M in PT1H40M || P1M in PT1H40M This could be changed to take advantage of the longer queues on NEXCS. || P1M in PT1H40M This could be changed to take advantage of the longer queues on ARCHER.
|-
|| Estimated cost || || 216 node-hours/model year || 216 node-hours/model year or 117 kAU/model year equivalent || 117 kAU/model year
|-
|| Decomposition || 18EW x 24NS on 12 nodes (XCS: 36PPN) || 18EW x 24NS on 12 nodes (36PPN) || 18EW x 24NS on 12 nodes (36PPN) || 24EW x 15NS on 15 nodes (24PPN)
|-
|| Storage Requirements (current STASH settings) || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) MASS costs: £2.01 per model year || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) copied to a JASMIN GWS as the model runs || 73.5GB per model year (32-bit pp-files & seasonal 64-bit dumps) copied to the <code>/nerc</code> disk and a JASMIN GWS as the model runs
|-
|}

File:Strat output.pdf

2014-12-17T14:15:05Z

Alex: Alex uploaded a new version of "File:Strat output.pdf"

Here are the annual total fluxes (moles) for each reaction (or the major reactions (top 10 etc) that contributes to the production or loss of a compound (e.g. OH, NO2 etc).

File:Strat output.pdf

2014-12-15T18:24:29Z

Alex: Alex uploaded a new version of "File:Strat output.pdf"

Here are the annual total fluxes (moles) for each reaction (or the major reactions (top 10 etc) that contributes to the production or loss of a compound (e.g. OH, NO2 etc).

NOy PEG

2014-12-15T17:28:42Z

Alex: /* Results */

==vn7.3 vs. vn8.4==

While UKCA had low NOy at vn7.3, this feature has not improved when moving to vn8.2/vn8.4 GA4.0 jobs, and may even have become worse.

A pair of simulations have been set-up to try to aid the diagnosis of the cause of this low NOy. While there have been many changes to the base atmospheric model, the differences between the UKCA chemistry scheme used have been minimised.

* All surface and aircraft chemical emissions are the same between both jobs, and are year 2000 climatologies
* The SST/Sea-Ice ancillaries are daily means from the Reynolds dataset, and are meaned over 1995-2005
* All chemical reactions and associated rates are the same between both jobs
* The GHGs and tracer lower boundary conditions are the same for both jobs
** 2000-12-01 from the CCMI REF-C2 specification taking WMO2011 values for ODSs and following the historical values for GHGs from the RCP scenarios defined for CMIP5
* The initial conditions of the chemical species are the same for both jobs, originally taken from a vn7.3 job. The winds and other physical initial conditions are different however
* Radiative feedback from O3 is included in both jobs
** vn8.4 job also considers radiative feedback from aerosols
* The same lightning NOx routine were used by both models, and these were scaled to give approximately the same annual emissions

'''NOTE:''' While the vn8.4 job does include GLOMAP-mode aerosols and some extra associated chemical reactions, the low NOy has also been observed in the vn8.2 CheST (only) configuration.

==Results==
{| border="1" style="background-color:white" cellpadding="10"
|-
|| || VN7.3 || VN8.4 || VN7.3
|-
|| MONSooN jobid || xjcir || xjcin || xgywn
|-
|| Configuration || HadGEM3-A r2.0 || HadGEM3-A GA4.0 || HadGEM3-A r2.0 (ish)
|-
|| Resolution || N48L60 || N96L85 || N48L60
|-
|| UKCA scheme || CheST || CheST+GLOMAP || CheST
|-
|| Model set-up || TS2000 || TS2000 || TS2000
|-
|| Evaluation Suite Output (Chemistry)
||
{{pdf| Xjcir_eval_yr01.pdf | Xjcir_eval_yr01.pdf }} 
{{pdf| Xjcir_eval_yr02.pdf | Xjcir_eval_yr02.pdf }} 
{{pdf| Xjcir_eval_yr03.pdf | Xjcir_eval_yr03.pdf }} 
{{pdf| Xjcir_eval_yr04.pdf | Xjcir_eval_yr04.pdf }} 
{{pdf| Xjcir_eval_yr05.pdf | Xjcir_eval_yr05.pdf }} 
{{pdf| Xjcir_eval_yr06.pdf | Xjcir_eval_yr06.pdf }} 
{{pdf| Xjcir_eval_yr07.pdf | Xjcir_eval_yr07.pdf }} 
{{pdf| Xjcir_eval_yr08.pdf | Xjcir_eval_yr08.pdf }} 
{{pdf| Xjcir_eval_yr09.pdf | Xjcir_eval_yr09.pdf }} 
{{pdf| Xjcir_eval_yr10.pdf | Xjcir_eval_yr10.pdf }}
||
{{pdf| Xjcin_eval_yr01.pdf | Xjcin_eval_yr01.pdf }} 
{{pdf| Xjcin_eval_yr02.pdf | Xjcin_eval_yr02.pdf }} 
{{pdf| Xjcin_eval_yr03.pdf | Xjcin_eval_yr03.pdf }} 
{{pdf| Xjcin_eval_yr04.pdf | Xjcin_eval_yr04.pdf }} 
{{pdf| Xjcin_eval_yr05.pdf | Xjcin_eval_yr05.pdf }} 
{{pdf| Xjcin_eval_yr06.pdf | Xjcin_eval_yr06.pdf }} 
{{pdf| Xjcin_eval_yr07.pdf | Xjcin_eval_yr07.pdf }} 
{{pdf| Xjcin_eval_yr08.pdf | Xjcin_eval_yr08.pdf }} 
{{pdf| Xjcin_eval_yr09.pdf | Xjcin_eval_yr09.pdf }} 
{{pdf| Xjcin_eval_yr10.pdf | Xjcin_eval_yr10.pdf }} 
|-
|| Evaluation Suite Output (Aerosol)
||
N/A
||
{{pdf| Xjcin_EvalAero_yr01.pdf | Xjcin_EvalAero_yr01.pdf }} 
{{pdf| Xjcin_EvalAero_yr02.pdf | Xjcin_EvalAero_yr02.pdf }} 
{{pdf| Xjcin_EvalAero_yr03.pdf | Xjcin_EvalAero_yr03.pdf }} 
{{pdf| Xjcin_EvalAero_yr04.pdf | Xjcin_EvalAero_yr04.pdf }} 
{{pdf| Xjcin_EvalAero_yr05.pdf | Xjcin_EvalAero_yr05.pdf }} 
{{pdf| Xjcin_EvalAero_yr06.pdf | Xjcin_EvalAero_yr06.pdf }} 
{{pdf| Xjcin_EvalAero_yr07.pdf | Xjcin_EvalAero_yr07.pdf }} 
{{pdf| Xjcin_EvalAero_yr08.pdf | Xjcin_EvalAero_yr08.pdf }} 
{{pdf| Xjcin_EvalAero_yr09.pdf | Xjcin_EvalAero_yr09.pdf }} 
{{pdf| Xjcin_EvalAero_yr10.pdf | Xjcin_EvalAero_yr10.pdf }} 
|- ||
|| NOy species time evolution || {{pdf| Xjcir_NOy.pdf | Xjcir_NOy.pdf }} || {{pdf| Xjcin_NOy_yr01-06.pdf | Xjcin_NOy_yr01-06.pdf }} ||
|-
|| Comparison with SLIMCAT || || {{pdf| Compare_SLIMCAT_UKCA.pdf | Compare_SLIMCAT_UKCA.pdf }} ||
|-
|| Stratospheric Flux Analyis || || || {{pdf|strat_output.pdf | strat_output.pdf }}
|-
|| Lightning NOx
||
year 01 4.31451 Tg(N)/year 
year 02 4.14917 Tg(N)/year 
year 03 4.16817 Tg(N)/year 
year 04 4.17091 Tg(N)/year 
year 05 4.21050 Tg(N)/year 
year 06 4.15449 Tg(N)/year 
year 07 4.24399 Tg(N)/year 
year 08 4.16796 Tg(N)/year 
year 09 4.25567 Tg(N)/year 
year 10 4.19239 Tg(N)/year 
||
year 01 3.93965 Tg(N)/year 
year 02 3.94823 Tg(N)/year 
year 03 4.00135 Tg(N)/year 
year 04 4.00217 Tg(N)/year 
year 05 3.96633 Tg(N)/year 
year 06 3.92943 Tg(N)/year 
year 07 4.02144 Tg(N)/year 
year 08 3.82724 Tg(N)/year 
||
|}

NB The stratospheric analysis pdf file contains a table of the annual sum throughout the stratosphere (moles /yr) for all reactions that produce or destroy a chemical species in the run. The pdf is sorted alphabetically (Br first PPAN at the end).

==Minutes from meeting 2014-02-13==

; Present
: Luke Abraham (NLA), Alex Archibald, James Keeble (JMK), Sandip Dhomse, Paul Griffiths, Martyn Chipperfield, John Pyle, Fiona O'Connor (skype)

; Further experiments suggested
# Change how the NOy species are treated: removed these from transform_halogen and make a new routine which also requires NO2 to be transported. The NOy (i.e. Lumped N) tracer is also advected and this is used as a test against the calculated NOy field from the individual species. Using this comparison the NOy species can be rescaled according to the ratio of <math>NO_{y}^{calculated}</math> and <math>NO_{y}^{advected}</math>. BrONO2 and ClONO2 should not be rescaled as this would change the Cl and Br species. A diagnostic check on the differences between <math>NO_{y}^{calculated}</math> and <math>NO_{y}^{advected}</math> should be done, as well as possibly checking for global conservation during transport. The NALD tracer is not currently included and should be. (NLA to do)
# Further to the above, try turning off all other processes and check the advection over a short run. Other steps could then be added piecewise to see their effects.
# Check that N2O5 is not causing any problems by setting its rates to zero and set it to no_change in transform_halogen (JMK to do)

==Sensitivity tests==

NLA has performed several sensitivity tests following the meeting and the recommendations above.

Note that for the plots below, NOy was calculated by summing up all the other species in post-processing.

An example of the problem is:

[[Image:Xkawa_HNO3.png]]

====Changes required to below plots====

The plots below are rather confusing, and there are a lot of them. The following changes will be made, but unfortunately not for the teleconference on the 15th December:

# Change the units so that all species are plotted in kg(N). Currently all plots are in kg(Species) except for NOy.
# Include the initial value from the .astart file in the plots, to give the initial condition. This should highlight some of the strange behaviour in NOy.

The results from these tests are:

===1. transform_nitrogen routine===

The NOy components of transform_halogen were removed, and implemented in a separate routine. Now, NO2 and lumped NOy are also advected and instead of NO2 being the residual instead a ''calculated_NOy'' field is computed from the separately advected NOy species, and this is compared to the ''transported_NOy'' field. The differences here are then used to tweak the NOy species that all allowed to be changed by the routine (currently, not ClONO2 and BrONO2). This is job '''xjcis'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N).

[[Image:Base_NOy.png|400px]]

The model is still spinning up slightly from the initial condition.

===2. Doubled HNO3===

A copy of xjcis (and so transform_nitrogen was still used) was taken and the HNO3 initial condition was doubled (contribution also included in NOy) to bring the values up to what should be expected. This is job '''xjcit'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N), and the shorter x-axis.

[[Image:HNO3x2_NOy.png|400px]]

The run was stop after only a few years as the HNO3 mass dropped rather quickly. The NOy mass also drops.

===3. No production or loss of any NOy species===

A copy of xjcit was taken (i.e. including the doubled HNO3 initial condition and using tranform_nitrogen). All sources and sinks of any NOy species were removed, i.e. no deposition, emissions, or sedimentation. All reactions were still included if they interconverted between NOy species, but any reactions which produced or removed NOy were not included. This is job '''xjciv'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N).

[[Image:NoSourceSink_NOy.png|400px]]

There is some interesting structure in the evolution of several of the species. These can be highlighted if required. While a lot of the species seem to have an exponential decay, others do not.

All plots from this run can be found here: {{pdf|NoSourceSink_xjciv.pdf|NoSourceSink_xjciv.pdf}}

===4. No calls to any UKCA routines===

A copy of xjciv was taken (including the doubled HNO3 initial condition), and calls to the transform_halogen/nitrogen, fastjx, emission_ctl, chemistry_ctl, and aero_ctl routines were removed. This is job '''xkqhb'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N), and the shorter x-axis.

[[Image:NoEmsChemAero_NOy.png|400px]]

This is as expected. The tracer transport scheme '''should''' be globally mass conserving, and it is. If it were not we would have had a bigger problem! This test also confirms that the problem is contained within UKCA itself.

All plots from this run can be found here: {{pdf|NoEmsChemAero_xkqhb.pdf|NoEmsChemAero_xkqhb.pdf}}

===5. Call to ukca_emission_ctl only===

A copy of xkqhb was taken (including the doubled HNO3 initial condition), and call to emission_ctl was included again (there were still no calls to the transform_halogen/nitrogen, fastjx, chemistry_ctl, and aero_ctl). Note that there were no emissions into any of the NOy species in this run. This is job '''xkqhc'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N), and the shorter x-axis.

[[Image:EmsOnly_NOy.png|400px]]

As well as showing that the emission_ctl routine isn't causing the problem, this also shows that it isn't coming from boundary layer mixing, either, as this is done in emission_ctl for the section 34 (UKCA) tracers.

===6. Call to transform_halogen and transform_nitrogen only===

A copy of xkqhb was taken (including the doubled HNO3 initial condition), and the forward and backward calls to transform_halogen and transform_nitrogen were included again (there were still no calls to the emission_ctl fastjx, chemistry_ctl, and aero_ctl). This is job '''xkqhd'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N), and the shorter x-axis.

[[Image:TransOnly_NOy.png|400px]]

There are some corrections to the NOy species initially (these probably go down as the horizontal gradients are smoothed out during the run). However, NOy remains mostly constant and does not drop by very much.

All plots from this run can be found here: {{pdf|TransOnly_xkqhd.pdf|TransOnly_xkqhd.pdf}}

===7. Call to transform_halogen, transform_nitrogen, and chemistry_ctl only===

A copy of xkqhd was taken (including the doubled HNO3 initial condition), and, as well as the forward and backward calls to transform_halogen and transform_nitrogen, the call to chemistry_ctl was included again (there were still no calls to the emission_ctl fastjx, and aero_ctl). While FastJX was not used (the rates from this routine were set to zero), there is still a contribution to the photolysis rates from the lookup table scheme in the upper levels of the model. This is job '''xkqhe'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N), and the shorter x-axis.

[[Image:TransChemOnly_NOy.png|400px]]

There should be changes to the NOy species, which may involve them increasing or decreasing during the course of the run. The important thing here is that NOy changes as well.

As there is no photolysis or emissions, the evolution is different from the original ''no sources or sinks'' run. This implies that the problem is in chemistry_ctl, or in the combination of chemistry_ctl '''and''' transform_nitrogen.

Looking at the figures below for NOy and N2O5 in more detail, it appears that the drop in both is highly correlated (after the first few months), more-so than with other species. Note the different scales on the y-axis.

Also, the initial mass of NOy seems around 25% higher in this run than in the other runs, despite the fact that they all started from the same initial condition. It is unclear why the value is higher here.

[[Image:Xkhqe_NOy.png|400px]][[Image:Xkhqe_N2O5.png|400px]]

===8. Call to transform_halogen and chemistry_ctl only===

A copy of xkqhe was taken (including the doubled HNO3 initial condition), and the calls to transform_nitrogen were removed. The forward and backward calls to transform_halogen and chemistry_ctl were still included (there were still no calls to the emission_ctl fastjx, and aero_ctl). The photolysis rates were completely set to zero in this simulation. This is job '''xkqhf'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N), and the shorter x-axis.

[[Image:ChemOnly_NOy.png|400px]]

As above (xkqhe), there should be changes to the NOy species, which may involve them increasing or decreasing during the course of the run. The important thing here is that NOy changes as well.

As there is no photolysis or emissions, the evolution is different from the original ''no sources or sinks'' run. Given that transform_nitrogen is not called in this run, this implies that the problem is in chemistry_ctl alone, and is not associated with photolysis.

Looking at the figures below for NOy and N2O5 in more detail, it appears that the drop in both is still highly correlated (after the first few months), more-so than with other species. Note the different scales on the y-axis.

Also, the initial mass of NOy still seems around 25% higher in this run than in the other runs, despite the fact that they all started from the same initial condition. It is unclear why the value is higher here, but it is not associated with transform_nitrogen.

[[Image:Xkhqf_NOy.png|400px]][[Image:Xkhqf_N2O5.png|400px]]

All plots can be found here: {{pdf|ChemOnly_xkqhf.pdf|ChemOnly_xkqhf.pdf}}

===9. Call to transform_halogen and chemistry_ctl (with no call to asad_trimol) only===

A copy of xkqhf was taken (including the doubled HNO3 initial condition). The forward and backward calls to transform_halogen and chemistry_ctl were still included (there were still no calls to the transform_nitrogen, emission_ctl fastjx, and aero_ctl). The photolysis rates were completely set to zero in this simulation. The call to asad_trimol was commended out in asad_cdrive, which means that there will be no termolecular reactions at all in this simulation. This is job '''xkqhg'''.

[[Image:NoTrimol_NOy.png|400px]]

[[Image:Xkhqg_NOy.png|400px]][[Image:Xkhqg_N2O5.png|400px]]

All plots from this run can be found here: {{pdf|NoTrimol_xkqhg.pdf|NoTrimol_xkqhg.pdf}}

===10. Call to transform_halogen and chemistry_ctl (with no call to hetero routines) only===

A copy of xkqhg was taken (including the doubled HNO3 initial condition). The forward and backward calls to transform_halogen and chemistry_ctl were still included (there were still no calls to the transform_nitrogen, emission_ctl fastjx, and aero_ctl). The photolysis rates were completely set to zero in this simulation. The call to asad_trimol was put back in in asad_cdrive, but all heterogeneous routines in asad_cdrive were commented out. This is job '''xkqhh'''.

[[Image:NoHetero_NOy.png|400px]]

[[Image:Xkqhh_NOy.png|400px]][[Image:Xkqhh_N2O5.png|400px]]

All plots from this run can be found here: {{pdf|NoHetero_xkqhh.pdf|NoHetero_xkqhh.pdf}}

===11. Call to transform_halogen and chemistry_ctl (with no call to ukca_wetdep) only===

A copy of xkqhh was taken (including the doubled HNO3 initial condition). The forward and backward calls to transform_halogen and chemistry_ctl were still included (there were still no calls to the transform_nitrogen, emission_ctl fastjx, and aero_ctl). The photolysis rates were completely set to zero in this simulation. The calls to the heterogeneous routines in asad_cdrive were put back in, but the call to ukca_wetdep was commented out, meaning that there will be no wet deposition of any species. This is job '''xkqhi'''.

[[Image:NoWetDep_NOy.png|400px]]

[[Image:Xkqhi_NOy.png|400px]][[Image:Xkqhi_N2O5.png|400px]]

All plots from this run can be found here: {{pdf|NoWetDep_xkqhi.pdf|NoWetDep_xkqhi.pdf}}

===12. Call to transform_halogen and chemistry_ctl (with no call to ukca_drydep) only===

A copy of xkqhi was taken (including the doubled HNO3 initial condition). The forward and backward calls to transform_halogen and chemistry_ctl were still included (there were still no calls to the transform_nitrogen, emission_ctl fastjx, and aero_ctl). The photolysis rates were completely set to zero in this simulation. The call to ukca_wetdep in asad_cdrive was put back in, but the call to ukca_drydep was commented out, meaning that there will be no wet deposition of any species. This is job '''xkqhj'''.

[[Image:NoDryDep_NOy.png|400px]]

[[Image:Xkqhj_NOy.png|400px]][[Image:Xkqhj_N2O5.png|400px]]

All plots from this run can be found here: {{pdf|NoDryDep_xkqhj.pdf|NoDryDep_xkqhj.pdf}}

===Planned Tests===

There are a number of planned tests:

# Double N2O+(O1D) rate as done at vn7.3
# Run the NoSourceSink (xjciv) in 2 new ways:
## Set all rates of NOy involved reactions to zero
## Remove all NOy involved reactions

The latter two should give equivalent results, assuming that there is no overwriting being done in asad_bimol or asad_trimol.

File:Strat output.pdf

2014-12-15T17:26:19Z

Alex: Here are the annual total fluxes (moles) for each reaction (or the major reactions (top 10 etc) that contributes to the production or loss of a compound (e.g. OH, NO2 etc).

Here are the annual total fluxes (moles) for each reaction (or the major reactions (top 10 etc) that contributes to the production or loss of a compound (e.g. OH, NO2 etc).

NOy PEG

2014-12-15T17:24:03Z

Alex: /* Results */

==vn7.3 vs. vn8.4==

While UKCA had low NOy at vn7.3, this feature has not improved when moving to vn8.2/vn8.4 GA4.0 jobs, and may even have become worse.

A pair of simulations have been set-up to try to aid the diagnosis of the cause of this low NOy. While there have been many changes to the base atmospheric model, the differences between the UKCA chemistry scheme used have been minimised.

* All surface and aircraft chemical emissions are the same between both jobs, and are year 2000 climatologies
* The SST/Sea-Ice ancillaries are daily means from the Reynolds dataset, and are meaned over 1995-2005
* All chemical reactions and associated rates are the same between both jobs
* The GHGs and tracer lower boundary conditions are the same for both jobs
** 2000-12-01 from the CCMI REF-C2 specification taking WMO2011 values for ODSs and following the historical values for GHGs from the RCP scenarios defined for CMIP5
* The initial conditions of the chemical species are the same for both jobs, originally taken from a vn7.3 job. The winds and other physical initial conditions are different however
* Radiative feedback from O3 is included in both jobs
** vn8.4 job also considers radiative feedback from aerosols
* The same lightning NOx routine were used by both models, and these were scaled to give approximately the same annual emissions

'''NOTE:''' While the vn8.4 job does include GLOMAP-mode aerosols and some extra associated chemical reactions, the low NOy has also been observed in the vn8.2 CheST (only) configuration.

==Results==
{| border="1" style="background-color:white" cellpadding="10"
|-
|| || VN7.3 || VN8.4 || VN7.3
|-
|| MONSooN jobid || xjcir || xjcin || xgywn
|-
|| Configuration || HadGEM3-A r2.0 || HadGEM3-A GA4.0 || HadGEM3-A r2.0 (ish)
|-
|| Resolution || N48L60 || N96L85 || N48L60
|-
|| UKCA scheme || CheST || CheST+GLOMAP || CheST
|-
|| Model set-up || TS2000 || TS2000 || TS2000
|-
|| Evaluation Suite Output (Chemistry)
||
{{pdf| Xjcir_eval_yr01.pdf | Xjcir_eval_yr01.pdf }} 
{{pdf| Xjcir_eval_yr02.pdf | Xjcir_eval_yr02.pdf }} 
{{pdf| Xjcir_eval_yr03.pdf | Xjcir_eval_yr03.pdf }} 
{{pdf| Xjcir_eval_yr04.pdf | Xjcir_eval_yr04.pdf }} 
{{pdf| Xjcir_eval_yr05.pdf | Xjcir_eval_yr05.pdf }} 
{{pdf| Xjcir_eval_yr06.pdf | Xjcir_eval_yr06.pdf }} 
{{pdf| Xjcir_eval_yr07.pdf | Xjcir_eval_yr07.pdf }} 
{{pdf| Xjcir_eval_yr08.pdf | Xjcir_eval_yr08.pdf }} 
{{pdf| Xjcir_eval_yr09.pdf | Xjcir_eval_yr09.pdf }} 
{{pdf| Xjcir_eval_yr10.pdf | Xjcir_eval_yr10.pdf }}
||
{{pdf| Xjcin_eval_yr01.pdf | Xjcin_eval_yr01.pdf }} 
{{pdf| Xjcin_eval_yr02.pdf | Xjcin_eval_yr02.pdf }} 
{{pdf| Xjcin_eval_yr03.pdf | Xjcin_eval_yr03.pdf }} 
{{pdf| Xjcin_eval_yr04.pdf | Xjcin_eval_yr04.pdf }} 
{{pdf| Xjcin_eval_yr05.pdf | Xjcin_eval_yr05.pdf }} 
{{pdf| Xjcin_eval_yr06.pdf | Xjcin_eval_yr06.pdf }} 
{{pdf| Xjcin_eval_yr07.pdf | Xjcin_eval_yr07.pdf }} 
{{pdf| Xjcin_eval_yr08.pdf | Xjcin_eval_yr08.pdf }} 
{{pdf| Xjcin_eval_yr09.pdf | Xjcin_eval_yr09.pdf }} 
{{pdf| Xjcin_eval_yr10.pdf | Xjcin_eval_yr10.pdf }} 
|-
|| Evaluation Suite Output (Aerosol)
||
N/A
||
{{pdf| Xjcin_EvalAero_yr01.pdf | Xjcin_EvalAero_yr01.pdf }} 
{{pdf| Xjcin_EvalAero_yr02.pdf | Xjcin_EvalAero_yr02.pdf }} 
{{pdf| Xjcin_EvalAero_yr03.pdf | Xjcin_EvalAero_yr03.pdf }} 
{{pdf| Xjcin_EvalAero_yr04.pdf | Xjcin_EvalAero_yr04.pdf }} 
{{pdf| Xjcin_EvalAero_yr05.pdf | Xjcin_EvalAero_yr05.pdf }} 
{{pdf| Xjcin_EvalAero_yr06.pdf | Xjcin_EvalAero_yr06.pdf }} 
{{pdf| Xjcin_EvalAero_yr07.pdf | Xjcin_EvalAero_yr07.pdf }} 
{{pdf| Xjcin_EvalAero_yr08.pdf | Xjcin_EvalAero_yr08.pdf }} 
{{pdf| Xjcin_EvalAero_yr09.pdf | Xjcin_EvalAero_yr09.pdf }} 
{{pdf| Xjcin_EvalAero_yr10.pdf | Xjcin_EvalAero_yr10.pdf }} 
|- ||
|| NOy species time evolution || {{pdf| Xjcir_NOy.pdf | Xjcir_NOy.pdf }} || {{pdf| Xjcin_NOy_yr01-06.pdf | Xjcin_NOy_yr01-06.pdf }} ||
|-
|| Comparison with SLIMCAT || || {{pdf| Compare_SLIMCAT_UKCA.pdf | Compare_SLIMCAT_UKCA.pdf }} ||
|-
|| Stratospheric Flux Analyis || || || {{pdf|strat_output.pdf | strat_output.pdf }}
|-
|| Lightning NOx
||
year 01 4.31451 Tg(N)/year 
year 02 4.14917 Tg(N)/year 
year 03 4.16817 Tg(N)/year 
year 04 4.17091 Tg(N)/year 
year 05 4.21050 Tg(N)/year 
year 06 4.15449 Tg(N)/year 
year 07 4.24399 Tg(N)/year 
year 08 4.16796 Tg(N)/year 
year 09 4.25567 Tg(N)/year 
year 10 4.19239 Tg(N)/year 
||
year 01 3.93965 Tg(N)/year 
year 02 3.94823 Tg(N)/year 
year 03 4.00135 Tg(N)/year 
year 04 4.00217 Tg(N)/year 
year 05 3.96633 Tg(N)/year 
year 06 3.92943 Tg(N)/year 
year 07 4.02144 Tg(N)/year 
year 08 3.82724 Tg(N)/year 
||
|}

==Minutes from meeting 2014-02-13==

; Present
: Luke Abraham (NLA), Alex Archibald, James Keeble (JMK), Sandip Dhomse, Paul Griffiths, Martyn Chipperfield, John Pyle, Fiona O'Connor (skype)

; Further experiments suggested
# Change how the NOy species are treated: removed these from transform_halogen and make a new routine which also requires NO2 to be transported. The NOy (i.e. Lumped N) tracer is also advected and this is used as a test against the calculated NOy field from the individual species. Using this comparison the NOy species can be rescaled according to the ratio of <math>NO_{y}^{calculated}</math> and <math>NO_{y}^{advected}</math>. BrONO2 and ClONO2 should not be rescaled as this would change the Cl and Br species. A diagnostic check on the differences between <math>NO_{y}^{calculated}</math> and <math>NO_{y}^{advected}</math> should be done, as well as possibly checking for global conservation during transport. The NALD tracer is not currently included and should be. (NLA to do)
# Further to the above, try turning off all other processes and check the advection over a short run. Other steps could then be added piecewise to see their effects.
# Check that N2O5 is not causing any problems by setting its rates to zero and set it to no_change in transform_halogen (JMK to do)

==Sensitivity tests==

NLA has performed several sensitivity tests following the meeting and the recommendations above.

Note that for the plots below, NOy was calculated by summing up all the other species in post-processing.

An example of the problem is:

[[Image:Xkawa_HNO3.png]]

====Changes required to below plots====

The plots below are rather confusing, and there are a lot of them. The following changes will be made, but unfortunately not for the teleconference on the 15th December:

# Change the units so that all species are plotted in kg(N). Currently all plots are in kg(Species) except for NOy.
# Include the initial value from the .astart file in the plots, to give the initial condition. This should highlight some of the strange behaviour in NOy.

The results from these tests are:

===1. transform_nitrogen routine===

The NOy components of transform_halogen were removed, and implemented in a separate routine. Now, NO2 and lumped NOy are also advected and instead of NO2 being the residual instead a ''calculated_NOy'' field is computed from the separately advected NOy species, and this is compared to the ''transported_NOy'' field. The differences here are then used to tweak the NOy species that all allowed to be changed by the routine (currently, not ClONO2 and BrONO2). This is job '''xjcis'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N).

[[Image:Base_NOy.png|400px]]

The model is still spinning up slightly from the initial condition.

===2. Doubled HNO3===

A copy of xjcis (and so transform_nitrogen was still used) was taken and the HNO3 initial condition was doubled (contribution also included in NOy) to bring the values up to what should be expected. This is job '''xjcit'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N), and the shorter x-axis.

[[Image:HNO3x2_NOy.png|400px]]

The run was stop after only a few years as the HNO3 mass dropped rather quickly. The NOy mass also drops.

===3. No production or loss of any NOy species===

A copy of xjcit was taken (i.e. including the doubled HNO3 initial condition and using tranform_nitrogen). All sources and sinks of any NOy species were removed, i.e. no deposition, emissions, or sedimentation. All reactions were still included if they interconverted between NOy species, but any reactions which produced or removed NOy were not included. This is job '''xjciv'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N).

[[Image:NoSourceSink_NOy.png|400px]]

There is some interesting structure in the evolution of several of the species. These can be highlighted if required. While a lot of the species seem to have an exponential decay, others do not.

All plots from this run can be found here: {{pdf|NoSourceSink_xjciv.pdf|NoSourceSink_xjciv.pdf}}

===4. No calls to any UKCA routines===

A copy of xjciv was taken (including the doubled HNO3 initial condition), and calls to the transform_halogen/nitrogen, fastjx, emission_ctl, chemistry_ctl, and aero_ctl routines were removed. This is job '''xkqhb'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N), and the shorter x-axis.

[[Image:NoEmsChemAero_NOy.png|400px]]

This is as expected. The tracer transport scheme '''should''' be globally mass conserving, and it is. If it were not we would have had a bigger problem! This test also confirms that the problem is contained within UKCA itself.

All plots from this run can be found here: {{pdf|NoEmsChemAero_xkqhb.pdf|NoEmsChemAero_xkqhb.pdf}}

===5. Call to ukca_emission_ctl only===

A copy of xkqhb was taken (including the doubled HNO3 initial condition), and call to emission_ctl was included again (there were still no calls to the transform_halogen/nitrogen, fastjx, chemistry_ctl, and aero_ctl). Note that there were no emissions into any of the NOy species in this run. This is job '''xkqhc'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N), and the shorter x-axis.

[[Image:EmsOnly_NOy.png|400px]]

As well as showing that the emission_ctl routine isn't causing the problem, this also shows that it isn't coming from boundary layer mixing, either, as this is done in emission_ctl for the section 34 (UKCA) tracers.

===6. Call to transform_halogen and transform_nitrogen only===

A copy of xkqhb was taken (including the doubled HNO3 initial condition), and the forward and backward calls to transform_halogen and transform_nitrogen were included again (there were still no calls to the emission_ctl fastjx, chemistry_ctl, and aero_ctl). This is job '''xkqhd'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N), and the shorter x-axis.

[[Image:TransOnly_NOy.png|400px]]

There are some corrections to the NOy species initially (these probably go down as the horizontal gradients are smoothed out during the run). However, NOy remains mostly constant and does not drop by very much.

All plots from this run can be found here: {{pdf|TransOnly_xkqhd.pdf|TransOnly_xkqhd.pdf}}

===7. Call to transform_halogen, transform_nitrogen, and chemistry_ctl only===

A copy of xkqhd was taken (including the doubled HNO3 initial condition), and, as well as the forward and backward calls to transform_halogen and transform_nitrogen, the call to chemistry_ctl was included again (there were still no calls to the emission_ctl fastjx, and aero_ctl). While FastJX was not used (the rates from this routine were set to zero), there is still a contribution to the photolysis rates from the lookup table scheme in the upper levels of the model. This is job '''xkqhe'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N), and the shorter x-axis.

[[Image:TransChemOnly_NOy.png|400px]]

There should be changes to the NOy species, which may involve them increasing or decreasing during the course of the run. The important thing here is that NOy changes as well.

As there is no photolysis or emissions, the evolution is different from the original ''no sources or sinks'' run. This implies that the problem is in chemistry_ctl, or in the combination of chemistry_ctl '''and''' transform_nitrogen.

Looking at the figures below for NOy and N2O5 in more detail, it appears that the drop in both is highly correlated (after the first few months), more-so than with other species. Note the different scales on the y-axis.

Also, the initial mass of NOy seems around 25% higher in this run than in the other runs, despite the fact that they all started from the same initial condition. It is unclear why the value is higher here.

[[Image:Xkhqe_NOy.png|400px]][[Image:Xkhqe_N2O5.png|400px]]

===8. Call to transform_halogen and chemistry_ctl only===

A copy of xkqhe was taken (including the doubled HNO3 initial condition), and the calls to transform_nitrogen were removed. The forward and backward calls to transform_halogen and chemistry_ctl were still included (there were still no calls to the emission_ctl fastjx, and aero_ctl). The photolysis rates were completely set to zero in this simulation. This is job '''xkqhf'''.

The image below shows the evolution of the total atmospheric mass of each of the NOy species, in kg(species). Note that NOy is given in kg(N), and the shorter x-axis.

[[Image:ChemOnly_NOy.png|400px]]

As above (xkqhe), there should be changes to the NOy species, which may involve them increasing or decreasing during the course of the run. The important thing here is that NOy changes as well.

As there is no photolysis or emissions, the evolution is different from the original ''no sources or sinks'' run. Given that transform_nitrogen is not called in this run, this implies that the problem is in chemistry_ctl alone, and is not associated with photolysis.

Looking at the figures below for NOy and N2O5 in more detail, it appears that the drop in both is still highly correlated (after the first few months), more-so than with other species. Note the different scales on the y-axis.

Also, the initial mass of NOy still seems around 25% higher in this run than in the other runs, despite the fact that they all started from the same initial condition. It is unclear why the value is higher here, but it is not associated with transform_nitrogen.

[[Image:Xkhqf_NOy.png|400px]][[Image:Xkhqf_N2O5.png|400px]]

All plots can be found here: {{pdf|ChemOnly_xkqhf.pdf|ChemOnly_xkqhf.pdf}}

===9. Call to transform_halogen and chemistry_ctl (with no call to asad_trimol) only===

A copy of xkqhf was taken (including the doubled HNO3 initial condition). The forward and backward calls to transform_halogen and chemistry_ctl were still included (there were still no calls to the transform_nitrogen, emission_ctl fastjx, and aero_ctl). The photolysis rates were completely set to zero in this simulation. The call to asad_trimol was commended out in asad_cdrive, which means that there will be no termolecular reactions at all in this simulation. This is job '''xkqhg'''.

[[Image:NoTrimol_NOy.png|400px]]

[[Image:Xkhqg_NOy.png|400px]][[Image:Xkhqg_N2O5.png|400px]]

All plots from this run can be found here: {{pdf|NoTrimol_xkqhg.pdf|NoTrimol_xkqhg.pdf}}

===10. Call to transform_halogen and chemistry_ctl (with no call to hetero routines) only===

A copy of xkqhg was taken (including the doubled HNO3 initial condition). The forward and backward calls to transform_halogen and chemistry_ctl were still included (there were still no calls to the transform_nitrogen, emission_ctl fastjx, and aero_ctl). The photolysis rates were completely set to zero in this simulation. The call to asad_trimol was put back in in asad_cdrive, but all heterogeneous routines in asad_cdrive were commented out. This is job '''xkqhh'''.

[[Image:NoHetero_NOy.png|400px]]

[[Image:Xkqhh_NOy.png|400px]][[Image:Xkqhh_N2O5.png|400px]]

All plots from this run can be found here: {{pdf|NoHetero_xkqhh.pdf|NoHetero_xkqhh.pdf}}

===11. Call to transform_halogen and chemistry_ctl (with no call to ukca_wetdep) only===

A copy of xkqhh was taken (including the doubled HNO3 initial condition). The forward and backward calls to transform_halogen and chemistry_ctl were still included (there were still no calls to the transform_nitrogen, emission_ctl fastjx, and aero_ctl). The photolysis rates were completely set to zero in this simulation. The calls to the heterogeneous routines in asad_cdrive were put back in, but the call to ukca_wetdep was commented out, meaning that there will be no wet deposition of any species. This is job '''xkqhi'''.

[[Image:NoWetDep_NOy.png|400px]]

[[Image:Xkqhi_NOy.png|400px]][[Image:Xkqhi_N2O5.png|400px]]

All plots from this run can be found here: {{pdf|NoWetDep_xkqhi.pdf|NoWetDep_xkqhi.pdf}}

===12. Call to transform_halogen and chemistry_ctl (with no call to ukca_drydep) only===

A copy of xkqhi was taken (including the doubled HNO3 initial condition). The forward and backward calls to transform_halogen and chemistry_ctl were still included (there were still no calls to the transform_nitrogen, emission_ctl fastjx, and aero_ctl). The photolysis rates were completely set to zero in this simulation. The call to ukca_wetdep in asad_cdrive was put back in, but the call to ukca_drydep was commented out, meaning that there will be no wet deposition of any species. This is job '''xkqhj'''.

[[Image:NoDryDep_NOy.png|400px]]

[[Image:Xkqhj_NOy.png|400px]][[Image:Xkqhj_N2O5.png|400px]]

All plots from this run can be found here: {{pdf|NoDryDep_xkqhj.pdf|NoDryDep_xkqhj.pdf}}

===Planned Tests===

There are a number of planned tests:

# Double N2O+(O1D) rate as done at vn7.3
# Run the NoSourceSink (xjciv) in 2 new ways:
## Set all rates of NOy involved reactions to zero
## Remove all NOy involved reactions

The latter two should give equivalent results, assuming that there is no overwriting being done in asad_bimol or asad_trimol.

Publications

2014-08-19T15:15:51Z

Alex: /* 2014 */

==List of UKCA Publications==

Here is a list of Publications (by year) which use the UKCA Model:

== 2014 ==
* [http://www.atmos-chem-phys.net/14/6369/2014/acp-14-6369-2014.html The importance of vertical velocity variability for estimates of the indirect aerosol effects] West, R. E. L., Stier, P., Jones, A., Johnson, C. E., Mann, G. W., Bellouin, N., Partridge, D. G., and Kipling, Z.: The importance of vertical velocity variability for estimates of the indirect aerosol effects, Atmos. Chem. Phys., 14, 6369-6393, doi:10.5194/acp-14-6369-2014, 2014.
* [http://http://www.atmos-chem-phys.net/14/6035/2014/acp-14-6035-2014.html Heterogeneous reaction of N2O5 with airborne TiO2 particles and its implication for stratospheric particle injection] Tang, M. J., Telford, P. J., Pope, F. D., Rkiouak, L., Abraham, N. L., Archibald, A. T., Braesicke, P., Pyle, J. A., McGregor, J., Watson, I. M., Cox, R. A., and Kalberer, M.: Heterogeneous reaction of N2O5 with airborne TiO2 particles and its implication for stratospheric particle injection, Atmos. Chem. Phys., 14, 6035-6048, 2014.
* [http://http://www.atmos-chem-phys.net/14/1011/2014/acp-14-1011-2014.html Influence of future climate and cropland expansion on isoprene emissions and tropospheric ozone] Squire, O. J., Archibald, A. T., Abraham, N. L., Beerling, D. J., Hewitt, C. N., Lathière, J., Pike, R. C., Telford, P. J., and Pyle, J. A. Atmos. Chem. Phys., 14, 1011-1024, doi:10.5194/acp-14-1011-2014, 2014.
* [http://www.geosci-model-dev.net/7/41/2014/gmd-7-41-2014.html Evaluation of the new UKCA climate-composition model. Part II. The troposphere]. F.M. O'Connor, C.E. Johnson, O. Morgenstern, N.L. Abraham, P. Braesicke, M. Dalvi, G.A. Folberth, M.G. Sanderson, P.J. Telford, A. Voulgarakis, P.J. Young, G. Zeng, W.J. Collins, and J.A. Pyle, Geosci. Model Dev., 7, 41-91, 2014.
* [http://www.atmos-chem-phys.net/14/3899/2014/acp-14-3899-2014.html Representing ozone extremes in European megacities: the importance of resolution in a global chemistry climate model] Stock, Z. S., Russo, M. R., and Pyle, J. A., Atmos. Chem. Phys., 14, 3899-3912, doi:10.5194/acp-14-3899-2014, 2014.

== 2013 ==
* [http://www.atmos-chem-phys.net/13/3027/2013/acp-13-3027-2013.pdf Impact of the modal aerosol scheme GLOMAP-mode on aerosol forcing in the Hadley Centre Global Environmental Model]. N. Bellouin, G. W. Mann, M. T. Woodhouse, C. Johnson, K. S. Carslaw, and M. Dalvi, Atmos. Chem. Phys., 13, 3027-3044, doi:10.5194/acp-13-3027-2013, 2013.
* [http://www.atmos-chem-phys-discuss.net/13/8455/2013/acpd-13-8455-2013.html Consistent circulation differences in the Southern Hemisphere caused by ozone changes: a chemistry-climate model and observational study] Braesicke, P., Keeble, J., Yang, X., Stiller, G., Kellmann, S., Abraham, N. L., Archibald, A. T., Telford, P., and Pyle, J. A. Atmos. Chem. Phys. Discuss., 13, 8455-8487, doi:10.5194/acpd-13-8455-2013, 2013.
* [http://www.atmos-chem-phys.net/13/5969/2013/acp-13-5969-2013.html Constraints on aerosol processes in climate models from vertically-resolved aircraft observations of black carbon]. Z. Kipling, P. Stier, J. P. Schwarz, A. E. Perring, J. R. Spackman, G. W. Mann, C. E. Johnson, and P. J. Telford, Atmos. Chem. Phys., 13, 5969-5986, doi:10.5194/acp-13-5969-2013, 2013.
* [http://onlinelibrary.wiley.com/doi/10.1029/2012JD018382/ Impacts of climate change, ozone recovery, and increasing methane on surface ozone and the tropospheric oxidizing capacity] Olaf Morgenstern, Guang Zeng, N. Luke Abraham, Paul J. Telford, Peter Braesicke, John A. Pyle, Steven C. Hardiman, Fiona M. O'Connor, Colin E. Johnson, Journal of Geophysical Research: Atmospheres Volume 118, Issue 2, pages 1028–1041, 27 January 2013
* [http://www.geosci-model-dev-discuss.net/6/1743/2013/gmdd-6-1743-2013.html Evaluation of the new UKCA climate-composition model. Part II. The troposphere]. F.M. O'Connor, C.E. Johnson, O. Morgenstern, N.L. Abraham, P. Braesicke, M. Dalvi, G.A. Folberth, M.G. Sanderson, P.J. Telford, P.J. Young, G. Zeng, W.J. Collins, and J.A. Pyle, Geosci. Model Dev. Disc., 6, 1743-1857, 2013.
* [http://www.geosci-model-dev.net/6/353/2013/gmd-6-353-2013.html Air quality modelling using the Met Office Unified Model (AQUM OS24-26): model description and initial evaluation]. Savage, N. H., Agnew, P., Davis, L. S., Ordóñez, C., Thorpe, R., Johnson, C. E., O'Connor, F. M., and Dalvi, M., Geosci. Model Dev., 6, 353-372, doi:10.5194/gmd-6-353-2013, 2013.
* [http://www.atmos-chem-phys-discuss.net/13/18307/2013/acpd-13-18307-2013.html Influence of future climate and cropland expansion on isoprene emissions and tropospheric ozone] Squire, O. J., Archibald, A. T., Beerling, D. J., Hewitt, C. N., Lathière, J., Pike, R. C., Telford, P. J., and Pyle, J. A. Atmos. Chem. Phys. Discuss., 13, 18307-18344, doi:10.5194/acpd-13-18307-2013, 2013.
* [http://www.atmos-chem-phys.net/13/12215/2013/acp-13-12215-2013.html Modelling the impact of megacities on local, regional and global tropospheric ozone and the deposition of nitrogen species]. Stock, Z. S., Russo, M. R., Butler, T. M., Archibald, A. T., Lawrence, M. G., Telford, P. J., Abraham, N. L., and Pyle, J. A. Atmos. Chem. Phys., 13, 12215-12231, doi:10.5194/acp-13-12215-2013, 2013.
* [http://www.atmos-chem-phys-discuss.net/13/27423/2013/acpd-13-27423-2013.html Representing ozone extremes in European megacities: the importance of resolution in a global chemistry climate model]. Stock, Z. S., Russo, M. R., and Pyle, J. A. Atmos. Chem. Phys. Discuss., 13, 27423-27458, doi:10.5194/acpd-13-27423-2013, 2013.
* [http://www.geosci-model-dev.net/6/161/2013/gmd-6-161-2013.html Implementation of the Fast-JX Photolysis scheme (v6.4) into the UKCA component of the MetUM chemistry-climate model (v7.3)]. P. J. Telford, N. L. Abraham, A. T. Archibald, P. Braesicke, M. Dalvi, O. Morgenstern, F. M. O'Connor, N. A. D. Richards, and J. A. Pyle. Geosci. Model Dev., 6, 161-177, 2013.
* [http://www.atmos-chem-phys.net/13/2723/2013/acp-13-2723-2013.html Sensitivity of cloud condensation nuclei to regional changes in dimethyl-sulphide emissions]. M. T. Woodhouse, G. W. Mann, K. S. Carslaw and O. Boucher, Atmos. Chem. Phys., 13, 2723-2733. doi: 10.5194/acp-13-2723-2013, 2013.

== 2012 ==

* [http://www.atmos-chem-phys.net/12/6775/2012/acp-12-6775-2012.html The scavenging processes controlling the seasonal cycle in Arctic sulphate and black carbon aerosol]. J. Browse, K. S. Carslaw, S. R. Arnold, K. Pringle, and O. Boucher, Atmos. Chem. Phys., 12, 6775-6798, 2012.

* [http://www.atmos-chem-phys.net/12/11573/2012/acp-12-11573-2012.html No statistically significant effect of a short-term decrease in the nucleation rate on atmospheric aerosols]. E. M. Dunne, L. A. Lee, C. L. Reddington, and K. S. Carslaw, Atmos. Chem. Phys., 12, 11573-11587, 2012.

* [http://www.agu.org/journals/gl/gl1220/2012GL053401/index.shtml Modelling future changes to the stratospheric source gas injection of biogenic bromocarbons]. Hossaini, R., et al., Geophys. Res. Lett., 39, L20813, 2012.

* [http://www.atmos-chem-phys.net/12/9739/2012/acp-12-9739-2012.html Mapping the uncertainty in global CCN using emulation]. L. A. Lee, K. S. Carslaw, K. J. Pringle, and G. W. Mann, Atmos. Chem. Phys., 12, 9739-9751, 2012

* [http://www.atmos-chem-phys.net/12/4449/2012/acp-12-4449-2012.pdf Intercomparison of modal and sectional aerosol microphysics representations within the same 3-D global chemical transport model]. G. W. Mann, K. S. Carslaw, D. A. Ridley, D. V. Spracklen, K. J. Pringle, J. Merikanto, H. Korhonen, J. P. Schwarz, L. A. Lee, P. T. Manktelow, M. T. Woodhouse, A. Schmidt, T. J. Breider, K. M. Emmerson, C. L. Reddington, M. P. Chipperfield, and S. J. Pickering, Atmos. Chem. Phys., 12, 4449–4476, 2012.

*[http://www.agu.org/journals/jd/jd1222/2012JD018276/ Sensitivity of biogenic isoprene emissions to past, present, and future environmental conditions and implications for atmospheric chemistry]. Pacifico, F., G. A. Folberth, C. D. Jones, S. P. Harrison, and W. J. Collins, J. Geophys. Res., 117, D22302, doi:10.1029/2012JD018276, 2012.

* [http://www.atmos-chem-phys-discuss.net/12/7125/2012/acpd-12-7125-2012.html A multi-model assessment of the efficacy of sea spray geoengineering]. K. J. Pringle, K. S. Carslaw, T. Fan, G.W. Mann, A. Hill, P. Stier, K. Zhang, and H. Tost, Atmos. Chem. Phys. Discuss., 12, 7125-7166, 2012.

* [http://www.atmos-chem-phys-discuss.net/12/26503/2012/acpd-12-26503-2012.pdf The size distribution and mixing state of black carbon aerosol over Europe]. C. L. Reddington, G. McMeeking, G. W. Mann, H. Coe, M. G. Frontoso, D. Liu, M. Flynn, D. V. Spracklen, and K. S. Carslaw, Atmos. Chem. Phys. Discuss., 12, 26503-26560, 2012.

* [http://www.atmos-chem-phys.net/12/7321/2012/acp-12-7321-2012.pdf Importance of tropospheric volcanic aerosol for indirect radiative forcing of climate]. A. Schmidt, K. S. Carslaw, G. W. Mann, A. Rap, K. J. Pringle, D. V. Spracklen, M. Wilson, and P. M. Forster, Atmos. Chem. Phys., 12, 7321-7339, 2012.

* [http://www.atmos-chem-phys-discuss.net/12/27395/2012/acpd-12-27395-2012.pdf Sensitivity of cloud condensation nuclei to regional changes in dimethyl-sulphide emissions]. M. T. Woodhouse, G. W. Mann, K. S. Carslaw, and O. Boucher, Atmos. Chem. Phys. Discuss., 12, 27395-27423, 2012.

==2011==

* [http://www.pnas.org/content/108/38/15710.full.pdf+html Excess mortality in Europe following a future Laki-style Icelandic eruption]. A. Schmidt, B. Ostro, K. S. Carslaw, M. Wilson, T. Thordarson, G. W. Mann and A. J. Simmons, Proceedings of the National Academy of Sciences, USA, vol. 108 ∣ no. 38, pp. 15710–15715, 2011.
* [http://www.atmos-chem-phys.net/11/12253/2011/acp-11-12253-2011.pdf Emulation of a complex global aerosol model to quantify sensitivity to uncertain parameters]. L. A. Lee, K. S. Carslaw, K. J. Pringle, G. W. Mann, and D. V. Spracklen, Atmos. Chem. Phys., 11, 12253-12273, 2011.
* [http://www.agu.org/pubs/crossref/2011/2010GL046520.shtml Impacts of HOx regeneration and recycling in the oxidation of isoprene: Consequences for the composition of past, present and future atmospheres] A. T. Archibald, J. G. Levine, N. L. Abraham, M. C. Cooke, P. M. Edwards, D. E. Heard, M. E. Jenkin, A. Karunaharan, R. C. Pike, P. S. Monks, D. E. Shallcross, P. J. Telford, L. K. Whalley, and J. A. Pyle, Geophys. Res. Lett. , 38 , L05804, doi:10.1029/2010GL046520
* [http://www.agu.org/pubs/crossref/2011/2010GL046228.shtml Ozone concentration changes in the Asian summer monsoon anticyclone and lower stratospheric water vapour: An idealised model study]: ,Braesicke, P., O. J. Smith, P. Telford, and J. A. Pyle (2011), Geophys. Res. Lett., 38, 10.1029/2010GL046228, L03810.
* [http://www.geosci-model-dev.net/4/1051/2011/ Development and evaluation of an Earth-system model - HadGEM2] W. J. Collins, N. Bellouin, M. Doutriaux-Boucher, N. Gedney, P. Halloran, T. Hinton, J. Hughes, C. D. Jones, M. Joshi, S. Liddicoat, G. Martin, F. O'Connor, J. Rae, C. Senior, S. Sitch, I. Totterdell, A. Wiltshire, and S. Woodward, Geosci. Model Dev., 4, 1051-1075, 2011.
* [http://dx.doi.org/10.5194/acp-11-599-2011 Attribution of observed changes in stratospheric ozone and temperature] Gillett, N. P., Akiyoshi, H., Bekki, S., Braesicke, P., Eyring, V., Garcia, R., Karpechko, A. Yu., McLinden, C. A., Morgenstern, O., Plummer, D. A., Pyle, J. A., Rozanov, E., Scinocca, J., and Shibata, K., (2011), Atmos. Chem. Phys., 10.5194/acp-11-599-2011 11, 599-609
* [http://www.geosci-model-dev.net/4/543/2011/ The HadGEM2-ES implementation of CMIP5 centennial simulations] C. D. Jones, J. K. Hughes, N. Bellouin, S. C. Hardiman, G. S. Jones, J. Knight, S. Liddicoat, F. M. O'Connor, R. J. Andres, C. Bell, K.-O. Boo, A. Bozzo, N. Butchart, P. Cadule, K. D. Corbin, M. Doutriaux-Boucher, P. Friedlingstein, J. Gornall, L. Gray, P. R. Halloran, G. Hurtt, W. J. Ingram, J.-F. Lamarque, R. M. Law, M. Meinshausen, S. Osprey, E. J. Palin, L. Parsons Chini, T. Raddatz, M. G. Sanderson, A. A. Sellar, A. Schurer, P. Valdes, N. Wood, S. Woodward, M. Yoshioka, and M. Zerroukat, Geosci. Model Dev., 4, 543-570, 2011.
* [http://www.atmos-chem-phys-discuss.net/11/9057/2011/acpd-11-9057-2011.pdf Large methane releases lead to strong aerosol forcing and reduced cloudiness] T. Kurtén, L. Zhou, R. Makkonen, J. Merikanto, P. Räisänen, M. Boy, N. Richards, A. Rap, S. Smolander, A. Sogachev, A. Guenther, G. W. Mann, K. Carslaw, and M. Kulmala (2011), Atmos. Chem. Phys. Discuss., 11, 9057-9081.
*[http://www.geosci-model-dev.net/4/723/2011/ The HadGEM2 family of Met Office Unified Model climate configurations] The HadGEM2 Development Team: G. M. Martin, Bellouin, N., Collins, W. J., Culverwell, I. D., Halloran, P. R., Hardiman, S. C., Hinton, T. J., Jones, C. D., McDonald, R. E., McLaren, A. J., O'Connor, F. M., Roberts, M. J., Rodriguez, J.M., Woodward, S., Best, M. J., Brooks, M. E., Brown, A. R., Butchart, N., Dearden, C., Derbyshire, S. H., Dharssi, I., Doutriaux-Boucher, M., Edwards, J. M., Falloon, P. D., Gedney, N., Gray, L. J., Hewitt, H. T., Hobson, M., Huddleston, M. R., Hughes, J., Ineson, S., Ingram, W. J., James, P. M., Johns, T. C., Johnson, C. E., Jones, A., Jones, C. P., Joshi, M. M., Keen, A. B., Liddicoat, S., Lock, A. P., Maidens, A. V., Manners, J. C., Milton, S. F., Rae, J. G. L., Ridley, J. K., Sellar, A., Senior, C. A., Totterdell, I. J., Verhoef, A., Vidale, P. L., and Wiltshire, A., Geosci. Model Dev., 4, 723-757, 2011.
* [http://www.atmos-chem-phys.net/11/2765/2011/acp-11-2765-2011.html Representation of tropical deep convection in atmospheric models – Part 1: Meteorology and comparison with satellite observations],Russo, M. R., Marécal, V., Hoyle, C. R., Arteta, J., Chemel, C., Chipperfield, M. P., Dessens, O., Feng, W., Hosking, J. S., Telford, P. J., Wild, O., Yang, X., and Pyle, J. A, Atmos. Chem. Phys., 11, doi:10.5194/acp-11-2765-2011, 2765-2786.
* [http://www.atmos-chem-phys.net/11/8459/2011/acp-11-8459-2011.pdf Minor effect of physical size sorting on iron solubility of transported mineral dust] Z. B. Shi, M. T. Woodhouse, K. S. Carslaw, M. D. Krom, G. W. Mann, A. R. Baker, I. Savov, G. Fones, B. Brooks, T. D. Jickells, and L. G. Benning, Atmos. Chem. Phys., 11, 8459-8469, 2011.
* [http://www.agu.org/pubs/crossref/2011/2010GB003837.shtml Influence of chemical weathering and aging of iron oxides on the potential iron solubility of Saharan dust during simulated atmospheric processing] Z. B. Shi, M. Krom, S. Bonneville, A. R. Baker, C. Bristow, N. Drake, G. W. Mann, K. S. Carslaw, J. B. McQuaid, T. Jickells, L. G. Benning, Global Biogeochem. Cycles, doi:10.1029/2010GB003837, 2011.
* [http://www.atmos-chem-phys.net/11/12109/2011/acp-11-12109-2011.pdf Aerosol mass spectrometer constraint on the global secondary organic aerosol budget] D. V. Spracklen, J. L. Jimenez, K. S. Carslaw, D. R. Worsnop, M. J. Evans, G. W. Mann, Q. Zhang, M. R. Canagaratna, J. Allan, H. Coe, G. McFiggans, A. Rap, and P. Forster (2011), Atmos. Chem. Phys., 11, 12109-12136, 2011.
* [http://www.atmos-chem-phys.net/11/9067/2011/acp-11-9067-2011.pdf Global cloud condensation nuclei influenced by carbonaceous combustion aerosol] D. V. Spracklen, K. S. Carslaw, U. Poeschl, A. Rap, and P. M. Forster (2011), Atmos. Chem. Phys., 11, 9067-9087, 2011.
* [http://www.atmos-chem-phys.net/11/5819/2011/acp-11-5819-2011.html Global multi-year O3-CO correlation patterns from models and TES satellite observations] A. Voulgarakis, P. J. Telford, A. M. Aghedo, P. Braesicke, G. Faluvegi, N. L. Abraham, K. W. Bowman, J. A. Pyle, and D. T. Shindell, (2011), Atmos. Chem. Phys., 11, 5819-5838, doi:10.5194/acp-11-5819-2011

==2010==

* [http://www.agu.org/pubs/crossref/2010/2009JD013577.shtml Chemistry-climate model simulations of spring Antarctic ozone]: Austin, J., et al. (2010), Chemistry-climate model simulations of spring Antarctic ozone, J. Geophys. Res., 115, D00M11, doi:10.1029/2009JD013577.
* [http://www.agu.org/pubs/crossref/2010/2010JD013857.shtml Decline and recovery of total column ozone using a multimodel time series analysis]: Austin, J., et al. (2010), Decline and recovery of total column ozone using a multimodel time series analysis, J. Geophys. Res., 115, D00M10, doi:10.1029/2010JD013857.
* [http://www.agu.org/pubs/crossref/2010/2009GL040868.shtml Impact of BrO on dimethylsulfide in the remote marine boundary layer] Breider, T. J., M. P. Chipperfield, N. A. D. Richards, K. S. Carslaw, G. W. Mann, and D. V. Spracklen (2010), Impact of BrO on dimethylsulfide in the remote marine boundary layer, Geophys. Res. Lett., 37, L02807, doi:10.1029/2009GL040868.
* [http://www.atmos-chem-phys.net/10/9473/2010/acp-10-9473-2010.html The potential to narrow uncertainty in projections of stratospheric ozone over the 21st century]: Charlton-Perez, A. J., Hawkins, E., Eyring, V., Cionni, I., Bodeker, G. E., Kinnison, D. E., Akiyoshi, H., Frith, S. M., Garcia, R., Gettelman, A., Lamarque, J. F., Nakamura, T., Pawson, S., Yamashita, Y., Bekki, S., Braesicke, P., Chipperfield, M. P., Dhomse, S., Marchand, M., Mancini, E., Morgenstern, O., Pitari, G., Plummer, D., Pyle, J. A., Rozanov, E., Scinocca, J., Shibata, K., Shepherd, T. G., Tian, W., and Waugh, D. W.: The potential to narrow uncertainty in projections of stratospheric ozone over the 21st century, Atmos. Chem. Phys., 10, 9473-9486, doi:10.5194/acp-10-9473-2010, 2010
* [http://www.atmosp.physics.utoronto.ca/SPARC SPARC CCMVal (2010), SPARC CCMVal Report on the Evaluation of Chemistry-Climate Models]: V. Eyring, T. G. Shepherd, D. W. Waugh (eds.), SPARC CCMVal (2010), SPARC CCMVal Report on the Evaluation of Chemistry-Climate Models, SPARC Report No. 5, WCRP-X, WMO/TD-No. X.
* [http://www.atmos-chem-phys.net/10/9451/2010/acp-10-9451-2010.html Multi-model assessment of stratospheric ozone return dates and ozone recovery in CCMVal-2 models] Eyring, V., Cionni, I., Bodeker, G. E., Charlton-Perez, A. J., Kinnison, D. E., Scinocca, J. F., Waugh, D. W., Akiyoshi, H., Bekki, S., Chipperfield, M. P., Dameris, M., Dhomse, S., Frith, S. M., Garny, H., Gettelman, A., Kubin, A., Langematz, U., Mancini, E., Marchand, M., Nakamura, T., Oman, L. D., Pawson, S., Pitari, G., Plummer, D. A., Rozanov, E., Shepherd, T. G., Shibata, K., Tian, W., Braesicke, P., Hardiman, S. C., Lamarque, J. F., Morgenstern, O., Pyle, J. A., Smale, D., and Yamashita, Y.: Multi-model assessment of stratospheric ozone return dates and ozone recovery in CCMVal-2 models, Atmos. Chem. Phys., 10, 9451-9472, doi:10.5194/acp-10-9451-2010, 2010.
* [http://www.agu.org/pubs/crossref/2010/2009JD013770.shtml Stratosphere-troposphere coupling and annular mode variability in chemistry-climate models] Gerber, E. P., et al. (2010), Stratosphere-troposphere coupling and annular mode variability in chemistry-climate models, J. Geophys. Res., 115, D00M06, doi:10.1029/2009JD013770.
* [http://www.agu.org/pubs/crossref/2010/2010JD013884.shtml Multimodel assessment of the upper troposphere and lower stratosphere: Extratropics] Hegglin, M. I., et al. (2010), Multimodel assessment of the upper troposphere and lower stratosphere: Extratropics, J. Geophys. Res., 115, D00M09, doi:10.1029/2010JD013884.
* [http://www.agu.org/journals/jd/jd1007/2009JD012788/ Assessment of the breakup of the Antarctic polar vortex in two new chemistry-climate models]: Hurwitz, M. M., P. A. Newman, F. Li, L. D. Oman, O. Morgenstern, P. Braesicke, and J. A. Pyle (2010), Assessment of the breakup of the Antarctic polar vortex in two new chemistry-climate models, J. Geophys. Res., 115, D07105, doi:10.1029/2009JD012788.
* [http://www.atmos-chem-phys.org/10/4133/2010/acp-10-4133-2010.html Enhancement of marine cloud albedo via controlled sea spray injections: a global model study of the influence of emission rates, microphysics and transport] Korhonen, H., Carslaw, K. S., and Romakkaniemi, S.: Enhancement of marine cloud albedo via controlled sea spray injections: a global model study of the influence of emission rates, microphysics and transport, Atmos. Chem. Phys., 10, 4133-4143, doi:10.5194/acp-10-4133-2010, 2010.
* [http://www.agu.org/pubs/crossref/2010/2009GL041320.shtml Aerosol climate feedback due to decadal increases in Southern Hemisphere wind speeds] Korhonen, H., K. S. Carslaw, P. M. Forster, S. Mikkonen, N. D. Gordon, and H. Kokkola (2010), Aerosol climate feedback due to decadal increases in Southern Hemisphere wind speeds, Geophys. Res. Lett., 37, L02805, doi:10.1029/2009GL041320.
* [http://www.atmos-chem-phys.org/10/365/2010/acp-10-365-2010.html The impact of dust on sulfate aerosol, CN and CCN during an East Asian dust storm] Manktelow, P. T., Carslaw, K. S., Mann, G. W., and Spracklen, D. V.: The impact of dust on sulfate aerosol, CN and CCN during an East Asian dust storm, Atmos. Chem. Phys., 10, 365-382, doi:10.5194/acp-10-365-2010, 2010.
* [http://www.geosci-model-dev.net/3/519/2010/gmd-3-519-2010.html Description and evaluation of GLOMAP-mode: a modal global aerosol microphysics model for the UKCA composition-climate model] Mann, G. W., Carslaw, K. S., Spracklen, D. V., Ridley, D. A., Manktelow, P. T., Chipperfield, M. P., Pickering, S. J., and Johnson, C. E.: Description and evaluation of GLOMAP-mode: a modal global aerosol microphysics model for the UKCA composition-climate model, Geosci. Model Dev., 3, 519-551, doi:10.5194/gmd-3-519-2010, 2010.
* [http://www.atmos-chem-phys.org/10/695/2010/acp-10-695-2010.html Effects of boundary layer particle formation on cloud droplet number and changes in cloud albedo from 1850 to 2000] Merikanto, J., Spracklen, D. V., Pringle, K. J., and Carslaw, K. S.: Effects of boundary layer particle formation on cloud droplet number and changes in cloud albedo from 1850 to 2000, Atmos. Chem. Phys., 10, 695-705, doi:10.5194/acp-10-695-2010, 2010.
* [http://www.agu.org/journals/jd/jd1017/2009JD013347/ Anthropogenic forcing of the Northern Annular Mode in CCMVal-2 models]: Morgenstern, O., H. Akiyoshi, S. Bekki, P. Braesicke, N. Butchart, M. P. Chipperfield, D. Cugnet, M. Deushi, S. S. Dhomse, R. R. Garcia, A. Gettelman, N. P. Gillett, S. C. Hardiman, J. Jumelet, D. E. Kinnison, J.-F. Lamarque, F. Lott, M. Marchand, M. Michou, T. Nakamura, D. Olivié, T. Peter, D. Plummer, J. A. Pyle, E. Rozanov, D. Saint-Martin, J. F. Scinocca, K. Shibata, M. Sigmond, D. Smale, H. Teyssèdre, W. Tian, A. Voldoire, and Y. Yamashita (2010), J. Geophys. Res., 115, D00M03, doi:10.1029/2009JD013347.
* [http://www.agu.org/journals/jd/jd1015/2009JD013728/ Review of the formulation of present-generation stratospheric chemistry-climate models and associated external forcings]: O. Morgenstern, M. A. Giorgetta, K. Shibata, V. Eyring, D. W. Waugh, T. G. Shepherd, H. Akiyoshi, J. Austin, A. J. G. Baumgaertner, S. Bekki, P. Braesicke, C. Brühl, M. P. Chipperfield, D. Cugnet, M. Dameris, S. Dhomse, S. M. Frith, H. Garny, A. Gettelman, S. C. Hardiman, M. I. Hegglin, P. Jöckel, D. E. Kinnison, J.-F. Lamarque, E. Mancini, E. Manzini, M. Marchand, M. Michou, T. Nakamura, J. E. Nielsen, D. Olivié, G. Pitari, D. A. Plummer, E. Rozanov, J. F. Scinocca, D. Smale, H. Teyssèdre, M. Toohey, W. Tian, and Y. Yamashita (2010), J. Geophys. Res., 115, D00M02, doi:10.1029/2009JD013728.
* [http://www.agu.org/pubs/crossref/2010/2010JD014206.shtml Evidence for changes in stratospheric transport and mixing over the past three decades based on multiple data sets and tropical leaky pipe analysis] Ray, E. A., et al. (2010), Evidence for changes in stratospheric transport and mixing over the past three decades based on multiple data sets and tropical leaky pipe analysis, J. Geophys. Res., 115, D21304, doi:10.1029/2010JD014206.
* [http://www.atmos-chem-phys.org/10/6025/2010/acp-10-6025-2010.html The impact of the 1783–1784 AD Laki eruption on global aerosol formation processes and cloud condensation nuclei] Schmidt, A., Carslaw, K. S., Mann, G. W., Wilson, M., Breider, T. J., Pickering, S. J., and Thordarson, T.: The impact of the 1783–1784 AD Laki eruption on global aerosol formation processes and cloud condensation nuclei, Atmos. Chem. Phys., 10, 6025-6041, doi:10.5194/acp-10-6025-2010, 2010.
* [http://www.agu.org/pubs/crossref/2010/2010JD014271.shtml Impact of stratospheric ozone on Southern Hemisphere circulation change: A multimodel assessment] Son, S.-W., et al. (2010), Impact of stratospheric ozone on Southern Hemisphere circulation change: A multimodel assessment, J. Geophys. Res., 115, D00M07, doi:10.1029/2010JD014271.
* [http://www.atmos-chem-phys.net/10/7117/2010/acp-10-7117-2010.html Effects of climate-induced changes in isoprene emissions after the eruption of Mount Pinatubo] Telford, P., J. Lathiere, N. L. Abraham, P. Braesicke, C. E. Johnson, O. Morgenstern, F. M. O'Connor, R. C. Pike, O. Wild, P. J. Young, D. Beerling, C. N. Hewitt and J. A. Pyle (2010), Effects of climate-induced changes in isoprene emissions after the eruption of Mount Pinatubo, Atmos. Chem. Phys., 10, 7117-7125, doi:10.5194/acp-10-7117-2010
* [http://www.atmos-chem-phys.org/10/7545/2010/acp-10-7545-2010.html Low sensitivity of cloud condensation nuclei to changes in the sea-air flux of dimethyl-sulphide] Woodhouse, M. T., Carslaw, K. S., Mann, G. W., Vallina, S. M., Vogt, M., Halloran, P. R., and Boucher, O.: Low sensitivity of cloud condensation nuclei to changes in the sea-air flux of dimethyl-sulphide, Atmos. Chem. Phys., 10, 7545-7559, doi:10.5194/acp-10-7545-2010, 2010.
* [http://www.agu.org/journals/gl/gl1009/2010GL042812/ Impact of stratospheric ozone recovery on tropospheric ozone and the oxidizing capacity]: Zeng, G., O. Morgenstern, P. Braesicke, and J. A. Pyle (2010), Geophys. Res. Lett., 37, L09805, doi:10.1029/2010GL042812.

==2009==

* [http://www.geosci-model-dev.net/2/43/2009/ Evaluation of the new UKCA climate-composition model – Part 1: The stratosphere]: Morgenstern, O., Braesicke, P., O'Connor, F. M., Bushell, A. C., Johnson, C. E., Osprey, S. M., and Pyle, J. A., Geosci. Model Dev., 2, 43-57, 2009.
* [http://www.agu.org/journals/gl/gl0916/2009GL039152/ Interactions between tropospheric chemistry and climate model temperature and humidity biases]: F. M. O'Connor, C. E. Johnson, O. Morgenstern, and W. J. Collins, Geophys. Res. Lett., 36, L16801, doi:10.1029/2009GL039152, 2009.
* [http://www.atmos-chem-phys.net/9/4251/2009/acp-9-4251-2009.html Reassessment of causes of ozone column variability following the eruption of Mount Pinatubo using a nudged CCM]: Telford, P., Braesicke, P., Morgenstern, O., and Pyle, J.: Reassessment of causes of ozone column variability following the eruption of Mount Pinatubo using a nudged CCM, Atmos. Chem. Phys., 9, 4251-4260, 2009.

==2008==

* [http://www.agu.org/pubs/crossref/2008/2007JD009718.shtml Influence of oceanic dimethyl sulfide emissions on cloud condensation nuclei concentrations and seasonality over the remote Southern Hemisphere oceans: A global model study]: Korhonen, H., K. S. Carslaw, D. V. Spracklen, G. W. Mann, and M. T. Woodhouse (2008), Influence of oceanic dimethyl sulfide emissions on cloud condensation nuclei concentrations and seasonality over the remote Southern Hemisphere oceans: A global model study, J. Geophys. Res., 113, D15204, doi:10.1029/2007JD009718.
* [http://www.agu.org/pubs/crossref/2008/2008GL034590.shtml The World Avoided by the Montreal Protocol]: Morgenstern, O., P. Braesicke, M. M. Hurwitz, F. M. O'Connor, A. C. Bushell, C. E. Johnson, and J. A. Pyle (2008), Geophys. Res. Lett., 35, L16811, doi:10.1029/2008GL034590.
* [http://www.atmos-chem-phys.net/8/1701/2008/acp-8-1701-2008.html Technical Note: Description and assessment of a nudged version of the new dynamics Unified Model]: Telford, P. J., Braesicke, P., Morgenstern, O., and Pyle, J. A.: Technical Note: Description and assessment of a nudged version of the new dynamics Unified Model, Atmos. Chem. Phys., 8, 1701-1712, 2008.
* [http://www.agu.org/pubs/crossref/2008/2007GL033038.shtml Contribution of particle formation to global cloud condensation nuclei concentrations]: Spracklen, D. V., et al. (2008), Contribution of particle formation to global cloud condensation nuclei concentrations, Geophys. Res. Lett., 35, L06808, doi:10.1029/2007GL033038.
* [http://www.sciencedirect.com/science/article/B6VH3-4SMNY0J-1/2/4a88e04ab0cac2c4069c19ac12c2c42f New Directions: The impact of oceanic iron fertilisation on cloud condensation nuclei]: Matthew T. Woodhouse, Graham W. Mann, Kenneth S. Carslaw, Olivier Boucher, New Directions: The impact of oceanic iron fertilisation on cloud condensation nuclei, Atmospheric Environment, Volume 42, Issue 22, July 2008, Pages 5728-5730, ISSN 1352-2310, DOI: 10.1016/j.atmosenv.2008.05.005.

==2007==

* [http://www.agu.org/pubs/crossref/2007/2006GL028668.shtml Regional and global trends in sulfate aerosol since the 1980s]: Manktelow, P. T., G. W. Mann, K. S. Carslaw, D. V. Spracklen, and M. P. Chipperfield (2007), Regional and global trends in sulfate aerosol since the 1980s, Geophys. Res. Lett., 34, L14803, doi:10.1029/2006GL028668.
* [http://www.atmos-chem-phys.net/7/2073/2007/acp-7-2073-2007.html Evaluation of a global aerosol microphysics model against size-resolved particle statistics in the marine atmosphere]: Spracklen, D. V., Pringle, K. J., Carslaw, K. S., Mann, G. W., Manktelow, P., and Heintzenberg, J.: Evaluation of a global aerosol microphysics model against size-resolved particle statistics in the marine atmosphere, Atmos. Chem. Phys., 7, 2073-2090, 2007.

Minutes of the chemistry working group meeting 10/6/2014

2014-06-26T15:56:22Z

Alex:

UKCA Chemistry Working Group Telecon

Present: AA, GF, MD.
Apologies: FOC, PTG, LA

Discussion:
Stability issues – StratTrop is quite stable, but TropIsop still has some stability issues (see progress notes from FOC). How important is the upper boundary condition? Could prioritise doing this first (fixing the Noy issue in the UBC).

Will still be using TropIsop (into the next few years) so need to find a fix for this.

Release an 8.4 StratTrop – priority.

Main chemistry issues:
Solver – no one took up the post. Now thinking about bringing in a consultant from Edinburgh to help with the solver. Potentially too much of an engineering position contributed to why the position wasn't filled. Two posts at MO for AQ and for Climate UKCA work. The latter position will focus on the aerosols for NWP.
Scheme's

Direction for future chemistry updates:

Report to the Exec:
Recommend investigation on the solver issues – bringing in expertise from previous/current ASAD users (MJP, OJW etc).
GAF – its a big job for someone to be asked to be involved with fixing the solver with no clear benefit to them.
GAF – define wish list for how we want the solver to work. What can we learn from the current problems and how other groups operate. Flexibility is an important desirable quality of the package. Fidelity. Next HCCP will include a report on future chemistry, time line of 6-12 months.

Noy bugs – So far implementing all the 'fixes' we discussed at the Noy 'PEG' meeting have failed to alleviate the problem. New runs: No P and L of Noy. Just initial conditions, will test if there is a numerical loss via advection. In the longer run trying an ENDGAME run would be useful. No time line at the moment for.

iBVOC working well in JULES. Plan to lodge code at UM9.1. iBVOC emissions for C5H8 (Arneth scheme), Terpenes, MeOH, and Acetone (c.f Guenther 95 method). C5H8 ~ 500 TgC/yr.

Need further work on FAST-Jx linking with MODE and with Aerosol (PJT is leading this). No time line at the moment for this.

Trop het chem. No one is sure about this. All agree that this needs to be implemented into StratTrop for UKESM1. No clear leader for this activity.

Future changes:
HONO → sources
FAST-JX → coupling with MODE very important. Updating the organic photolysis important.
LNOx → massive scope to look into this. Porting of old tagged Nox job to ARCHER is a pain. Would be helpful.

GAF – interactive fire emissions running in JULES off-line. Hopeful that this will be implemented into the UM very soon. Likely to have a dev branch of interactive fire emissions fairly soon. Use LNOx scheme to provide flash rates.
ESM team will be working on deposition. GAF notes some simple 'bugs' features to fix. Modifications to scheme from Edinburgh are understood - mainly a nomenclature issue. Not clear if they will be implemented into the trunk.

Next freeze is mid sept. Worth having a telecon mid august to see if there is anything that we can respond to.

Minutes of the chemistry working group meeting 10/6/2014

2014-06-26T15:55:48Z

Alex: Created page with "UKCA Chemistry Working Group Telecon Discussion: Stability issues – StratTrop is quite stable, but TropIsop still has some stability issues (see progress notes from FOC). H..."

UKCA Chemistry Working Group Telecon

Discussion:
Stability issues – StratTrop is quite stable, but TropIsop still has some stability issues (see progress notes from FOC). How important is the upper boundary condition? Could prioritise doing this first (fixing the Noy issue in the UBC).

Will still be using TropIsop (into the next few years) so need to find a fix for this.

Release an 8.4 StratTrop – priority.

Main chemistry issues:
Solver – no one took up the post. Now thinking about bringing in a consultant from Edinburgh to help with the solver. Potentially too much of an engineering position contributed to why the position wasn't filled. Two posts at MO for AQ and for Climate UKCA work. The latter position will focus on the aerosols for NWP.
Scheme's

Direction for future chemistry updates:

Report to the Exec:
Recommend investigation on the solver issues – bringing in expertise from previous/current ASAD users (MJP, OJW etc).
GAF – its a big job for someone to be asked to be involved with fixing the solver with no clear benefit to them.
GAF – define wish list for how we want the solver to work. What can we learn from the current problems and how other groups operate. Flexibility is an important desirable quality of the package. Fidelity. Next HCCP will include a report on future chemistry, time line of 6-12 months.

Noy bugs – So far implementing all the 'fixes' we discussed at the Noy 'PEG' meeting have failed to alleviate the problem. New runs: No P and L of Noy. Just initial conditions, will test if there is a numerical loss via advection. In the longer run trying an ENDGAME run would be useful. No time line at the moment for.

iBVOC working well in JULES. Plan to lodge code at UM9.1. iBVOC emissions for C5H8 (Arneth scheme), Terpenes, MeOH, and Acetone (c.f Guenther 95 method). C5H8 ~ 500 TgC/yr.

Need further work on FAST-Jx linking with MODE and with Aerosol (PJT is leading this). No time line at the moment for this.

Trop het chem. No one is sure about this. All agree that this needs to be implemented into StratTrop for UKESM1. No clear leader for this activity.

Future changes:
HONO → sources
FAST-JX → coupling with MODE very important. Updating the organic photolysis important.
LNOx → massive scope to look into this. Porting of old tagged Nox job to ARCHER is a pain. Would be helpful.

GAF – interactive fire emissions running in JULES off-line. Hopeful that this will be implemented into the UM very soon. Likely to have a dev branch of interactive fire emissions fairly soon. Use LNOx scheme to provide flash rates.
ESM team will be working on deposition. GAF notes some simple 'bugs' features to fix. Modifications to scheme from Edinburgh are understood - mainly a nomenclature issue. Not clear if they will be implemented into the trunk.

Next freeze is mid sept. Worth having a telecon mid august to see if there is anything that we can respond to.

Chemistry working group

2014-06-26T15:50:25Z

Alex:

UKCA Chemistry working group members:

Met Office - Fiona O'Connor, Mohit Dalvi, Gerd Folberth

University of Cambridge - Alex Archibald, Luke Abraham, Paul Griffiths

Minutes

* [[Minutes_of_the_chemistry_working_group_meeting_29/1/2014|Minutes of telecon held 29/1/2014]]
* [[Minutes_of_the_chemistry_working_group_meeting_19/3/2014|Minutes of Skype held 19/3/2014]]
* [[Minutes_of_the_chemistry_working_group_meeting_10/6/2014|Minutes of Skype held 10/6/2014]]

Publications

2014-06-18T13:46:35Z

Alex:

==List of UKCA Publications==

Here is a list of Publications (by year) which use the UKCA Model:

== 2014 ==
* [http://http://www.atmos-chem-phys.net/14/6035/2014/acp-14-6035-2014.html Heterogeneous reaction of N2O5 with airborne TiO2 particles and its implication for stratospheric particle injection] Tang, M. J., Telford, P. J., Pope, F. D., Rkiouak, L., Abraham, N. L., Archibald, A. T., Braesicke, P., Pyle, J. A., McGregor, J., Watson, I. M., Cox, R. A., and Kalberer, M.: Heterogeneous reaction of N2O5 with airborne TiO2 particles and its implication for stratospheric particle injection, Atmos. Chem. Phys., 14, 6035-6048, 2014.
* [http://http://www.atmos-chem-phys.net/14/1011/2014/acp-14-1011-2014.html Influence of future climate and cropland expansion on isoprene emissions and tropospheric ozone] Squire, O. J., Archibald, A. T., Abraham, N. L., Beerling, D. J., Hewitt, C. N., Lathière, J., Pike, R. C., Telford, P. J., and Pyle, J. A. Atmos. Chem. Phys., 14, 1011-1024, doi:10.5194/acp-14-1011-2014, 2014.
* [http://www.geosci-model-dev.net/7/41/2014/gmd-7-41-2014.html Evaluation of the new UKCA climate-composition model. Part II. The troposphere]. F.M. O'Connor, C.E. Johnson, O. Morgenstern, N.L. Abraham, P. Braesicke, M. Dalvi, G.A. Folberth, M.G. Sanderson, P.J. Telford, A. Voulgarakis, P.J. Young, G. Zeng, W.J. Collins, and J.A. Pyle, Geosci. Model Dev., 7, 41-91, 2014.

== 2013 ==
* [http://www.atmos-chem-phys.net/13/3027/2013/acp-13-3027-2013.pdf Impact of the modal aerosol scheme GLOMAP-mode on aerosol forcing in the Hadley Centre Global Environmental Model]. N. Bellouin, G. W. Mann, M. T. Woodhouse, C. Johnson, K. S. Carslaw, and M. Dalvi, Atmos. Chem. Phys., 13, 3027-3044, doi:10.5194/acp-13-3027-2013, 2013.
* [http://www.atmos-chem-phys-discuss.net/13/8455/2013/acpd-13-8455-2013.html Consistent circulation differences in the Southern Hemisphere caused by ozone changes: a chemistry-climate model and observational study] Braesicke, P., Keeble, J., Yang, X., Stiller, G., Kellmann, S., Abraham, N. L., Archibald, A. T., Telford, P., and Pyle, J. A. Atmos. Chem. Phys. Discuss., 13, 8455-8487, doi:10.5194/acpd-13-8455-2013, 2013.
* [http://www.atmos-chem-phys.net/13/5969/2013/acp-13-5969-2013.html Constraints on aerosol processes in climate models from vertically-resolved aircraft observations of black carbon]. Z. Kipling, P. Stier, J. P. Schwarz, A. E. Perring, J. R. Spackman, G. W. Mann, C. E. Johnson, and P. J. Telford, Atmos. Chem. Phys., 13, 5969-5986, doi:10.5194/acp-13-5969-2013, 2013.
* [http://onlinelibrary.wiley.com/doi/10.1029/2012JD018382/ Impacts of climate change, ozone recovery, and increasing methane on surface ozone and the tropospheric oxidizing capacity] Olaf Morgenstern, Guang Zeng, N. Luke Abraham, Paul J. Telford, Peter Braesicke, John A. Pyle, Steven C. Hardiman, Fiona M. O'Connor, Colin E. Johnson, Journal of Geophysical Research: Atmospheres Volume 118, Issue 2, pages 1028–1041, 27 January 2013
* [http://www.geosci-model-dev-discuss.net/6/1743/2013/gmdd-6-1743-2013.html Evaluation of the new UKCA climate-composition model. Part II. The troposphere]. F.M. O'Connor, C.E. Johnson, O. Morgenstern, N.L. Abraham, P. Braesicke, M. Dalvi, G.A. Folberth, M.G. Sanderson, P.J. Telford, P.J. Young, G. Zeng, W.J. Collins, and J.A. Pyle, Geosci. Model Dev. Disc., 6, 1743-1857, 2013.
* [http://www.geosci-model-dev.net/6/353/2013/gmd-6-353-2013.html Air quality modelling using the Met Office Unified Model (AQUM OS24-26): model description and initial evaluation]. Savage, N. H., Agnew, P., Davis, L. S., Ordóñez, C., Thorpe, R., Johnson, C. E., O'Connor, F. M., and Dalvi, M., Geosci. Model Dev., 6, 353-372, doi:10.5194/gmd-6-353-2013, 2013.
* [http://www.atmos-chem-phys-discuss.net/13/18307/2013/acpd-13-18307-2013.html Influence of future climate and cropland expansion on isoprene emissions and tropospheric ozone] Squire, O. J., Archibald, A. T., Beerling, D. J., Hewitt, C. N., Lathière, J., Pike, R. C., Telford, P. J., and Pyle, J. A. Atmos. Chem. Phys. Discuss., 13, 18307-18344, doi:10.5194/acpd-13-18307-2013, 2013.
* [http://www.atmos-chem-phys.net/13/12215/2013/acp-13-12215-2013.html Modelling the impact of megacities on local, regional and global tropospheric ozone and the deposition of nitrogen species]. Stock, Z. S., Russo, M. R., Butler, T. M., Archibald, A. T., Lawrence, M. G., Telford, P. J., Abraham, N. L., and Pyle, J. A. Atmos. Chem. Phys., 13, 12215-12231, doi:10.5194/acp-13-12215-2013, 2013.
* [http://www.atmos-chem-phys-discuss.net/13/27423/2013/acpd-13-27423-2013.html Representing ozone extremes in European megacities: the importance of resolution in a global chemistry climate model]. Stock, Z. S., Russo, M. R., and Pyle, J. A. Atmos. Chem. Phys. Discuss., 13, 27423-27458, doi:10.5194/acpd-13-27423-2013, 2013.
* [http://www.geosci-model-dev.net/6/161/2013/gmd-6-161-2013.html Implementation of the Fast-JX Photolysis scheme (v6.4) into the UKCA component of the MetUM chemistry-climate model (v7.3)]. P. J. Telford, N. L. Abraham, A. T. Archibald, P. Braesicke, M. Dalvi, O. Morgenstern, F. M. O'Connor, N. A. D. Richards, and J. A. Pyle. Geosci. Model Dev., 6, 161-177, 2013.
* [http://www.atmos-chem-phys.net/13/2723/2013/acp-13-2723-2013.html Sensitivity of cloud condensation nuclei to regional changes in dimethyl-sulphide emissions]. M. T. Woodhouse, G. W. Mann, K. S. Carslaw and O. Boucher, Atmos. Chem. Phys., 13, 2723-2733. doi: 10.5194/acp-13-2723-2013, 2013.

== 2012 ==

* [http://www.atmos-chem-phys.net/12/6775/2012/acp-12-6775-2012.html The scavenging processes controlling the seasonal cycle in Arctic sulphate and black carbon aerosol]. J. Browse, K. S. Carslaw, S. R. Arnold, K. Pringle, and O. Boucher, Atmos. Chem. Phys., 12, 6775-6798, 2012.

* [http://www.atmos-chem-phys.net/12/11573/2012/acp-12-11573-2012.html No statistically significant effect of a short-term decrease in the nucleation rate on atmospheric aerosols]. E. M. Dunne, L. A. Lee, C. L. Reddington, and K. S. Carslaw, Atmos. Chem. Phys., 12, 11573-11587, 2012.

* [http://www.agu.org/journals/gl/gl1220/2012GL053401/index.shtml Modelling future changes to the stratospheric source gas injection of biogenic bromocarbons]. Hossaini, R., et al., Geophys. Res. Lett., 39, L20813, 2012.

* [http://www.atmos-chem-phys.net/12/9739/2012/acp-12-9739-2012.html Mapping the uncertainty in global CCN using emulation]. L. A. Lee, K. S. Carslaw, K. J. Pringle, and G. W. Mann, Atmos. Chem. Phys., 12, 9739-9751, 2012

* [http://www.atmos-chem-phys.net/12/4449/2012/acp-12-4449-2012.pdf Intercomparison of modal and sectional aerosol microphysics representations within the same 3-D global chemical transport model]. G. W. Mann, K. S. Carslaw, D. A. Ridley, D. V. Spracklen, K. J. Pringle, J. Merikanto, H. Korhonen, J. P. Schwarz, L. A. Lee, P. T. Manktelow, M. T. Woodhouse, A. Schmidt, T. J. Breider, K. M. Emmerson, C. L. Reddington, M. P. Chipperfield, and S. J. Pickering, Atmos. Chem. Phys., 12, 4449–4476, 2012.

*[http://www.agu.org/journals/jd/jd1222/2012JD018276/ Sensitivity of biogenic isoprene emissions to past, present, and future environmental conditions and implications for atmospheric chemistry]. Pacifico, F., G. A. Folberth, C. D. Jones, S. P. Harrison, and W. J. Collins, J. Geophys. Res., 117, D22302, doi:10.1029/2012JD018276, 2012.

* [http://www.atmos-chem-phys-discuss.net/12/7125/2012/acpd-12-7125-2012.html A multi-model assessment of the efficacy of sea spray geoengineering]. K. J. Pringle, K. S. Carslaw, T. Fan, G.W. Mann, A. Hill, P. Stier, K. Zhang, and H. Tost, Atmos. Chem. Phys. Discuss., 12, 7125-7166, 2012.

* [http://www.atmos-chem-phys-discuss.net/12/26503/2012/acpd-12-26503-2012.pdf The size distribution and mixing state of black carbon aerosol over Europe]. C. L. Reddington, G. McMeeking, G. W. Mann, H. Coe, M. G. Frontoso, D. Liu, M. Flynn, D. V. Spracklen, and K. S. Carslaw, Atmos. Chem. Phys. Discuss., 12, 26503-26560, 2012.

* [http://www.atmos-chem-phys.net/12/7321/2012/acp-12-7321-2012.pdf Importance of tropospheric volcanic aerosol for indirect radiative forcing of climate]. A. Schmidt, K. S. Carslaw, G. W. Mann, A. Rap, K. J. Pringle, D. V. Spracklen, M. Wilson, and P. M. Forster, Atmos. Chem. Phys., 12, 7321-7339, 2012.

* [http://www.atmos-chem-phys-discuss.net/12/27395/2012/acpd-12-27395-2012.pdf Sensitivity of cloud condensation nuclei to regional changes in dimethyl-sulphide emissions]. M. T. Woodhouse, G. W. Mann, K. S. Carslaw, and O. Boucher, Atmos. Chem. Phys. Discuss., 12, 27395-27423, 2012.

==2011==

* [http://www.pnas.org/content/108/38/15710.full.pdf+html Excess mortality in Europe following a future Laki-style Icelandic eruption]. A. Schmidt, B. Ostro, K. S. Carslaw, M. Wilson, T. Thordarson, G. W. Mann and A. J. Simmons, Proceedings of the National Academy of Sciences, USA, vol. 108 ∣ no. 38, pp. 15710–15715, 2011.
* [http://www.atmos-chem-phys.net/11/12253/2011/acp-11-12253-2011.pdf Emulation of a complex global aerosol model to quantify sensitivity to uncertain parameters]. L. A. Lee, K. S. Carslaw, K. J. Pringle, G. W. Mann, and D. V. Spracklen, Atmos. Chem. Phys., 11, 12253-12273, 2011.
* [http://www.agu.org/pubs/crossref/2011/2010GL046520.shtml Impacts of HOx regeneration and recycling in the oxidation of isoprene: Consequences for the composition of past, present and future atmospheres] A. T. Archibald, J. G. Levine, N. L. Abraham, M. C. Cooke, P. M. Edwards, D. E. Heard, M. E. Jenkin, A. Karunaharan, R. C. Pike, P. S. Monks, D. E. Shallcross, P. J. Telford, L. K. Whalley, and J. A. Pyle, Geophys. Res. Lett. , 38 , L05804, doi:10.1029/2010GL046520
* [http://www.agu.org/pubs/crossref/2011/2010GL046228.shtml Ozone concentration changes in the Asian summer monsoon anticyclone and lower stratospheric water vapour: An idealised model study]: ,Braesicke, P., O. J. Smith, P. Telford, and J. A. Pyle (2011), Geophys. Res. Lett., 38, 10.1029/2010GL046228, L03810.
* [http://www.geosci-model-dev.net/4/1051/2011/ Development and evaluation of an Earth-system model - HadGEM2] W. J. Collins, N. Bellouin, M. Doutriaux-Boucher, N. Gedney, P. Halloran, T. Hinton, J. Hughes, C. D. Jones, M. Joshi, S. Liddicoat, G. Martin, F. O'Connor, J. Rae, C. Senior, S. Sitch, I. Totterdell, A. Wiltshire, and S. Woodward, Geosci. Model Dev., 4, 1051-1075, 2011.
* [http://dx.doi.org/10.5194/acp-11-599-2011 Attribution of observed changes in stratospheric ozone and temperature] Gillett, N. P., Akiyoshi, H., Bekki, S., Braesicke, P., Eyring, V., Garcia, R., Karpechko, A. Yu., McLinden, C. A., Morgenstern, O., Plummer, D. A., Pyle, J. A., Rozanov, E., Scinocca, J., and Shibata, K., (2011), Atmos. Chem. Phys., 10.5194/acp-11-599-2011 11, 599-609
* [http://www.geosci-model-dev.net/4/543/2011/ The HadGEM2-ES implementation of CMIP5 centennial simulations] C. D. Jones, J. K. Hughes, N. Bellouin, S. C. Hardiman, G. S. Jones, J. Knight, S. Liddicoat, F. M. O'Connor, R. J. Andres, C. Bell, K.-O. Boo, A. Bozzo, N. Butchart, P. Cadule, K. D. Corbin, M. Doutriaux-Boucher, P. Friedlingstein, J. Gornall, L. Gray, P. R. Halloran, G. Hurtt, W. J. Ingram, J.-F. Lamarque, R. M. Law, M. Meinshausen, S. Osprey, E. J. Palin, L. Parsons Chini, T. Raddatz, M. G. Sanderson, A. A. Sellar, A. Schurer, P. Valdes, N. Wood, S. Woodward, M. Yoshioka, and M. Zerroukat, Geosci. Model Dev., 4, 543-570, 2011.
* [http://www.atmos-chem-phys-discuss.net/11/9057/2011/acpd-11-9057-2011.pdf Large methane releases lead to strong aerosol forcing and reduced cloudiness] T. Kurtén, L. Zhou, R. Makkonen, J. Merikanto, P. Räisänen, M. Boy, N. Richards, A. Rap, S. Smolander, A. Sogachev, A. Guenther, G. W. Mann, K. Carslaw, and M. Kulmala (2011), Atmos. Chem. Phys. Discuss., 11, 9057-9081.
*[http://www.geosci-model-dev.net/4/723/2011/ The HadGEM2 family of Met Office Unified Model climate configurations] The HadGEM2 Development Team: G. M. Martin, Bellouin, N., Collins, W. J., Culverwell, I. D., Halloran, P. R., Hardiman, S. C., Hinton, T. J., Jones, C. D., McDonald, R. E., McLaren, A. J., O'Connor, F. M., Roberts, M. J., Rodriguez, J.M., Woodward, S., Best, M. J., Brooks, M. E., Brown, A. R., Butchart, N., Dearden, C., Derbyshire, S. H., Dharssi, I., Doutriaux-Boucher, M., Edwards, J. M., Falloon, P. D., Gedney, N., Gray, L. J., Hewitt, H. T., Hobson, M., Huddleston, M. R., Hughes, J., Ineson, S., Ingram, W. J., James, P. M., Johns, T. C., Johnson, C. E., Jones, A., Jones, C. P., Joshi, M. M., Keen, A. B., Liddicoat, S., Lock, A. P., Maidens, A. V., Manners, J. C., Milton, S. F., Rae, J. G. L., Ridley, J. K., Sellar, A., Senior, C. A., Totterdell, I. J., Verhoef, A., Vidale, P. L., and Wiltshire, A., Geosci. Model Dev., 4, 723-757, 2011.
* [http://www.atmos-chem-phys.net/11/2765/2011/acp-11-2765-2011.html Representation of tropical deep convection in atmospheric models – Part 1: Meteorology and comparison with satellite observations],Russo, M. R., Marécal, V., Hoyle, C. R., Arteta, J., Chemel, C., Chipperfield, M. P., Dessens, O., Feng, W., Hosking, J. S., Telford, P. J., Wild, O., Yang, X., and Pyle, J. A, Atmos. Chem. Phys., 11, doi:10.5194/acp-11-2765-2011, 2765-2786.
* [http://www.atmos-chem-phys.net/11/8459/2011/acp-11-8459-2011.pdf Minor effect of physical size sorting on iron solubility of transported mineral dust] Z. B. Shi, M. T. Woodhouse, K. S. Carslaw, M. D. Krom, G. W. Mann, A. R. Baker, I. Savov, G. Fones, B. Brooks, T. D. Jickells, and L. G. Benning, Atmos. Chem. Phys., 11, 8459-8469, 2011.
* [http://www.agu.org/pubs/crossref/2011/2010GB003837.shtml Influence of chemical weathering and aging of iron oxides on the potential iron solubility of Saharan dust during simulated atmospheric processing] Z. B. Shi, M. Krom, S. Bonneville, A. R. Baker, C. Bristow, N. Drake, G. W. Mann, K. S. Carslaw, J. B. McQuaid, T. Jickells, L. G. Benning, Global Biogeochem. Cycles, doi:10.1029/2010GB003837, 2011.
* [http://www.atmos-chem-phys.net/11/12109/2011/acp-11-12109-2011.pdf Aerosol mass spectrometer constraint on the global secondary organic aerosol budget] D. V. Spracklen, J. L. Jimenez, K. S. Carslaw, D. R. Worsnop, M. J. Evans, G. W. Mann, Q. Zhang, M. R. Canagaratna, J. Allan, H. Coe, G. McFiggans, A. Rap, and P. Forster (2011), Atmos. Chem. Phys., 11, 12109-12136, 2011.
* [http://www.atmos-chem-phys.net/11/9067/2011/acp-11-9067-2011.pdf Global cloud condensation nuclei influenced by carbonaceous combustion aerosol] D. V. Spracklen, K. S. Carslaw, U. Poeschl, A. Rap, and P. M. Forster (2011), Atmos. Chem. Phys., 11, 9067-9087, 2011.
* [http://www.atmos-chem-phys.net/11/5819/2011/acp-11-5819-2011.html Global multi-year O3-CO correlation patterns from models and TES satellite observations] A. Voulgarakis, P. J. Telford, A. M. Aghedo, P. Braesicke, G. Faluvegi, N. L. Abraham, K. W. Bowman, J. A. Pyle, and D. T. Shindell, (2011), Atmos. Chem. Phys., 11, 5819-5838, doi:10.5194/acp-11-5819-2011

==2010==

* [http://www.agu.org/pubs/crossref/2010/2009JD013577.shtml Chemistry-climate model simulations of spring Antarctic ozone]: Austin, J., et al. (2010), Chemistry-climate model simulations of spring Antarctic ozone, J. Geophys. Res., 115, D00M11, doi:10.1029/2009JD013577.
* [http://www.agu.org/pubs/crossref/2010/2010JD013857.shtml Decline and recovery of total column ozone using a multimodel time series analysis]: Austin, J., et al. (2010), Decline and recovery of total column ozone using a multimodel time series analysis, J. Geophys. Res., 115, D00M10, doi:10.1029/2010JD013857.
* [http://www.agu.org/pubs/crossref/2010/2009GL040868.shtml Impact of BrO on dimethylsulfide in the remote marine boundary layer] Breider, T. J., M. P. Chipperfield, N. A. D. Richards, K. S. Carslaw, G. W. Mann, and D. V. Spracklen (2010), Impact of BrO on dimethylsulfide in the remote marine boundary layer, Geophys. Res. Lett., 37, L02807, doi:10.1029/2009GL040868.
* [http://www.atmos-chem-phys.net/10/9473/2010/acp-10-9473-2010.html The potential to narrow uncertainty in projections of stratospheric ozone over the 21st century]: Charlton-Perez, A. J., Hawkins, E., Eyring, V., Cionni, I., Bodeker, G. E., Kinnison, D. E., Akiyoshi, H., Frith, S. M., Garcia, R., Gettelman, A., Lamarque, J. F., Nakamura, T., Pawson, S., Yamashita, Y., Bekki, S., Braesicke, P., Chipperfield, M. P., Dhomse, S., Marchand, M., Mancini, E., Morgenstern, O., Pitari, G., Plummer, D., Pyle, J. A., Rozanov, E., Scinocca, J., Shibata, K., Shepherd, T. G., Tian, W., and Waugh, D. W.: The potential to narrow uncertainty in projections of stratospheric ozone over the 21st century, Atmos. Chem. Phys., 10, 9473-9486, doi:10.5194/acp-10-9473-2010, 2010
* [http://www.atmosp.physics.utoronto.ca/SPARC SPARC CCMVal (2010), SPARC CCMVal Report on the Evaluation of Chemistry-Climate Models]: V. Eyring, T. G. Shepherd, D. W. Waugh (eds.), SPARC CCMVal (2010), SPARC CCMVal Report on the Evaluation of Chemistry-Climate Models, SPARC Report No. 5, WCRP-X, WMO/TD-No. X.
* [http://www.atmos-chem-phys.net/10/9451/2010/acp-10-9451-2010.html Multi-model assessment of stratospheric ozone return dates and ozone recovery in CCMVal-2 models] Eyring, V., Cionni, I., Bodeker, G. E., Charlton-Perez, A. J., Kinnison, D. E., Scinocca, J. F., Waugh, D. W., Akiyoshi, H., Bekki, S., Chipperfield, M. P., Dameris, M., Dhomse, S., Frith, S. M., Garny, H., Gettelman, A., Kubin, A., Langematz, U., Mancini, E., Marchand, M., Nakamura, T., Oman, L. D., Pawson, S., Pitari, G., Plummer, D. A., Rozanov, E., Shepherd, T. G., Shibata, K., Tian, W., Braesicke, P., Hardiman, S. C., Lamarque, J. F., Morgenstern, O., Pyle, J. A., Smale, D., and Yamashita, Y.: Multi-model assessment of stratospheric ozone return dates and ozone recovery in CCMVal-2 models, Atmos. Chem. Phys., 10, 9451-9472, doi:10.5194/acp-10-9451-2010, 2010.
* [http://www.agu.org/pubs/crossref/2010/2009JD013770.shtml Stratosphere-troposphere coupling and annular mode variability in chemistry-climate models] Gerber, E. P., et al. (2010), Stratosphere-troposphere coupling and annular mode variability in chemistry-climate models, J. Geophys. Res., 115, D00M06, doi:10.1029/2009JD013770.
* [http://www.agu.org/pubs/crossref/2010/2010JD013884.shtml Multimodel assessment of the upper troposphere and lower stratosphere: Extratropics] Hegglin, M. I., et al. (2010), Multimodel assessment of the upper troposphere and lower stratosphere: Extratropics, J. Geophys. Res., 115, D00M09, doi:10.1029/2010JD013884.
* [http://www.agu.org/journals/jd/jd1007/2009JD012788/ Assessment of the breakup of the Antarctic polar vortex in two new chemistry-climate models]: Hurwitz, M. M., P. A. Newman, F. Li, L. D. Oman, O. Morgenstern, P. Braesicke, and J. A. Pyle (2010), Assessment of the breakup of the Antarctic polar vortex in two new chemistry-climate models, J. Geophys. Res., 115, D07105, doi:10.1029/2009JD012788.
* [http://www.atmos-chem-phys.org/10/4133/2010/acp-10-4133-2010.html Enhancement of marine cloud albedo via controlled sea spray injections: a global model study of the influence of emission rates, microphysics and transport] Korhonen, H., Carslaw, K. S., and Romakkaniemi, S.: Enhancement of marine cloud albedo via controlled sea spray injections: a global model study of the influence of emission rates, microphysics and transport, Atmos. Chem. Phys., 10, 4133-4143, doi:10.5194/acp-10-4133-2010, 2010.
* [http://www.agu.org/pubs/crossref/2010/2009GL041320.shtml Aerosol climate feedback due to decadal increases in Southern Hemisphere wind speeds] Korhonen, H., K. S. Carslaw, P. M. Forster, S. Mikkonen, N. D. Gordon, and H. Kokkola (2010), Aerosol climate feedback due to decadal increases in Southern Hemisphere wind speeds, Geophys. Res. Lett., 37, L02805, doi:10.1029/2009GL041320.
* [http://www.atmos-chem-phys.org/10/365/2010/acp-10-365-2010.html The impact of dust on sulfate aerosol, CN and CCN during an East Asian dust storm] Manktelow, P. T., Carslaw, K. S., Mann, G. W., and Spracklen, D. V.: The impact of dust on sulfate aerosol, CN and CCN during an East Asian dust storm, Atmos. Chem. Phys., 10, 365-382, doi:10.5194/acp-10-365-2010, 2010.
* [http://www.geosci-model-dev.net/3/519/2010/gmd-3-519-2010.html Description and evaluation of GLOMAP-mode: a modal global aerosol microphysics model for the UKCA composition-climate model] Mann, G. W., Carslaw, K. S., Spracklen, D. V., Ridley, D. A., Manktelow, P. T., Chipperfield, M. P., Pickering, S. J., and Johnson, C. E.: Description and evaluation of GLOMAP-mode: a modal global aerosol microphysics model for the UKCA composition-climate model, Geosci. Model Dev., 3, 519-551, doi:10.5194/gmd-3-519-2010, 2010.
* [http://www.atmos-chem-phys.org/10/695/2010/acp-10-695-2010.html Effects of boundary layer particle formation on cloud droplet number and changes in cloud albedo from 1850 to 2000] Merikanto, J., Spracklen, D. V., Pringle, K. J., and Carslaw, K. S.: Effects of boundary layer particle formation on cloud droplet number and changes in cloud albedo from 1850 to 2000, Atmos. Chem. Phys., 10, 695-705, doi:10.5194/acp-10-695-2010, 2010.
* [http://www.agu.org/journals/jd/jd1017/2009JD013347/ Anthropogenic forcing of the Northern Annular Mode in CCMVal-2 models]: Morgenstern, O., H. Akiyoshi, S. Bekki, P. Braesicke, N. Butchart, M. P. Chipperfield, D. Cugnet, M. Deushi, S. S. Dhomse, R. R. Garcia, A. Gettelman, N. P. Gillett, S. C. Hardiman, J. Jumelet, D. E. Kinnison, J.-F. Lamarque, F. Lott, M. Marchand, M. Michou, T. Nakamura, D. Olivié, T. Peter, D. Plummer, J. A. Pyle, E. Rozanov, D. Saint-Martin, J. F. Scinocca, K. Shibata, M. Sigmond, D. Smale, H. Teyssèdre, W. Tian, A. Voldoire, and Y. Yamashita (2010), J. Geophys. Res., 115, D00M03, doi:10.1029/2009JD013347.
* [http://www.agu.org/journals/jd/jd1015/2009JD013728/ Review of the formulation of present-generation stratospheric chemistry-climate models and associated external forcings]: O. Morgenstern, M. A. Giorgetta, K. Shibata, V. Eyring, D. W. Waugh, T. G. Shepherd, H. Akiyoshi, J. Austin, A. J. G. Baumgaertner, S. Bekki, P. Braesicke, C. Brühl, M. P. Chipperfield, D. Cugnet, M. Dameris, S. Dhomse, S. M. Frith, H. Garny, A. Gettelman, S. C. Hardiman, M. I. Hegglin, P. Jöckel, D. E. Kinnison, J.-F. Lamarque, E. Mancini, E. Manzini, M. Marchand, M. Michou, T. Nakamura, J. E. Nielsen, D. Olivié, G. Pitari, D. A. Plummer, E. Rozanov, J. F. Scinocca, D. Smale, H. Teyssèdre, M. Toohey, W. Tian, and Y. Yamashita (2010), J. Geophys. Res., 115, D00M02, doi:10.1029/2009JD013728.
* [http://www.agu.org/pubs/crossref/2010/2010JD014206.shtml Evidence for changes in stratospheric transport and mixing over the past three decades based on multiple data sets and tropical leaky pipe analysis] Ray, E. A., et al. (2010), Evidence for changes in stratospheric transport and mixing over the past three decades based on multiple data sets and tropical leaky pipe analysis, J. Geophys. Res., 115, D21304, doi:10.1029/2010JD014206.
* [http://www.atmos-chem-phys.org/10/6025/2010/acp-10-6025-2010.html The impact of the 1783–1784 AD Laki eruption on global aerosol formation processes and cloud condensation nuclei] Schmidt, A., Carslaw, K. S., Mann, G. W., Wilson, M., Breider, T. J., Pickering, S. J., and Thordarson, T.: The impact of the 1783–1784 AD Laki eruption on global aerosol formation processes and cloud condensation nuclei, Atmos. Chem. Phys., 10, 6025-6041, doi:10.5194/acp-10-6025-2010, 2010.
* [http://www.agu.org/pubs/crossref/2010/2010JD014271.shtml Impact of stratospheric ozone on Southern Hemisphere circulation change: A multimodel assessment] Son, S.-W., et al. (2010), Impact of stratospheric ozone on Southern Hemisphere circulation change: A multimodel assessment, J. Geophys. Res., 115, D00M07, doi:10.1029/2010JD014271.
* [http://www.atmos-chem-phys.net/10/7117/2010/acp-10-7117-2010.html Effects of climate-induced changes in isoprene emissions after the eruption of Mount Pinatubo] Telford, P., J. Lathiere, N. L. Abraham, P. Braesicke, C. E. Johnson, O. Morgenstern, F. M. O'Connor, R. C. Pike, O. Wild, P. J. Young, D. Beerling, C. N. Hewitt and J. A. Pyle (2010), Effects of climate-induced changes in isoprene emissions after the eruption of Mount Pinatubo, Atmos. Chem. Phys., 10, 7117-7125, doi:10.5194/acp-10-7117-2010
* [http://www.atmos-chem-phys.org/10/7545/2010/acp-10-7545-2010.html Low sensitivity of cloud condensation nuclei to changes in the sea-air flux of dimethyl-sulphide] Woodhouse, M. T., Carslaw, K. S., Mann, G. W., Vallina, S. M., Vogt, M., Halloran, P. R., and Boucher, O.: Low sensitivity of cloud condensation nuclei to changes in the sea-air flux of dimethyl-sulphide, Atmos. Chem. Phys., 10, 7545-7559, doi:10.5194/acp-10-7545-2010, 2010.
* [http://www.agu.org/journals/gl/gl1009/2010GL042812/ Impact of stratospheric ozone recovery on tropospheric ozone and the oxidizing capacity]: Zeng, G., O. Morgenstern, P. Braesicke, and J. A. Pyle (2010), Geophys. Res. Lett., 37, L09805, doi:10.1029/2010GL042812.

==2009==

* [http://www.geosci-model-dev.net/2/43/2009/ Evaluation of the new UKCA climate-composition model – Part 1: The stratosphere]: Morgenstern, O., Braesicke, P., O'Connor, F. M., Bushell, A. C., Johnson, C. E., Osprey, S. M., and Pyle, J. A., Geosci. Model Dev., 2, 43-57, 2009.
* [http://www.agu.org/journals/gl/gl0916/2009GL039152/ Interactions between tropospheric chemistry and climate model temperature and humidity biases]: F. M. O'Connor, C. E. Johnson, O. Morgenstern, and W. J. Collins, Geophys. Res. Lett., 36, L16801, doi:10.1029/2009GL039152, 2009.
* [http://www.atmos-chem-phys.net/9/4251/2009/acp-9-4251-2009.html Reassessment of causes of ozone column variability following the eruption of Mount Pinatubo using a nudged CCM]: Telford, P., Braesicke, P., Morgenstern, O., and Pyle, J.: Reassessment of causes of ozone column variability following the eruption of Mount Pinatubo using a nudged CCM, Atmos. Chem. Phys., 9, 4251-4260, 2009.

==2008==

* [http://www.agu.org/pubs/crossref/2008/2007JD009718.shtml Influence of oceanic dimethyl sulfide emissions on cloud condensation nuclei concentrations and seasonality over the remote Southern Hemisphere oceans: A global model study]: Korhonen, H., K. S. Carslaw, D. V. Spracklen, G. W. Mann, and M. T. Woodhouse (2008), Influence of oceanic dimethyl sulfide emissions on cloud condensation nuclei concentrations and seasonality over the remote Southern Hemisphere oceans: A global model study, J. Geophys. Res., 113, D15204, doi:10.1029/2007JD009718.
* [http://www.agu.org/pubs/crossref/2008/2008GL034590.shtml The World Avoided by the Montreal Protocol]: Morgenstern, O., P. Braesicke, M. M. Hurwitz, F. M. O'Connor, A. C. Bushell, C. E. Johnson, and J. A. Pyle (2008), Geophys. Res. Lett., 35, L16811, doi:10.1029/2008GL034590.
* [http://www.atmos-chem-phys.net/8/1701/2008/acp-8-1701-2008.html Technical Note: Description and assessment of a nudged version of the new dynamics Unified Model]: Telford, P. J., Braesicke, P., Morgenstern, O., and Pyle, J. A.: Technical Note: Description and assessment of a nudged version of the new dynamics Unified Model, Atmos. Chem. Phys., 8, 1701-1712, 2008.
* [http://www.agu.org/pubs/crossref/2008/2007GL033038.shtml Contribution of particle formation to global cloud condensation nuclei concentrations]: Spracklen, D. V., et al. (2008), Contribution of particle formation to global cloud condensation nuclei concentrations, Geophys. Res. Lett., 35, L06808, doi:10.1029/2007GL033038.
* [http://www.sciencedirect.com/science/article/B6VH3-4SMNY0J-1/2/4a88e04ab0cac2c4069c19ac12c2c42f New Directions: The impact of oceanic iron fertilisation on cloud condensation nuclei]: Matthew T. Woodhouse, Graham W. Mann, Kenneth S. Carslaw, Olivier Boucher, New Directions: The impact of oceanic iron fertilisation on cloud condensation nuclei, Atmospheric Environment, Volume 42, Issue 22, July 2008, Pages 5728-5730, ISSN 1352-2310, DOI: 10.1016/j.atmosenv.2008.05.005.

==2007==

* [http://www.agu.org/pubs/crossref/2007/2006GL028668.shtml Regional and global trends in sulfate aerosol since the 1980s]: Manktelow, P. T., G. W. Mann, K. S. Carslaw, D. V. Spracklen, and M. P. Chipperfield (2007), Regional and global trends in sulfate aerosol since the 1980s, Geophys. Res. Lett., 34, L14803, doi:10.1029/2006GL028668.
* [http://www.atmos-chem-phys.net/7/2073/2007/acp-7-2073-2007.html Evaluation of a global aerosol microphysics model against size-resolved particle statistics in the marine atmosphere]: Spracklen, D. V., Pringle, K. J., Carslaw, K. S., Mann, G. W., Manktelow, P., and Heintzenberg, J.: Evaluation of a global aerosol microphysics model against size-resolved particle statistics in the marine atmosphere, Atmos. Chem. Phys., 7, 2073-2090, 2007.

Publications

2014-06-18T13:42:34Z

Alex:

==List of UKCA Publications==

Here is a list of Publications (by year) which use the UKCA Model:

== 2014 ==
* [http://http://www.atmos-chem-phys.net/14/1011/2014/acp-14-1011-2014.html Influence of future climate and cropland expansion on isoprene emissions and tropospheric ozone] Squire, O. J., Archibald, A. T., Abraham, N. L., Beerling, D. J., Hewitt, C. N., Lathière, J., Pike, R. C., Telford, P. J., and Pyle, J. A. Atmos. Chem. Phys., 14, 1011-1024, doi:10.5194/acp-14-1011-2014, 2014.
* [http://www.geosci-model-dev.net/7/41/2014/gmd-7-41-2014.html Evaluation of the new UKCA climate-composition model. Part II. The troposphere]. F.M. O'Connor, C.E. Johnson, O. Morgenstern, N.L. Abraham, P. Braesicke, M. Dalvi, G.A. Folberth, M.G. Sanderson, P.J. Telford, A. Voulgarakis, P.J. Young, G. Zeng, W.J. Collins, and J.A. Pyle, Geosci. Model Dev., 7, 41-91, 2014.

== 2013 ==
* [http://www.atmos-chem-phys.net/13/3027/2013/acp-13-3027-2013.pdf Impact of the modal aerosol scheme GLOMAP-mode on aerosol forcing in the Hadley Centre Global Environmental Model]. N. Bellouin, G. W. Mann, M. T. Woodhouse, C. Johnson, K. S. Carslaw, and M. Dalvi, Atmos. Chem. Phys., 13, 3027-3044, doi:10.5194/acp-13-3027-2013, 2013.
* [http://www.atmos-chem-phys-discuss.net/13/8455/2013/acpd-13-8455-2013.html Consistent circulation differences in the Southern Hemisphere caused by ozone changes: a chemistry-climate model and observational study] Braesicke, P., Keeble, J., Yang, X., Stiller, G., Kellmann, S., Abraham, N. L., Archibald, A. T., Telford, P., and Pyle, J. A. Atmos. Chem. Phys. Discuss., 13, 8455-8487, doi:10.5194/acpd-13-8455-2013, 2013.
* [http://www.atmos-chem-phys.net/13/5969/2013/acp-13-5969-2013.html Constraints on aerosol processes in climate models from vertically-resolved aircraft observations of black carbon]. Z. Kipling, P. Stier, J. P. Schwarz, A. E. Perring, J. R. Spackman, G. W. Mann, C. E. Johnson, and P. J. Telford, Atmos. Chem. Phys., 13, 5969-5986, doi:10.5194/acp-13-5969-2013, 2013.
* [http://onlinelibrary.wiley.com/doi/10.1029/2012JD018382/ Impacts of climate change, ozone recovery, and increasing methane on surface ozone and the tropospheric oxidizing capacity] Olaf Morgenstern, Guang Zeng, N. Luke Abraham, Paul J. Telford, Peter Braesicke, John A. Pyle, Steven C. Hardiman, Fiona M. O'Connor, Colin E. Johnson, Journal of Geophysical Research: Atmospheres Volume 118, Issue 2, pages 1028–1041, 27 January 2013
* [http://www.geosci-model-dev-discuss.net/6/1743/2013/gmdd-6-1743-2013.html Evaluation of the new UKCA climate-composition model. Part II. The troposphere]. F.M. O'Connor, C.E. Johnson, O. Morgenstern, N.L. Abraham, P. Braesicke, M. Dalvi, G.A. Folberth, M.G. Sanderson, P.J. Telford, P.J. Young, G. Zeng, W.J. Collins, and J.A. Pyle, Geosci. Model Dev. Disc., 6, 1743-1857, 2013.
* [http://www.geosci-model-dev.net/6/353/2013/gmd-6-353-2013.html Air quality modelling using the Met Office Unified Model (AQUM OS24-26): model description and initial evaluation]. Savage, N. H., Agnew, P., Davis, L. S., Ordóñez, C., Thorpe, R., Johnson, C. E., O'Connor, F. M., and Dalvi, M., Geosci. Model Dev., 6, 353-372, doi:10.5194/gmd-6-353-2013, 2013.
* [http://www.atmos-chem-phys-discuss.net/13/18307/2013/acpd-13-18307-2013.html Influence of future climate and cropland expansion on isoprene emissions and tropospheric ozone] Squire, O. J., Archibald, A. T., Beerling, D. J., Hewitt, C. N., Lathière, J., Pike, R. C., Telford, P. J., and Pyle, J. A. Atmos. Chem. Phys. Discuss., 13, 18307-18344, doi:10.5194/acpd-13-18307-2013, 2013.
* [http://www.atmos-chem-phys.net/13/12215/2013/acp-13-12215-2013.html Modelling the impact of megacities on local, regional and global tropospheric ozone and the deposition of nitrogen species]. Stock, Z. S., Russo, M. R., Butler, T. M., Archibald, A. T., Lawrence, M. G., Telford, P. J., Abraham, N. L., and Pyle, J. A. Atmos. Chem. Phys., 13, 12215-12231, doi:10.5194/acp-13-12215-2013, 2013.
* [http://www.atmos-chem-phys-discuss.net/13/27423/2013/acpd-13-27423-2013.html Representing ozone extremes in European megacities: the importance of resolution in a global chemistry climate model]. Stock, Z. S., Russo, M. R., and Pyle, J. A. Atmos. Chem. Phys. Discuss., 13, 27423-27458, doi:10.5194/acpd-13-27423-2013, 2013.
* [http://www.geosci-model-dev.net/6/161/2013/gmd-6-161-2013.html Implementation of the Fast-JX Photolysis scheme (v6.4) into the UKCA component of the MetUM chemistry-climate model (v7.3)]. P. J. Telford, N. L. Abraham, A. T. Archibald, P. Braesicke, M. Dalvi, O. Morgenstern, F. M. O'Connor, N. A. D. Richards, and J. A. Pyle. Geosci. Model Dev., 6, 161-177, 2013.
* [http://www.atmos-chem-phys.net/13/2723/2013/acp-13-2723-2013.html Sensitivity of cloud condensation nuclei to regional changes in dimethyl-sulphide emissions]. M. T. Woodhouse, G. W. Mann, K. S. Carslaw and O. Boucher, Atmos. Chem. Phys., 13, 2723-2733. doi: 10.5194/acp-13-2723-2013, 2013.

== 2012 ==

* [http://www.atmos-chem-phys.net/12/6775/2012/acp-12-6775-2012.html The scavenging processes controlling the seasonal cycle in Arctic sulphate and black carbon aerosol]. J. Browse, K. S. Carslaw, S. R. Arnold, K. Pringle, and O. Boucher, Atmos. Chem. Phys., 12, 6775-6798, 2012.

* [http://www.atmos-chem-phys.net/12/11573/2012/acp-12-11573-2012.html No statistically significant effect of a short-term decrease in the nucleation rate on atmospheric aerosols]. E. M. Dunne, L. A. Lee, C. L. Reddington, and K. S. Carslaw, Atmos. Chem. Phys., 12, 11573-11587, 2012.

* [http://www.agu.org/journals/gl/gl1220/2012GL053401/index.shtml Modelling future changes to the stratospheric source gas injection of biogenic bromocarbons]. Hossaini, R., et al., Geophys. Res. Lett., 39, L20813, 2012.

* [http://www.atmos-chem-phys.net/12/9739/2012/acp-12-9739-2012.html Mapping the uncertainty in global CCN using emulation]. L. A. Lee, K. S. Carslaw, K. J. Pringle, and G. W. Mann, Atmos. Chem. Phys., 12, 9739-9751, 2012

* [http://www.atmos-chem-phys.net/12/4449/2012/acp-12-4449-2012.pdf Intercomparison of modal and sectional aerosol microphysics representations within the same 3-D global chemical transport model]. G. W. Mann, K. S. Carslaw, D. A. Ridley, D. V. Spracklen, K. J. Pringle, J. Merikanto, H. Korhonen, J. P. Schwarz, L. A. Lee, P. T. Manktelow, M. T. Woodhouse, A. Schmidt, T. J. Breider, K. M. Emmerson, C. L. Reddington, M. P. Chipperfield, and S. J. Pickering, Atmos. Chem. Phys., 12, 4449–4476, 2012.

*[http://www.agu.org/journals/jd/jd1222/2012JD018276/ Sensitivity of biogenic isoprene emissions to past, present, and future environmental conditions and implications for atmospheric chemistry]. Pacifico, F., G. A. Folberth, C. D. Jones, S. P. Harrison, and W. J. Collins, J. Geophys. Res., 117, D22302, doi:10.1029/2012JD018276, 2012.

* [http://www.atmos-chem-phys-discuss.net/12/7125/2012/acpd-12-7125-2012.html A multi-model assessment of the efficacy of sea spray geoengineering]. K. J. Pringle, K. S. Carslaw, T. Fan, G.W. Mann, A. Hill, P. Stier, K. Zhang, and H. Tost, Atmos. Chem. Phys. Discuss., 12, 7125-7166, 2012.

* [http://www.atmos-chem-phys-discuss.net/12/26503/2012/acpd-12-26503-2012.pdf The size distribution and mixing state of black carbon aerosol over Europe]. C. L. Reddington, G. McMeeking, G. W. Mann, H. Coe, M. G. Frontoso, D. Liu, M. Flynn, D. V. Spracklen, and K. S. Carslaw, Atmos. Chem. Phys. Discuss., 12, 26503-26560, 2012.

* [http://www.atmos-chem-phys.net/12/7321/2012/acp-12-7321-2012.pdf Importance of tropospheric volcanic aerosol for indirect radiative forcing of climate]. A. Schmidt, K. S. Carslaw, G. W. Mann, A. Rap, K. J. Pringle, D. V. Spracklen, M. Wilson, and P. M. Forster, Atmos. Chem. Phys., 12, 7321-7339, 2012.

* [http://www.atmos-chem-phys-discuss.net/12/27395/2012/acpd-12-27395-2012.pdf Sensitivity of cloud condensation nuclei to regional changes in dimethyl-sulphide emissions]. M. T. Woodhouse, G. W. Mann, K. S. Carslaw, and O. Boucher, Atmos. Chem. Phys. Discuss., 12, 27395-27423, 2012.

==2011==

* [http://www.pnas.org/content/108/38/15710.full.pdf+html Excess mortality in Europe following a future Laki-style Icelandic eruption]. A. Schmidt, B. Ostro, K. S. Carslaw, M. Wilson, T. Thordarson, G. W. Mann and A. J. Simmons, Proceedings of the National Academy of Sciences, USA, vol. 108 ∣ no. 38, pp. 15710–15715, 2011.
* [http://www.atmos-chem-phys.net/11/12253/2011/acp-11-12253-2011.pdf Emulation of a complex global aerosol model to quantify sensitivity to uncertain parameters]. L. A. Lee, K. S. Carslaw, K. J. Pringle, G. W. Mann, and D. V. Spracklen, Atmos. Chem. Phys., 11, 12253-12273, 2011.
* [http://www.agu.org/pubs/crossref/2011/2010GL046520.shtml Impacts of HOx regeneration and recycling in the oxidation of isoprene: Consequences for the composition of past, present and future atmospheres] A. T. Archibald, J. G. Levine, N. L. Abraham, M. C. Cooke, P. M. Edwards, D. E. Heard, M. E. Jenkin, A. Karunaharan, R. C. Pike, P. S. Monks, D. E. Shallcross, P. J. Telford, L. K. Whalley, and J. A. Pyle, Geophys. Res. Lett. , 38 , L05804, doi:10.1029/2010GL046520
* [http://www.agu.org/pubs/crossref/2011/2010GL046228.shtml Ozone concentration changes in the Asian summer monsoon anticyclone and lower stratospheric water vapour: An idealised model study]: ,Braesicke, P., O. J. Smith, P. Telford, and J. A. Pyle (2011), Geophys. Res. Lett., 38, 10.1029/2010GL046228, L03810.
* [http://www.geosci-model-dev.net/4/1051/2011/ Development and evaluation of an Earth-system model - HadGEM2] W. J. Collins, N. Bellouin, M. Doutriaux-Boucher, N. Gedney, P. Halloran, T. Hinton, J. Hughes, C. D. Jones, M. Joshi, S. Liddicoat, G. Martin, F. O'Connor, J. Rae, C. Senior, S. Sitch, I. Totterdell, A. Wiltshire, and S. Woodward, Geosci. Model Dev., 4, 1051-1075, 2011.
* [http://dx.doi.org/10.5194/acp-11-599-2011 Attribution of observed changes in stratospheric ozone and temperature] Gillett, N. P., Akiyoshi, H., Bekki, S., Braesicke, P., Eyring, V., Garcia, R., Karpechko, A. Yu., McLinden, C. A., Morgenstern, O., Plummer, D. A., Pyle, J. A., Rozanov, E., Scinocca, J., and Shibata, K., (2011), Atmos. Chem. Phys., 10.5194/acp-11-599-2011 11, 599-609
* [http://www.geosci-model-dev.net/4/543/2011/ The HadGEM2-ES implementation of CMIP5 centennial simulations] C. D. Jones, J. K. Hughes, N. Bellouin, S. C. Hardiman, G. S. Jones, J. Knight, S. Liddicoat, F. M. O'Connor, R. J. Andres, C. Bell, K.-O. Boo, A. Bozzo, N. Butchart, P. Cadule, K. D. Corbin, M. Doutriaux-Boucher, P. Friedlingstein, J. Gornall, L. Gray, P. R. Halloran, G. Hurtt, W. J. Ingram, J.-F. Lamarque, R. M. Law, M. Meinshausen, S. Osprey, E. J. Palin, L. Parsons Chini, T. Raddatz, M. G. Sanderson, A. A. Sellar, A. Schurer, P. Valdes, N. Wood, S. Woodward, M. Yoshioka, and M. Zerroukat, Geosci. Model Dev., 4, 543-570, 2011.
* [http://www.atmos-chem-phys-discuss.net/11/9057/2011/acpd-11-9057-2011.pdf Large methane releases lead to strong aerosol forcing and reduced cloudiness] T. Kurtén, L. Zhou, R. Makkonen, J. Merikanto, P. Räisänen, M. Boy, N. Richards, A. Rap, S. Smolander, A. Sogachev, A. Guenther, G. W. Mann, K. Carslaw, and M. Kulmala (2011), Atmos. Chem. Phys. Discuss., 11, 9057-9081.
*[http://www.geosci-model-dev.net/4/723/2011/ The HadGEM2 family of Met Office Unified Model climate configurations] The HadGEM2 Development Team: G. M. Martin, Bellouin, N., Collins, W. J., Culverwell, I. D., Halloran, P. R., Hardiman, S. C., Hinton, T. J., Jones, C. D., McDonald, R. E., McLaren, A. J., O'Connor, F. M., Roberts, M. J., Rodriguez, J.M., Woodward, S., Best, M. J., Brooks, M. E., Brown, A. R., Butchart, N., Dearden, C., Derbyshire, S. H., Dharssi, I., Doutriaux-Boucher, M., Edwards, J. M., Falloon, P. D., Gedney, N., Gray, L. J., Hewitt, H. T., Hobson, M., Huddleston, M. R., Hughes, J., Ineson, S., Ingram, W. J., James, P. M., Johns, T. C., Johnson, C. E., Jones, A., Jones, C. P., Joshi, M. M., Keen, A. B., Liddicoat, S., Lock, A. P., Maidens, A. V., Manners, J. C., Milton, S. F., Rae, J. G. L., Ridley, J. K., Sellar, A., Senior, C. A., Totterdell, I. J., Verhoef, A., Vidale, P. L., and Wiltshire, A., Geosci. Model Dev., 4, 723-757, 2011.
* [http://www.atmos-chem-phys.net/11/2765/2011/acp-11-2765-2011.html Representation of tropical deep convection in atmospheric models – Part 1: Meteorology and comparison with satellite observations],Russo, M. R., Marécal, V., Hoyle, C. R., Arteta, J., Chemel, C., Chipperfield, M. P., Dessens, O., Feng, W., Hosking, J. S., Telford, P. J., Wild, O., Yang, X., and Pyle, J. A, Atmos. Chem. Phys., 11, doi:10.5194/acp-11-2765-2011, 2765-2786.
* [http://www.atmos-chem-phys.net/11/8459/2011/acp-11-8459-2011.pdf Minor effect of physical size sorting on iron solubility of transported mineral dust] Z. B. Shi, M. T. Woodhouse, K. S. Carslaw, M. D. Krom, G. W. Mann, A. R. Baker, I. Savov, G. Fones, B. Brooks, T. D. Jickells, and L. G. Benning, Atmos. Chem. Phys., 11, 8459-8469, 2011.
* [http://www.agu.org/pubs/crossref/2011/2010GB003837.shtml Influence of chemical weathering and aging of iron oxides on the potential iron solubility of Saharan dust during simulated atmospheric processing] Z. B. Shi, M. Krom, S. Bonneville, A. R. Baker, C. Bristow, N. Drake, G. W. Mann, K. S. Carslaw, J. B. McQuaid, T. Jickells, L. G. Benning, Global Biogeochem. Cycles, doi:10.1029/2010GB003837, 2011.
* [http://www.atmos-chem-phys.net/11/12109/2011/acp-11-12109-2011.pdf Aerosol mass spectrometer constraint on the global secondary organic aerosol budget] D. V. Spracklen, J. L. Jimenez, K. S. Carslaw, D. R. Worsnop, M. J. Evans, G. W. Mann, Q. Zhang, M. R. Canagaratna, J. Allan, H. Coe, G. McFiggans, A. Rap, and P. Forster (2011), Atmos. Chem. Phys., 11, 12109-12136, 2011.
* [http://www.atmos-chem-phys.net/11/9067/2011/acp-11-9067-2011.pdf Global cloud condensation nuclei influenced by carbonaceous combustion aerosol] D. V. Spracklen, K. S. Carslaw, U. Poeschl, A. Rap, and P. M. Forster (2011), Atmos. Chem. Phys., 11, 9067-9087, 2011.
* [http://www.atmos-chem-phys.net/11/5819/2011/acp-11-5819-2011.html Global multi-year O3-CO correlation patterns from models and TES satellite observations] A. Voulgarakis, P. J. Telford, A. M. Aghedo, P. Braesicke, G. Faluvegi, N. L. Abraham, K. W. Bowman, J. A. Pyle, and D. T. Shindell, (2011), Atmos. Chem. Phys., 11, 5819-5838, doi:10.5194/acp-11-5819-2011

==2010==

* [http://www.agu.org/pubs/crossref/2010/2009JD013577.shtml Chemistry-climate model simulations of spring Antarctic ozone]: Austin, J., et al. (2010), Chemistry-climate model simulations of spring Antarctic ozone, J. Geophys. Res., 115, D00M11, doi:10.1029/2009JD013577.
* [http://www.agu.org/pubs/crossref/2010/2010JD013857.shtml Decline and recovery of total column ozone using a multimodel time series analysis]: Austin, J., et al. (2010), Decline and recovery of total column ozone using a multimodel time series analysis, J. Geophys. Res., 115, D00M10, doi:10.1029/2010JD013857.
* [http://www.agu.org/pubs/crossref/2010/2009GL040868.shtml Impact of BrO on dimethylsulfide in the remote marine boundary layer] Breider, T. J., M. P. Chipperfield, N. A. D. Richards, K. S. Carslaw, G. W. Mann, and D. V. Spracklen (2010), Impact of BrO on dimethylsulfide in the remote marine boundary layer, Geophys. Res. Lett., 37, L02807, doi:10.1029/2009GL040868.
* [http://www.atmos-chem-phys.net/10/9473/2010/acp-10-9473-2010.html The potential to narrow uncertainty in projections of stratospheric ozone over the 21st century]: Charlton-Perez, A. J., Hawkins, E., Eyring, V., Cionni, I., Bodeker, G. E., Kinnison, D. E., Akiyoshi, H., Frith, S. M., Garcia, R., Gettelman, A., Lamarque, J. F., Nakamura, T., Pawson, S., Yamashita, Y., Bekki, S., Braesicke, P., Chipperfield, M. P., Dhomse, S., Marchand, M., Mancini, E., Morgenstern, O., Pitari, G., Plummer, D., Pyle, J. A., Rozanov, E., Scinocca, J., Shibata, K., Shepherd, T. G., Tian, W., and Waugh, D. W.: The potential to narrow uncertainty in projections of stratospheric ozone over the 21st century, Atmos. Chem. Phys., 10, 9473-9486, doi:10.5194/acp-10-9473-2010, 2010
* [http://www.atmosp.physics.utoronto.ca/SPARC SPARC CCMVal (2010), SPARC CCMVal Report on the Evaluation of Chemistry-Climate Models]: V. Eyring, T. G. Shepherd, D. W. Waugh (eds.), SPARC CCMVal (2010), SPARC CCMVal Report on the Evaluation of Chemistry-Climate Models, SPARC Report No. 5, WCRP-X, WMO/TD-No. X.
* [http://www.atmos-chem-phys.net/10/9451/2010/acp-10-9451-2010.html Multi-model assessment of stratospheric ozone return dates and ozone recovery in CCMVal-2 models] Eyring, V., Cionni, I., Bodeker, G. E., Charlton-Perez, A. J., Kinnison, D. E., Scinocca, J. F., Waugh, D. W., Akiyoshi, H., Bekki, S., Chipperfield, M. P., Dameris, M., Dhomse, S., Frith, S. M., Garny, H., Gettelman, A., Kubin, A., Langematz, U., Mancini, E., Marchand, M., Nakamura, T., Oman, L. D., Pawson, S., Pitari, G., Plummer, D. A., Rozanov, E., Shepherd, T. G., Shibata, K., Tian, W., Braesicke, P., Hardiman, S. C., Lamarque, J. F., Morgenstern, O., Pyle, J. A., Smale, D., and Yamashita, Y.: Multi-model assessment of stratospheric ozone return dates and ozone recovery in CCMVal-2 models, Atmos. Chem. Phys., 10, 9451-9472, doi:10.5194/acp-10-9451-2010, 2010.
* [http://www.agu.org/pubs/crossref/2010/2009JD013770.shtml Stratosphere-troposphere coupling and annular mode variability in chemistry-climate models] Gerber, E. P., et al. (2010), Stratosphere-troposphere coupling and annular mode variability in chemistry-climate models, J. Geophys. Res., 115, D00M06, doi:10.1029/2009JD013770.
* [http://www.agu.org/pubs/crossref/2010/2010JD013884.shtml Multimodel assessment of the upper troposphere and lower stratosphere: Extratropics] Hegglin, M. I., et al. (2010), Multimodel assessment of the upper troposphere and lower stratosphere: Extratropics, J. Geophys. Res., 115, D00M09, doi:10.1029/2010JD013884.
* [http://www.agu.org/journals/jd/jd1007/2009JD012788/ Assessment of the breakup of the Antarctic polar vortex in two new chemistry-climate models]: Hurwitz, M. M., P. A. Newman, F. Li, L. D. Oman, O. Morgenstern, P. Braesicke, and J. A. Pyle (2010), Assessment of the breakup of the Antarctic polar vortex in two new chemistry-climate models, J. Geophys. Res., 115, D07105, doi:10.1029/2009JD012788.
* [http://www.atmos-chem-phys.org/10/4133/2010/acp-10-4133-2010.html Enhancement of marine cloud albedo via controlled sea spray injections: a global model study of the influence of emission rates, microphysics and transport] Korhonen, H., Carslaw, K. S., and Romakkaniemi, S.: Enhancement of marine cloud albedo via controlled sea spray injections: a global model study of the influence of emission rates, microphysics and transport, Atmos. Chem. Phys., 10, 4133-4143, doi:10.5194/acp-10-4133-2010, 2010.
* [http://www.agu.org/pubs/crossref/2010/2009GL041320.shtml Aerosol climate feedback due to decadal increases in Southern Hemisphere wind speeds] Korhonen, H., K. S. Carslaw, P. M. Forster, S. Mikkonen, N. D. Gordon, and H. Kokkola (2010), Aerosol climate feedback due to decadal increases in Southern Hemisphere wind speeds, Geophys. Res. Lett., 37, L02805, doi:10.1029/2009GL041320.
* [http://www.atmos-chem-phys.org/10/365/2010/acp-10-365-2010.html The impact of dust on sulfate aerosol, CN and CCN during an East Asian dust storm] Manktelow, P. T., Carslaw, K. S., Mann, G. W., and Spracklen, D. V.: The impact of dust on sulfate aerosol, CN and CCN during an East Asian dust storm, Atmos. Chem. Phys., 10, 365-382, doi:10.5194/acp-10-365-2010, 2010.
* [http://www.geosci-model-dev.net/3/519/2010/gmd-3-519-2010.html Description and evaluation of GLOMAP-mode: a modal global aerosol microphysics model for the UKCA composition-climate model] Mann, G. W., Carslaw, K. S., Spracklen, D. V., Ridley, D. A., Manktelow, P. T., Chipperfield, M. P., Pickering, S. J., and Johnson, C. E.: Description and evaluation of GLOMAP-mode: a modal global aerosol microphysics model for the UKCA composition-climate model, Geosci. Model Dev., 3, 519-551, doi:10.5194/gmd-3-519-2010, 2010.
* [http://www.atmos-chem-phys.org/10/695/2010/acp-10-695-2010.html Effects of boundary layer particle formation on cloud droplet number and changes in cloud albedo from 1850 to 2000] Merikanto, J., Spracklen, D. V., Pringle, K. J., and Carslaw, K. S.: Effects of boundary layer particle formation on cloud droplet number and changes in cloud albedo from 1850 to 2000, Atmos. Chem. Phys., 10, 695-705, doi:10.5194/acp-10-695-2010, 2010.
* [http://www.agu.org/journals/jd/jd1017/2009JD013347/ Anthropogenic forcing of the Northern Annular Mode in CCMVal-2 models]: Morgenstern, O., H. Akiyoshi, S. Bekki, P. Braesicke, N. Butchart, M. P. Chipperfield, D. Cugnet, M. Deushi, S. S. Dhomse, R. R. Garcia, A. Gettelman, N. P. Gillett, S. C. Hardiman, J. Jumelet, D. E. Kinnison, J.-F. Lamarque, F. Lott, M. Marchand, M. Michou, T. Nakamura, D. Olivié, T. Peter, D. Plummer, J. A. Pyle, E. Rozanov, D. Saint-Martin, J. F. Scinocca, K. Shibata, M. Sigmond, D. Smale, H. Teyssèdre, W. Tian, A. Voldoire, and Y. Yamashita (2010), J. Geophys. Res., 115, D00M03, doi:10.1029/2009JD013347.
* [http://www.agu.org/journals/jd/jd1015/2009JD013728/ Review of the formulation of present-generation stratospheric chemistry-climate models and associated external forcings]: O. Morgenstern, M. A. Giorgetta, K. Shibata, V. Eyring, D. W. Waugh, T. G. Shepherd, H. Akiyoshi, J. Austin, A. J. G. Baumgaertner, S. Bekki, P. Braesicke, C. Brühl, M. P. Chipperfield, D. Cugnet, M. Dameris, S. Dhomse, S. M. Frith, H. Garny, A. Gettelman, S. C. Hardiman, M. I. Hegglin, P. Jöckel, D. E. Kinnison, J.-F. Lamarque, E. Mancini, E. Manzini, M. Marchand, M. Michou, T. Nakamura, J. E. Nielsen, D. Olivié, G. Pitari, D. A. Plummer, E. Rozanov, J. F. Scinocca, D. Smale, H. Teyssèdre, M. Toohey, W. Tian, and Y. Yamashita (2010), J. Geophys. Res., 115, D00M02, doi:10.1029/2009JD013728.
* [http://www.agu.org/pubs/crossref/2010/2010JD014206.shtml Evidence for changes in stratospheric transport and mixing over the past three decades based on multiple data sets and tropical leaky pipe analysis] Ray, E. A., et al. (2010), Evidence for changes in stratospheric transport and mixing over the past three decades based on multiple data sets and tropical leaky pipe analysis, J. Geophys. Res., 115, D21304, doi:10.1029/2010JD014206.
* [http://www.atmos-chem-phys.org/10/6025/2010/acp-10-6025-2010.html The impact of the 1783–1784 AD Laki eruption on global aerosol formation processes and cloud condensation nuclei] Schmidt, A., Carslaw, K. S., Mann, G. W., Wilson, M., Breider, T. J., Pickering, S. J., and Thordarson, T.: The impact of the 1783–1784 AD Laki eruption on global aerosol formation processes and cloud condensation nuclei, Atmos. Chem. Phys., 10, 6025-6041, doi:10.5194/acp-10-6025-2010, 2010.
* [http://www.agu.org/pubs/crossref/2010/2010JD014271.shtml Impact of stratospheric ozone on Southern Hemisphere circulation change: A multimodel assessment] Son, S.-W., et al. (2010), Impact of stratospheric ozone on Southern Hemisphere circulation change: A multimodel assessment, J. Geophys. Res., 115, D00M07, doi:10.1029/2010JD014271.
* [http://www.atmos-chem-phys.net/10/7117/2010/acp-10-7117-2010.html Effects of climate-induced changes in isoprene emissions after the eruption of Mount Pinatubo] Telford, P., J. Lathiere, N. L. Abraham, P. Braesicke, C. E. Johnson, O. Morgenstern, F. M. O'Connor, R. C. Pike, O. Wild, P. J. Young, D. Beerling, C. N. Hewitt and J. A. Pyle (2010), Effects of climate-induced changes in isoprene emissions after the eruption of Mount Pinatubo, Atmos. Chem. Phys., 10, 7117-7125, doi:10.5194/acp-10-7117-2010
* [http://www.atmos-chem-phys.org/10/7545/2010/acp-10-7545-2010.html Low sensitivity of cloud condensation nuclei to changes in the sea-air flux of dimethyl-sulphide] Woodhouse, M. T., Carslaw, K. S., Mann, G. W., Vallina, S. M., Vogt, M., Halloran, P. R., and Boucher, O.: Low sensitivity of cloud condensation nuclei to changes in the sea-air flux of dimethyl-sulphide, Atmos. Chem. Phys., 10, 7545-7559, doi:10.5194/acp-10-7545-2010, 2010.
* [http://www.agu.org/journals/gl/gl1009/2010GL042812/ Impact of stratospheric ozone recovery on tropospheric ozone and the oxidizing capacity]: Zeng, G., O. Morgenstern, P. Braesicke, and J. A. Pyle (2010), Geophys. Res. Lett., 37, L09805, doi:10.1029/2010GL042812.

==2009==

* [http://www.geosci-model-dev.net/2/43/2009/ Evaluation of the new UKCA climate-composition model – Part 1: The stratosphere]: Morgenstern, O., Braesicke, P., O'Connor, F. M., Bushell, A. C., Johnson, C. E., Osprey, S. M., and Pyle, J. A., Geosci. Model Dev., 2, 43-57, 2009.
* [http://www.agu.org/journals/gl/gl0916/2009GL039152/ Interactions between tropospheric chemistry and climate model temperature and humidity biases]: F. M. O'Connor, C. E. Johnson, O. Morgenstern, and W. J. Collins, Geophys. Res. Lett., 36, L16801, doi:10.1029/2009GL039152, 2009.
* [http://www.atmos-chem-phys.net/9/4251/2009/acp-9-4251-2009.html Reassessment of causes of ozone column variability following the eruption of Mount Pinatubo using a nudged CCM]: Telford, P., Braesicke, P., Morgenstern, O., and Pyle, J.: Reassessment of causes of ozone column variability following the eruption of Mount Pinatubo using a nudged CCM, Atmos. Chem. Phys., 9, 4251-4260, 2009.

==2008==

* [http://www.agu.org/pubs/crossref/2008/2007JD009718.shtml Influence of oceanic dimethyl sulfide emissions on cloud condensation nuclei concentrations and seasonality over the remote Southern Hemisphere oceans: A global model study]: Korhonen, H., K. S. Carslaw, D. V. Spracklen, G. W. Mann, and M. T. Woodhouse (2008), Influence of oceanic dimethyl sulfide emissions on cloud condensation nuclei concentrations and seasonality over the remote Southern Hemisphere oceans: A global model study, J. Geophys. Res., 113, D15204, doi:10.1029/2007JD009718.
* [http://www.agu.org/pubs/crossref/2008/2008GL034590.shtml The World Avoided by the Montreal Protocol]: Morgenstern, O., P. Braesicke, M. M. Hurwitz, F. M. O'Connor, A. C. Bushell, C. E. Johnson, and J. A. Pyle (2008), Geophys. Res. Lett., 35, L16811, doi:10.1029/2008GL034590.
* [http://www.atmos-chem-phys.net/8/1701/2008/acp-8-1701-2008.html Technical Note: Description and assessment of a nudged version of the new dynamics Unified Model]: Telford, P. J., Braesicke, P., Morgenstern, O., and Pyle, J. A.: Technical Note: Description and assessment of a nudged version of the new dynamics Unified Model, Atmos. Chem. Phys., 8, 1701-1712, 2008.
* [http://www.agu.org/pubs/crossref/2008/2007GL033038.shtml Contribution of particle formation to global cloud condensation nuclei concentrations]: Spracklen, D. V., et al. (2008), Contribution of particle formation to global cloud condensation nuclei concentrations, Geophys. Res. Lett., 35, L06808, doi:10.1029/2007GL033038.
* [http://www.sciencedirect.com/science/article/B6VH3-4SMNY0J-1/2/4a88e04ab0cac2c4069c19ac12c2c42f New Directions: The impact of oceanic iron fertilisation on cloud condensation nuclei]: Matthew T. Woodhouse, Graham W. Mann, Kenneth S. Carslaw, Olivier Boucher, New Directions: The impact of oceanic iron fertilisation on cloud condensation nuclei, Atmospheric Environment, Volume 42, Issue 22, July 2008, Pages 5728-5730, ISSN 1352-2310, DOI: 10.1016/j.atmosenv.2008.05.005.

==2007==

* [http://www.agu.org/pubs/crossref/2007/2006GL028668.shtml Regional and global trends in sulfate aerosol since the 1980s]: Manktelow, P. T., G. W. Mann, K. S. Carslaw, D. V. Spracklen, and M. P. Chipperfield (2007), Regional and global trends in sulfate aerosol since the 1980s, Geophys. Res. Lett., 34, L14803, doi:10.1029/2006GL028668.
* [http://www.atmos-chem-phys.net/7/2073/2007/acp-7-2073-2007.html Evaluation of a global aerosol microphysics model against size-resolved particle statistics in the marine atmosphere]: Spracklen, D. V., Pringle, K. J., Carslaw, K. S., Mann, G. W., Manktelow, P., and Heintzenberg, J.: Evaluation of a global aerosol microphysics model against size-resolved particle statistics in the marine atmosphere, Atmos. Chem. Phys., 7, 2073-2090, 2007.

Minutes of the chemistry working group meeting 19/3/2014

2014-03-19T16:31:26Z

Alex:

Minutes of Skype held on 19/3/2014 – 15:00 GMT
Present: NLA, ATA, FOC, GAF and MD

'''Discussion on the role of this working group:''' This group, as with many of the working groups, is operating in a responsive mode to make progress on model issues. We see that a major aim of this group for the future is to be able to help steer and provide input to make long-term strategic improvements. As there are an increasing number of working groups we are mindful that people don’t want to get sucked into spending all their time in meetings, but it’s important that there is a good dialogue between the different working groups.

'''Reserved business:'''

1) Modifications to previous minutes:
None to report.

2) Review of outstanding action items.
FOC: Timelines to work to need to be identified. Good to base these on UM code freezes. ACTION to think about when/what (GAx) to tie strategic model developments too.

FOC: Plans for the UKCA evaluation suit (1) porting to python (2) extending to other data sets (CCMVal etc) (3) Ext to compare between model runs (4) Super metrics (5) incorporate into Maverick (6) Include into other packages.

Remaining ACTION ATA to look for water vapour bug at 7.3.

FOC still working on fixed CH4. Wants to get a RC4 run working but having problems. May try and remove MODE as having SPARSE VAR problems.

ACTION ATA to pick up the working run from FOC and play with top boundary.

3) a) TTT PEG update
ACTION FOC: To implement the diagnostics from O3 sondes into HadGEM3 runs.
ACTION ATA: Look into implementing the sat operators from – TES.

3) b) NOy PEG update
NLA: NOy PEG advised to create a new method of advecting NOy – new routine to be written. ACTION continue, work in progress. Based on results will schedule another PEG in the future. Hopeful that the new method can be implemented by mid April. FOC said NLA may want to look at calc_tracer_mass routine.

3) c) ACITES updates
ACTION ATA, FOC, GAF and MD to talk at York to folk about the super metrics.

3) d) JWCRP update
FOC: JWCRP post has had interviews and offer has been made. FOC reiterated some of the aims of the post. Short-term aim to look at the solver with some clear long term aims to look at impacts of amongst other things parallelization speeds ups (making use of openMP).

FOC: Paul Fields has secured two software engineering posts for UKCA.
ALL agreed this is fantastic news!

4) AOB
GF: Update on O3 deposition. Edinburgh found an inconsistency in the Wesley scheme. Mainly a naming convention issue. GAF has prepared an update to this. ACTION GAF to check that this is in 8.x and if so to raise a bug fix ticket if needed for 9.1.

Minutes of the chemistry working group meeting 19/3/2014

2014-03-19T16:28:42Z

Alex: Created page with "Minutes of Skype held on 19/3/2014 – 15:00 GMT Present: NLA, ATA, FOC, GAF and MD Discussion on the role of this working group: This group, as with many of the working groups,…"

Minutes of Skype held on 19/3/2014 – 15:00 GMT
Present: NLA, ATA, FOC, GAF and MD

Discussion on the role of this working group: This group, as with many of the working groups, is operating in a responsive mode to make progress on model issues. We see that a major aim of this group for the future is to be able to help steer and provide input to make long-term strategic improvements. As there are an increasing number of working groups we are mindful that people don’t want to get sucked into spending all their time in meetings, but it’s important that there is a good dialogue between the different working groups.

Reserved business:

1) Modifications to previous minutes

2) Review of outstanding action items.
FOC: Timelines to work to need to be identified. Good to base these on UM code freezes. ACTION to think about when/what (GAx) to tie strategic model developments too.

FOC: Plans for the UKCA evaluation suit (1) porting to python (2) extending to other data sets (CCMVal etc) (3) Ext to compare between model runs (4) Super metrics (5) incorporate into Maverick (6) Include into other packages.

Remaining ACTION ATA to look for water vapour bug at 7.3.

FOC still working on fixed CH4. Wants to get a RC4 run working but having problems. May try and remove MODE as having SPARSE VAR problems.

ACTION ATA to pick up the working run from FOC and play with top boundary.

3) a) TTT PEG update
ACTION FOC: To implement the diagnostics from O3 sondes into HadGEM3 runs.
ACTION ATA: Look into implementing the sat operators from – TES.

3) b) NOy PEG update
NLA: NOy PEG advised to create a new method of advecting NOy – new routine to be written. ACTION continue, work in progress. Based on results will schedule another PEG in the future. Hopeful that the new method can be implemented by mid April. FOC said NLA may want to look at calc_tracer_mass routine.

3) c) ACITES updates
ACTION ATA, FOC, GAF and MD to talk at York to folk about the super metrics.

3) d) JWCRP update
FOC: JWCRP post has had interviews and offer has been made. FOC reiterated some of the aims of the post. Short-term aim to look at the solver with some clear long term aims to look at impacts of amongst other things parallelization speeds ups (making use of openMP).

FOC: Paul Fields has secured two software engineering posts for UKCA.
ALL agreed this is fantastic news!

4) AOB
GF: Update on O3 deposition. Edinburgh found an inconsistency in the Wesley scheme. Mainly a naming convention issue. GAF has prepared an update to this. ACTION GAF to check that this is in 8.x and if so to raise a bug fix ticket if needed for 9.1.

Chemistry working group

2014-03-19T16:15:39Z

Alex:

Minutes of the chemistry working group meeting 29/1/2014

2014-01-29T12:19:42Z

Alex:

Gas-Phase Chemistry Telecon

29/01/14

Agenda
1) Updating reaction rates (AA)

2) Evaluation of model output (NB found bug in OH Lawrence script) (AA)

3) Strategy for understanding UTLS O3 bias in troposphere (AA)

4) Model stability (FO’C)

5) Water vapour bug (FO’C)

6) Drift in model performance (FO’C)

7) Upper boundary condition (FO’C)

8) UMvn9.1 Code Freeze (FO’C)

9) Any other business

10) Details of next telecom

Present – NLA, PTG, ATA, MD, FO’C, GAF
Minutes:
Item (0)
ATA – Should we put documents on the twiki or on the UKCA wiki
NLA – Transparency means that UKCA wiki would be best
ATA – ACTION put minutes and documents on to the UKCA wiki
ALL – ACTION to think of suitable name.

Item (1)
ATA – Should we lodge the mechanism data?
FO’C – Its possible to lodge anciliary data to FCM
FO’C – There is scope to improve the way that the meta data is incorporated
FO’C – Review process is not simple.
MD – There is a guideline for the role of a strategic reviewer.
FO’C – The plots would be a useful tool for helping the reviewers. Give a first order impression of whether there going to be any changes.
ATA – should the tools, which are needed, to evaluate the chemistry be under FCM.
FO’C/NLA – Pros and cons of how to store the mechanism data and or tools
FO’C – No need to rush this and do a bad job. ACTION All to think about how best to make progress.

Item (2)
MD – Don’t want to overload the evaluation plots! No need to duplicate diagnostics
FO’C – Can add the data from ACCENT. ACTION to get the data
FO’C – Also need to produce a very succinct level of evaluation that ESM people can “connect” with.
ACTION All to think about extended and reduced model output.

Removed discussion of item 3 from agenda.
Item (4)
FO’C – NR solver appears to be unstable with tropisop AND glomap mode are on. CheST + glomap seems stable. Plan of action needed to (1) understand the causes (2) fix it!
NLA – Is this just a mode related issue? Can we try running without MODE?
FO’C – Run tropisop with aerosol chemistry set to 0 and systematically test the impact of adding DMS, Terpenes etc.
NLA – Have there been runs with offline oxidants.
NLA – What level is the code dying?
MD – High up (level 57).
GAF – Do we need to revaluate the sanity checks in the solver.
ATA – MJP has given ASAD code to increase the number of s/s species.
FO’C – CJ is looking in to this.
NLA – Is this related to the upper boundary conditions?
GAF – Are there issues with how the relaxation to the UBC is performed. Add a sponge layer?
FO’C – ACTION will try and isolate the causes of the instability.
ATA – ACTION will look at the rates.

Item (5)
FO’C – When water vapour is pulled in to the atmosphere from D1 it was not being converted properly in tropisop.
GAF – This would cause the chemical atmosphere to be too dry. Obviously this would have big impacts on OH.
ATA – ACTION look for this bug in 7.3 jobs.
FO’C – ACTION to look into the jobs again.

Item (6 - 9)
FO’C – RC3 for tropisop (stability aside) is drifting badly. A couple of fixes need to be made – CH4 boundary condition, upper boundary condition
GAF – There is a bug in the LNOx scheme
NLA – Declan Finney has sent this to us and we need to check. Our LNOx distribution looks OK so not sure we are effected by this.
ATA – The Ox production looks odd in this model version – too much production at high southern latitudes – is this a LNOx issue?
FO’C – ACTION to pick up where the model runs were left. Will turn of the GLOMAP MODE and aerosol chemistry bits. In particular the UBC for NOy looks very high.
FO’C – To send over jobs for UCam to look at on MONSooN.
ATA – ACTION to assess the impact of different UBC (following Zadies work). Talk to GAF about implementing the sponge.
FO’C – 9.0 released end of Feb. Climate configuration available mid March. Mid may deadline for code submission. 9.0 running under Rose – not an ideal set up. Items slated for inclusion – BVOC emissions (GAF) top priority; Bug fix branch (FO’C) – add the water vapour bug fix, coriolis parameter.
All agree that the timeline prevents getting changes to tropisop in in time.
FO’C – Timeline for ENDGAME still in flux. ACTION to keep us posted.
FO’C – Leeds to advertise the JWCRP post. Interviews will be mid March. ATA involvement depends on number of other interviewers.

Item (10)
ATA – ACTION Schedule next meeting for mid March.
GAF – Skype next time

Minutes of the chemistry working group meeting 29/1/2014

2014-01-29T12:19:13Z

Alex: Created page with "Gas-Phase Chemistry Telecon 29/01/14 Agenda 1) Updating reaction rates (AA) 2) Evaluation of model output (NB found bug in OH Lawrence script) (AA) 3) Strategy for understand…"

Gas-Phase Chemistry Telecon

29/01/14

Agenda
1) Updating reaction rates (AA)
2) Evaluation of model output (NB found bug in OH Lawrence script) (AA)
3) Strategy for understanding UTLS O3 bias in troposphere (AA)
4) Model stability (FO’C)
5) Water vapour bug (FO’C)
6) Drift in model performance (FO’C)
7) Upper boundary condition (FO’C)
8) UMvn9.1 Code Freeze (FO’C)
9) Any other business
10) Details of next telecom

Present – NLA, PTG, ATA, MD, FO’C, GAF
Minutes:
Item (0)
ATA – Should we put documents on the twiki or on the UKCA wiki
NLA – Transparency means that UKCA wiki would be best
ATA – ACTION put minutes and documents on to the UKCA wiki
ALL – ACTION to think of suitable name.

Item (1)
ATA – Should we lodge the mechanism data?
FO’C – Its possible to lodge anciliary data to FCM
FO’C – There is scope to improve the way that the meta data is incorporated
FO’C – Review process is not simple.
MD – There is a guideline for the role of a strategic reviewer.
FO’C – The plots would be a useful tool for helping the reviewers. Give a first order impression of whether there going to be any changes.
ATA – should the tools, which are needed, to evaluate the chemistry be under FCM.
FO’C/NLA – Pros and cons of how to store the mechanism data and or tools
FO’C – No need to rush this and do a bad job. ACTION All to think about how best to make progress.

Item (2)
MD – Don’t want to overload the evaluation plots! No need to duplicate diagnostics
FO’C – Can add the data from ACCENT. ACTION to get the data
FO’C – Also need to produce a very succinct level of evaluation that ESM people can “connect” with.
ACTION All to think about extended and reduced model output.

Removed discussion of item 3 from agenda.
Item (4)
FO’C – NR solver appears to be unstable with tropisop AND glomap mode are on. CheST + glomap seems stable. Plan of action needed to (1) understand the causes (2) fix it!
NLA – Is this just a mode related issue? Can we try running without MODE?
FO’C – Run tropisop with aerosol chemistry set to 0 and systematically test the impact of adding DMS, Terpenes etc.
NLA – Have there been runs with offline oxidants.
NLA – What level is the code dying?
MD – High up (level 57).
GAF – Do we need to revaluate the sanity checks in the solver.
ATA – MJP has given ASAD code to increase the number of s/s species.
FO’C – CJ is looking in to this.
NLA – Is this related to the upper boundary conditions?
GAF – Are there issues with how the relaxation to the UBC is performed. Add a sponge layer?
FO’C – ACTION will try and isolate the causes of the instability.
ATA – ACTION will look at the rates.

Item (5)
FO’C – When water vapour is pulled in to the atmosphere from D1 it was not being converted properly in tropisop.
GAF – This would cause the chemical atmosphere to be too dry. Obviously this would have big impacts on OH.
ATA – ACTION look for this bug in 7.3 jobs.
FO’C – ACTION to look into the jobs again.

Item (6 - 9)
FO’C – RC3 for tropisop (stability aside) is drifting badly. A couple of fixes need to be made – CH4 boundary condition, upper boundary condition
GAF – There is a bug in the LNOx scheme
NLA – Declan Finney has sent this to us and we need to check. Our LNOx distribution looks OK so not sure we are effected by this.
ATA – The Ox production looks odd in this model version – too much production at high southern latitudes – is this a LNOx issue?
FO’C – ACTION to pick up where the model runs were left. Will turn of the GLOMAP MODE and aerosol chemistry bits. In particular the UBC for NOy looks very high.
FO’C – To send over jobs for UCam to look at on MONSooN.
ATA – ACTION to assess the impact of different UBC (following Zadies work). Talk to GAF about implementing the sponge.
FO’C – 9.0 released end of Feb. Climate configuration available mid March. Mid may deadline for code submission. 9.0 running under Rose – not an ideal set up. Items slated for inclusion – BVOC emissions (GAF) top priority; Bug fix branch (FO’C) – add the water vapour bug fix, coriolis parameter.
All agree that the timeline prevents getting changes to tropisop in in time.
FO’C – Timeline for ENDGAME still in flux. ACTION to keep us posted.
FO’C – Leeds to advertise the JWCRP post. Interviews will be mid March. ATA involvement depends on number of other interviewers.

Item (10)
ATA – ACTION Schedule next meeting for mid March.
GAF – Skype next time

Chemistry working group

2014-01-29T12:15:59Z

Alex:

Chemistry working group

2014-01-29T12:15:32Z

Alex:

Chemistry working group

2014-01-29T12:14:12Z

Alex:

UKCA Chemistry working group members:

Met Office - Fiona O'Connor, Mohit Dalvi, Gerd Folberth

University of Cambridge - Alex Archibald, Luke Abraham, Paul Griffiths

Minutes

Chemistry working group

2014-01-29T12:13:53Z

Alex: Created page with "UKCA Chemistry working group members: Met Office - Fiona O'Connor, Mohit Dalvi, Gerd Folberth University of Cambridge - Alex Archibald, Luke Abraham, Paul Griffiths"

UKCA Chemistry working group members:

Met Office - Fiona O'Connor, Mohit Dalvi, Gerd Folberth
University of Cambridge - Alex Archibald, Luke Abraham, Paul Griffiths

Minutes of the code management group meeting 22/5/2013

2013-05-28T14:15:55Z

Alex: Created page with "Minutes of CMG meeting 22/05/2013: Present: Nick Savage (NS), Luke Abraham (LA), Alex Archibald (AA), Zak Kipling (ZK), Graham Mann (GM), Colin Johnson (CJ) and Mohit Dalvi (MD)…"

Minutes of CMG meeting 22/05/2013:

Present: Nick Savage (NS), Luke Abraham (LA), Alex Archibald (AA), Zak Kipling (ZK), Graham Mann (GM), Colin Johnson (CJ) and Mohit Dalvi (MD).

NS: Shared release, 8.2 job, Originally wanted CheST_GLOMAP, however will need to have two jobs initially: CheT(TropIsop)+GLOMAP+dynamic rain – should be step towards to the UKCA component of ESM (lacking ENDGAME); and CheST standalone job.

CJ to check with Fiona about status of CheST+GLOMAP job.

Group discussion: Evaluation to be done on 3 model simulations: StratTrop (NLA to run), TropIsop+GLOMAP (MD) and CheST+GLOMAP (in the near future).

'''Decision as to which job/s to take by end of week commencing 27th May'''

'''Analysis of chemical fields (AA) and aerosol (GM) by end of June 2013.'''

NS: Updated on closed release version 8.5. Highlights ongoing issue with space problems in Section 34. Roseification going well. 8.6 will be next open release (Nov), 9.0 will be a closed release (Feb) which will not contain any (many) science updates, but will be the first Rose only release.

NS: Changes made for Roseification: 8.5+ there will be a single integer produced by UMUI to select the chemistry scheme (getting rid of logicals), the number of reactions etc are now removed from hand edit control (similar for photolysis).

'''Complete set of notes to be disseminated to CMG (NS to do before 8.5 released).'''

Discussion of a new, STASH based, method for tracer assignment.

NS: Discussion of 8.6 code changes: '''IBVOC is going to be lodged''' (''Gerd Folberth to do''), '''new netCDF emissions ancils''' (''Carlos Ordonez to do''), '''improving scavenging fixes''' (''CJ to do''), '''RADAER part 2''' (''Nicolas/Ben to do – minor updates''), '''removing link to CLASSIC when GLOMAP on''' (''MD to do''), '''Rose updates part 2, tracers''' (''NS to do''), '''Sea salt fixes''' (''GM to do''), '''RCP scenarios to go in?''' (''NS to discuss with LA''), '''organic mediated nucleation code changes''' (''GM to do'').

AOB: No issues to report.

Code management group minutes

2013-05-28T14:10:24Z

Alex:

* [[Minutes_of_the_code_management_group_meeting_15/5/2012|Minutes of meeting held 15/5/2012 in Cambridge]]
* [[Minutes_of_the_code_management_group_meeting_19/7/2012|Minutes of teleconference meeting held 19/7/2012]]
* [http://www.ukca.ac.uk/wiki/images/b/b5/UKCA_CMG_06Sept2012_final_3.pdf Minutes of teleconference meeting held 06/9/2012] ([[File:UKCA_CMG_06Sept2012_final_3.pdf]])
* [[Code management group minutes 24Oct2012|Minutes of the meeting held on 24th Oct 2012]]
* [[Code management group minutes 4Dec2012|Minutes of the meeting held on 4 Dec 2012]]
* [[Notes_of_the_code_management_group_meeting_21/3/2013|Notes of the code management group meeting 21/3/2013]]
* [[Minutes_of_the_code_management_group_meeting_22/5/2013|Minutes of teleconference meeting held on 22/5/2013]]
[[Category:Minutes]]

Who's who in UKCA

2013-03-27T13:39:02Z

Alex:

This is a directory of people who are using and developing UKCA.

=== Met Office ===

==== Climate Science ====
* Colin Johnson. Manager of Mohit Dalvi and UKCA model developer.
* Mohit Dalvi. JWCRP funded UKCA support.
* Fiona O'Connor. Manager of Atmospheric Composition and Climate team.
* Gerd Folberth. Interests include BVOC and regional climate modelling with UKCA.
* Stephen Hardiman.
* Stephanie Woodward.
* Jim Haywood. Manager of Aerosols and Radiation group.
* Ben Johnson. Working on aerosols and radiation.
* Andy Jones. Working on aerosols and radiation.
* Steve Rumbold. Implementing nitrate aerosol scheme in UKCA.

==== Weather Science ====
* Nick Savage. UKCA code owner, chair of code management group. Using UKCA for air quality forecasting.
* Paul Agnew. Manager Air Quaility and composition team. Interests include AQ forecasting and AQ-Health interactions.
* Marie Tilbee. Using UKCA for air quality forecasting.
* Lucy Davis. Using UKCA for air quality forecasting and AQ-Health interactions. Working on AQMEII-2 model intercomparison
* Carlos Ordonez. Using UKCA for air quality forecasting. Developing new emission system for UKCA based on NetCDF inputs.

=== University of Cambridge ===

* Alexander Archibald. UKCA model developer. Lead CheST developer. Using UKCA to understand changes in composition from pre-industrial to present day.

Minutes of the code management group meeting 19/7/2012

2012-07-23T09:35:51Z

Alex:

UKCA code management meeting minutes.

Minutes of teleconference meeting held at 14:00 on July 19th 2012.

Those present:
'''Nick Savage''' (NS, Met.O); '''Alex Archibald''' (AA, U.Cam); '''Paul Telford''' (PT, U.Cam); '''Luke Abraham''' (LA, U.Cam); '''Graham Mann''' (GM, U.Leeds); '''Colin Johnson''' (CJ, Met.O); '''Mohit Dalvi''' (MD, Met.O); '''Sandip Dhomse''' (SD, U.Leeds); '''Zak Kipling''' (ZK, U.Oxford).

Items of discussion (those in italics refer to the meeting agenda sent by NS on July 18th):

[1] ''Appoint minute taker for this meeting. I would like to circulate this job around the groups if possible.''

Discussion of minute taking led to an agreement that this role should be shared around.
'''GM''' indicated willingness to take next set of meeting minutes.

[2] (0) ''Review action items from CMG held in Cambridge:'' http://www.ukca.ac.uk/wiki/index.php/Minutes_of_the_code_management_group_meeting_15/5/2012

NS: Can everyone please check the last set of minutes to make sure that they are happy with the designation of code expert for routines. (LA later noted that there was a typo/error in the minutes.

'''ACTION:''' NS to correct last meeting's minutes and all to check that they are happy with the designation of code experts for selected routines.

[2] (a)'' Code management guidelines. NS to make requested modifications and publish the new guidelines.''

'''ACTION:''' Done

[2] (b) ''To be proposed at next UKCA exec meeting that a living science plan is needed including input from management on future plans. Proposed and underway.''

'''ACTION:''' NS to advise on progress at next meeting.

[2] (c) ''Subsection experts - names and responsibilities. Names are agreed. I need to publish and then start classifying routines. Have got agreement from UM systems team that we can include a comment in each subroutine about which UKCA subsection it belongs to.''

'''ACTION:''' All to check that they are happy with the designation of code experts for selected routines (see minutes of last meeting).

[2] (d) ''NS to ask if we can have a Trac system on the Collaboration website. Basically the answer is no. We need to decide now if we want to use the PUMA UM trac site (can we get people like Olaf an account on it) or use the UKCA UM trac or some other platform. Philip Stier seemed keen on Redmine, but I have no experience with it [sic].''

There was a discussion on the need for a unified system to record ongoing projects/work plans (with tickets, milestones etc). The PUMA UKCA trac system (http://puma.nerc.ac.uk/trac/UKCA) was suggested as being a good place (this was used for the merged branch) to address item 2(d) on the agenda.

'''ACTION: All''' code developers to use the PUMA UKCA trac system to address these issues?

[2] (e) ''NS to set up templates for code review and ticket summary based on typical UM templates. Once the trac system is set up, NS will populate it with Met Office tickets which already exist inside the Met Office and invite NCAS scientists to add their tickets. Still on hold until we have a suitable platform.''

'''ACTION: NS''' to provide update at next meeting.

[2] (f) ''Configurations. NS to provide AQUM configuration at 8.2. Not done yet. NS with Fiona O'Connor to provide HadGEM3A plus StratTrop chemistry + ACHEM + GLOMAP-mode + Fastj-X using GA4. Not yet debugged, in progress.''

NS opened discussion on item 2(f), configurations of standard release/scientific jobs at 8.2. So far not a great deal of progress. Fiona O’Connor identified a few issues with the FAST-Jx routines lodged at 8.2 (CJ suggested that these are likely bugs that crept in during optimization of the code).
CJ noted that there are some “issues” with chemically inert tracers/aerosol precursors between 7.3 and 8.2. In particular differences in the vertical profile of several species (in experiments that used identical lower boundary conditions) was undesirably high. LA suggested to switch of tracer convection to see if this was the cause of the differences. GM suggested that the 8.2 MODE setup run at 7.3 resulted in good agreement in results. NS suggested that someone could look at using the model physics from 7.3 in an 8.2 job.
LA noted that he has started running an atmosphere only job at 8.2.
CJ noted that the offline MODE code was almost there (needed to introduce diurnal oxidants).

'''ACTION: Met O.''' need more work on providing the global model configurations.

[2] (g) ''We need both the jobs and input data to be available and a scientific validation. LA to discuss with Fiona. See later agenda item on scientific validation [sic].''

[2] (h) ''NS to write minutes and upload to web. ''

'''ACTION: Done.'''

[2] (i) ''Date of next meeting. NS to set up Doodle poll to co-ordinate. ''

'''ACTION: Done.'''

[3] ''Items from July Exec meeting.''

[3] (a) ''How to validate supported scientific configurations.''

AA suggested that the phrase model validation is not suitable for the first round of comparison of model data to old results and observations. Suggestion to call this processes model evaluation agreeded by all.
MD discussed progress on the UKCA model evaluation package. Oxford (Anu Dudhia) had sent data to MD. GM said that he can provide aerosol data.

'''ACTION: GM''' to provide MD with data for aerosol evaluation.
SD said that he can provide a range of satellite data based on the CCMVal type analysis.

'''ACTION: SD''' to send data to MD for stratospheric composition evaluation.

'''ACTION: All''' to agree on diagnostics, data sets, etc by the end of August. MD to provide evaluation tool by end of September.

There followed a discussion on how to define when an evaluated model is suitable for release? A suggestion was raised that an expert judgement system could be used defining a series of limits for acceptability of a set of diagnostics.
AA suggested that external moderation would be needed in the long run.

LA raised the issue of who assess which processes?

Aerosols to be assessed by Leeds and Oxford (GM to lead).

Strat. chem to be assessed by Cambridge and Leeds (LA to lead).

Trop. chem to be assessed by Cambridge and Met Office (AA to lead, NS to lead all work on limited area modelling i.e. AQ).

Meteorology (including strat. dynamics i.e. age of air) to tbe led by Met O. and Cambridge (who is responsible??).

'''ACTION: Everyone''' to go away, think about their prefered metrics for evaluating their prefered process, and think about what would be acceptable.

NS added that the approach to creating branches for use with supported scientific configurations will be based on the approach used for operational NWP jobs. All branches needed to run a specific configuration (bug fixes and new code) will be merged to form a specific branch for that supported configuration.

'''ACTION: All''' to think about/start adopting the above method.

'''ACTION: NS, CJ''' and '''LA''' to make sure that release configurations are ready by mid-November so that new PhD students can make best use of the code improvements.

[3] (b) ''How to improve communications. Options include email list, Redmine, Trac, Wiki - combinations are possible.''

Discussion of item 3(b) led to the idea of using the UKCA JISC email alert system to improve communication of bug alerts/updates.

'''ACTION: LA''' to make sure that everyone that is a known user is on the JISC user list and to for all to start using this email list to communicate UKCA code announcements.

[4] ''Agree strategy for use of 150 tracers and path to increasing numbers. See recent summary I sent around [sic].''

NS led discussion on moving away from using the STASH master file as a placeholder for species (discussion of item 4 highlighted that the current method would cause significant problems when transferring to IRIS and so a suitable solution will have to be found).

'''ACTION: NS''' to remove “dead” tracers.

LA and NS agreed that the StratCFC branch is a good candidate to go into 8.3.

'''ACTION: NS/LA''' to lodge StratCFC.

LA asked can we please sort out field codes for tracers.

'''ACTION: NS''' to talk to UMUI team about this.

[5] ''Date of next meeting. Early September?.''

'''ACTION: NS''' set up doodle poll. http://www.doodle.com/g9iuzhma8b6e7x5k

[6] ''AOB.''

No other items discussed.

'''ACTION: AA''' to upload minutes on the UKCA website. Done

Minutes of the code management group meeting 19/7/2012

2012-07-23T09:32:11Z

Alex:

UKCA code management meeting minutes.

Minutes of teleconference meeting held at 14:00 on July 19th 2012.

Those present:
Nick Savage (NS, Met.O); Alex Archibald (AA, U.Cam); Paul Telford (PT, U.Cam); Luke Abraham (LA, U.Cam); Graham Mann (GM, U.Leeds); Colin Johnson (CJ, Met.O); Mohit Dalvi (MD, Met.O); Sandip Dhomse (SD, U.Leeds); Zak Kipling (ZK, U.Oxford).

Items of discussion (those in italics refer to the meeting agenda sent by NS on July 18th):

[1] ''Appoint minute taker for this meeting. I would like to circulate this job around the groups if possible.''

Discussion of minute taking led to an agreement that this role should be shared around.
'''GM''' indicated willingness to take next set of meeting minutes.

[2] (0) ''Review action items from CMG held in Cambridge:'' http://www.ukca.ac.uk/wiki/index.php/Minutes_of_the_code_management_group_meeting_15/5/2012

NS: Can everyone please check the last set of minutes to make sure that they are happy with the designation of code expert for routines. (LA later noted that there was a typo/error in the minutes.

'''ACTION:''' NS to correct last meeting's minutes and all to check that they are happy with the designation of code experts for selected routines.

[2] (a)'' Code management guidelines. NS to make requested modifications and publish the new guidelines.''

'''ACTION:''' Done

[2] (b) ''To be proposed at next UKCA exec meeting that a living science plan is needed including input from management on future plans. Proposed and underway.''

'''ACTION:''' NS to advise on progress at next meeting.

[2] (c) ''Subsection experts - names and responsibilities. Names are agreed. I need to publish and then start classifying routines. Have got agreement from UM systems team that we can include a comment in each subroutine about which UKCA subsection it belongs to.''

'''ACTION:''' All to check that they are happy with the designation of code experts for selected routines (see minutes of last meeting).

[2] (d) ''NS to ask if we can have a Trac system on the Collaboration website. Basically the answer is no. We need to decide now if we want to use the PUMA UM trac site (can we get people like Olaf an account on it) or use the UKCA UM trac or some other platform. Philip Stier seemed keen on Redmine, but I have no experience with it [sic].''

There was a discussion on the need for a unified system to record ongoing projects/work plans (with tickets, milestones etc). The PUMA UKCA trac system (http://puma.nerc.ac.uk/trac/UKCA) was suggested as being a good place (this was used for the merged branch) to address item 2(d) on the agenda.

'''ACTION: All''' code developers to use the PUMA UKCA trac system to address these issues?

[2] (e) ''NS to set up templates for code review and ticket summary based on typical UM templates. Once the trac system is set up, NS will populate it with Met Office tickets which already exist inside the Met Office and invite NCAS scientists to add their tickets. Still on hold until we have a suitable platform.''

'''ACTION: NS''' to provide update at next meeting.

[2] (f) ''Configurations. NS to provide AQUM configuration at 8.2. Not done yet. NS with Fiona O'Connor to provide HadGEM3A plus StratTrop chemistry + ACHEM + GLOMAP-mode + Fastj-X using GA4. Not yet debugged, in progress.''

NS opened discussion on item 2(f), configurations of standard release/scientific jobs at 8.2. So far not a great deal of progress. Fiona O’Connor identified a few issues with the FAST-Jx routines lodged at 8.2 (CJ suggested that these are likely bugs that crept in during optimization of the code).
CJ noted that there are some “issues” with chemically inert tracers/aerosol precursors between 7.3 and 8.2. In particular differences in the vertical profile of several species (in experiments that used identical lower boundary conditions) was undesirably high. LA suggested to switch of tracer convection to see if this was the cause of the differences. GM suggested that the 8.2 MODE setup run at 7.3 resulted in good agreement in results. NS suggested that someone could look at using the model physics from 7.3 in an 8.2 job.
LA noted that he has started running an atmosphere only job at 8.2.
CJ noted that the offline MODE code was almost there (needed to introduce diurnal oxidants).

'''ACTION: Met O.''' need more work on providing the global model configurations.

[2] (g) ''We need both the jobs and input data to be available and a scientific validation. LA to discuss with Fiona. See later agenda item on scientific validation [sic].''

[2] (h) ''NS to write minutes and upload to web. ''

'''ACTION: Done.'''

[2] (i) ''Date of next meeting. NS to set up Doodle poll to co-ordinate. ''

'''ACTION: Done.'''

[3] ''Items from July Exec meeting.''

[3] (a) ''How to validate supported scientific configurations.''

AA suggested that the phrase model validation is not suitable for the first round of comparison of model data to old results and observations. Suggestion to call this processes model evaluation agreeded by all.
MD discussed progress on the UKCA model evaluation package. Oxford (Anu Dudhia) had sent data to MD. GM said that he can provide aerosol data.

'''ACTION: GM''' to provide MD with data for aerosol evaluation.
SD said that he can provide a range of satellite data based on the CCMVal type analysis.

'''ACTION: SD''' to send data to MD for stratospheric composition evaluation.

'''ACTION: All''' to agree on diagnostics, data sets, etc by the end of August. MD to provide evaluation tool by end of September.
There followed a discussion on how to define when an evaluated model is suitable for release? A suggestion was raised that an expert judgement system could be used defining a series of limits for acceptability of a set of diagnostics.
AA suggested that external moderation would be needed in the long run.
LA raised the issue of who assess which processes?
Aerosols to be assessed by Leeds and Oxford (GM to lead).
Strat. chem to be assessed by Cambridge and Leeds (LA to lead).
Trop. chem to be assessed by Cambridge and Met Office (AA to lead, NS to lead all work on limited area modelling i.e. AQ).
Meteorology (including strat. dynamics i.e. age of air) to tbe led by Met O. and Cambridge (who is responsible??).
ACTION: Everyone to go away, think about their prefered metrics for evaluating their prefered process, and think about what would be acceptable.
NS added that the approach to creating branches for use with supported scientific configurations will be based on the approach used for operational NWP jobs. All branches needed to run a specific configuration (bug fixes and new code) will be merged to form a specific branch for that supported configuration.
ACTION: All to think about/start adopting the above method.
ACTION: NS, CJ and LA to make sure that release configurations are ready by mid-November so that new PhD students can make best use of the code improvements.

(b) How to improve communications. Options include email list, Redmine, Trac, Wiki - combinations are possible.

Discussion of item 3(b) led to the idea of using the UKCA JISC email alert system to improve communication of bug alerts/updates.
ACTION: LA to make sure that everyone that is a known user is on the JISC user list and to for all to start using this email list to communicate UKCA code announcements.

Agree strategy for use of 150 tracers and path to increasing numbers. See recent summary I sent around.
NS led discussion on moving away from using the STASH master file as a placeholder for species (discussion of item 4 highlighted that the current method would cause significant problems when transferring to IRIS and so a suitable solution will have to be found).
ACTION: NS to remove “dead” tracers.
LA and NS agreed that the StratCFC branch is a good candidate to go into 8.3.
ACTION: NS/LA to lodge StratCFC.
LA asked can we please sort out field codes for tracers.
ACTION: NS to talk to UMUI team about this.
Date of next meeting. Early September?.
ACTION: NS set up doodle poll. http://www.doodle.com/g9iuzhma8b6e7x5k
AOB.
No other items discussed.
ACTION: AA to upload minutes on the UKCA website. Done

Minutes of the code management group meeting 19/7/2012

2012-07-23T09:25:42Z

Alex: Created page with "UKCA code management meeting minutes. Minutes of teleconference meeting held at 14:00 on July 19th 2012. Those present: Nick Savage (NS, Met.O); Alex Archibald (AA, U.Cam); Pa…"

UKCA code management meeting minutes.

Minutes of teleconference meeting held at 14:00 on July 19th 2012.

Those present:
Nick Savage (NS, Met.O); Alex Archibald (AA, U.Cam); Paul Telford (PT, U.Cam); Luke Abraham (LA, U.Cam); Graham Mann (GM, U.Leeds); Colin Johnson (CJ, Met.O); Mohit Dalvi (MD, Met.O); Sandip Dhomse (SD, U.Leeds); Zak Kipling (ZK, U.Oxford).

Items of discussion (those in italics refer to the meeting agenda sent by NS on July 18th):

[1] ''Appoint minute taker for this meeting. I would like to circulate this job around the groups if possible.
Discussion of minute taking led to an agreement that this role should be shared around.''
'''GM''' indicated willingness to take next set of meeting minutes.

[2] (0) ''Review action items from CMG held in Cambridge:'' http://www.ukca.ac.uk/wiki/index.php/Minutes_of_the_code_management_group_meeting_15/5/2012
NS: Can everyone please check the last set of minutes to make sure that they are happy with the designation of code expert for routines. (LA later noted that there was a typo/error in the minutes.
'''ACTION:''' NS to correct last meeting's minutes and all to check that they are happy with the designation of code experts for selected routines.

[2] (a)'' Code management guidelines. NS to make requested modifications and publish the new guidelines.''
'''ACTION:''' Done

(b) To be proposed at next UKCA exec meeting that a living science plan is needed including input from management on future plans. Proposed and underway.

ACTION: NS to advise on progress at next meeting.

(c) Subsection experts - names and responsibilities. Names are agreed. I need to publish and then start classifying routines. Have got agreement from UM systems team that we can include a comment in each subroutine about which UKCA subsection it belongs to.
ACTION: All to check that they are happy with the designation of code experts for selected routines (see minutes of last meeting).

(d) NS to ask if we can have a Trac system on the Collaboration website. Basically the answer is no. We need to decide now if we want to use the PUMA UM trac site (can we get people like Olaf an account on it) or use the UKCA UM trac or some other platform. Philip Stier seemed keen on Redmine, but I have no experience with it.

There was a discussion on the need for a unified system to record ongoing projects/work plans (with tickets, milestones etc). The PUMA UKCA trac system (http://puma.nerc.ac.uk/trac/UKCA) was suggested as being a good place (this was used for the merged branch) to address item 2(d) on the agenda.
ACTION: All code developers to use the PUMA UKCA trac system to address these issues?

(e) NS to set up templates for code review and ticket summary based on typical UM templates. Once the trac system is set up, NS will populate it with Met Office tickets which already exist inside the Met Office and invite NCAS scientists to add their tickets. Still on hold until we have a suitable platform.
ACTION: NS to provide update at next meeting.

(f) Configurations. NS to provide AQUM configuration at 8.2. Not done yet. NS with Fiona O'Connor to provide HadGEM3A plus StratTrop chemistry + ACHEM + GLOMAP-mode + Fastj-X using GA4. Not yet debugged, in progress.
NS opened discussion on item 2(f), configurations of standard release/scientific jobs at 8.2. So far not a great deal of progress. Fiona O’Connor identified a few issues with the FAST-Jx routines lodged at 8.2 (CJ suggested that these are likely bugs that crept in during optimization of the code).
CJ noted that there are some “issues” with chemically inert tracers/aerosol precursors between 7.3 and 8.2. In particular differences in the vertical profile of several species (in experiments that used identical lower boundary conditions) was undesirably high. LA suggested to switch of tracer convection to see if this was the cause of the differences. GM suggested that the 8.2 MODE setup run at 7.3 resulted in good agreement in results. NS suggested that someone could look at using the model physics from 7.3 in an 8.2 job.
LA noted that he has started running an atmosphere only job at 8.2.
CJ noted that the offline MODE code was almost there (needed to introduce diurnal oxidants).
ACTION: Met O. need more work on providing the global model configurations.

(g) We need both the jobs and input data to be available and a scientific validation. LA to discuss with Fiona. See later agenda item on scientific validation.

(h) NS to write minutes and upload to web.

ACTION: Done.

(i) Date of next meeting. NS to set up Doodle poll to co-ordinate.

ACTION: Done.

Items from July Exec meeting

(a) How to validate supported scientific configurations.
AA suggested that the phrase model validation is not suitable for the first round of comparison of model data to old results and observations. Suggestion to call this processes model evaluation agreeded by all.
MD discussed progress on the UKCA model evaluation package. Oxford (Anu Dudhia) had sent data to MD. GM said that he can provide aerosol data.
ACTION: GM to provide MD with data for aerosol evaluation.
SD said that he can provide a range of satellite data based on the CCMVal type analysis.
ACTION: SD to send data to MD for stratospheric composition evaluation.
ACTION: All to agree on diagnostics, data sets, etc by the end of August. MD to provide evaluation tool by end of September.
There followed a discussion on how to define when an evaluated model is suitable for release? A suggestion was raised that an expert judgement system could be used defining a series of limits for acceptability of a set of diagnostics.
AA suggested that external moderation would be needed in the long run.
LA raised the issue of who assess which processes?
Aerosols to be assessed by Leeds and Oxford (GM to lead).
Strat. chem to be assessed by Cambridge and Leeds (LA to lead).
Trop. chem to be assessed by Cambridge and Met Office (AA to lead, NS to lead all work on limited area modelling i.e. AQ).
Meteorology (including strat. dynamics i.e. age of air) to tbe led by Met O. and Cambridge (who is responsible??).
ACTION: Everyone to go away, think about their prefered metrics for evaluating their prefered process, and think about what would be acceptable.
NS added that the approach to creating branches for use with supported scientific configurations will be based on the approach used for operational NWP jobs. All branches needed to run a specific configuration (bug fixes and new code) will be merged to form a specific branch for that supported configuration.
ACTION: All to think about/start adopting the above method.
ACTION: NS, CJ and LA to make sure that release configurations are ready by mid-November so that new PhD students can make best use of the code improvements.

(b) How to improve communications. Options include email list, Redmine, Trac, Wiki - combinations are possible.

Discussion of item 3(b) led to the idea of using the UKCA JISC email alert system to improve communication of bug alerts/updates.
ACTION: LA to make sure that everyone that is a known user is on the JISC user list and to for all to start using this email list to communicate UKCA code announcements.

Agree strategy for use of 150 tracers and path to increasing numbers. See recent summary I sent around.
NS led discussion on moving away from using the STASH master file as a placeholder for species (discussion of item 4 highlighted that the current method would cause significant problems when transferring to IRIS and so a suitable solution will have to be found).
ACTION: NS to remove “dead” tracers.
LA and NS agreed that the StratCFC branch is a good candidate to go into 8.3.
ACTION: NS/LA to lodge StratCFC.
LA asked can we please sort out field codes for tracers.
ACTION: NS to talk to UMUI team about this.
Date of next meeting. Early September?.
ACTION: NS set up doodle poll. http://www.doodle.com/g9iuzhma8b6e7x5k
AOB.
No other items discussed.
ACTION: AA to upload minutes on the UKCA website. Done

Code management group minutes

2012-07-23T09:22:23Z

Alex:

Chemistry of the Stratosphere and Troposphere

2012-07-18T09:21:31Z

Alex:

The TropIsop and Stratospheric chemistry schemes have been merged to produce a UKCA configuration suitable for simulating the chemistry of the stratosphere and troposphere (CheST).

The CheST scheme considers emissions of NOx, CO, C2H6, C3H8, C5H8, HCHO, CH3CHO and CH3COCH3 and surface boundary conditions of CH4, CFC's and N2O.

Chemistry of the Stratosphere and Troposphere

2012-06-26T11:16:54Z

Alex: Created page with "The merged tropospheric and stratospheric chemistry configuration is under development and is close to being ready for release."

The merged tropospheric and stratospheric chemistry configuration is under development and is close to being ready for release.

Minutes of the code management group meeting 15/5/2012

2012-05-17T09:24:46Z

Alex:

== DRAFT ONLY!!! ==

'''Location''': Cambridge

'''Present''' (for all or part of the meeting): Nick Savage (Met Office), Mohit Dalvi (Met Office), Colin Johnson (Met Office), Luke Abraham (Cambridge University), Alex Archibald (Cambridge University), Graham Mann (Leeds University)

# Code management. The code management guidelines were discussed. The following amendments to the guidelines were agreed.
##The purpose section should be amended to make it friendlier and more focussed on UKCA as a community model implying common working practices. Following the guidelines is required for code to be lodged in the main UKCA code base. All developers are encouraged to follow this advice.
##It was agreed that the previous of jobs was a responsibility of the whole CMG and not just the Met Office.
##There was a long discussion about what we mean by "standard jobs" and it became clear that NS and the NCAS scientists were using the term to mean something different! Two type of jobs are really needed and we have to help provide these. First of all well validated, supported, scientific configurations which can be used as 'control' models to test new science. These will be called ''Supported science configurations''. Secondly, jobs used to test the impact of changes being made. These jobs would typically be run for very short integrations to demonstrate that the change has not altered configurations it should not be changing (i.e. if you turn this new change off are the results identical to a job without the branch). These may include some jobs with UKCA off and will be called ''Standard testing jobs''. They are also the basis for any automated testing through the UTF. The details of the jobs to be provided was discussed further later in the meeting.
## Tickets. It was decided to attempt to have the ticketing system for UKCA changes on the Collaboration Wiki not on PUMA.
#:'''NS to make requested modifications and publish the new guidelines'''
#:'''To be proposed at next UKCA exec meeting that a living science plan is needed including input from management on future plans'''
# code ownership.
## Formal code owner at Met Office. It was agreed to propose to the next UKCA executive meeting that Nick Savage takes over formal responsibility as code owner. He is already representing UKCA at UM Project Board Meetings.
## Subsection experts - names and responsibilities. As the code owner cannot be an expert in every part of the code, it was agreed that we would nominate experts for each subsection of the code. These people would act as first points of contact for people considering modifying the code and the code owner will check if they are happy with the code as part of the lodging process. Note that those names below in italics were not at the meeting and so are currently only suggested as subsection experts, pending discussion. There will be an expert for each of the chemistry schemes.
##* GLOMAP-mode - Graham Mann
##* Core code (ukca_chemistry_ctl , ukca_d1_defs etc) - Colin Johnson
##* RADAER and greenhouse gas data flow to radiation code - ''Nicolas Bellouin''
##* Wet deposition - ''Zak Kipling''
##* Dry deposition - ''Gerd Folberth''
##* Lower BC and emissions - Mohit Dalvi
##* Photolysis - ''Paul Telford''
##* ASAD - Luke Abraham
##* RAQ chemistry - Nick Savage
##* ExtTC - ''Gerd Folberth''
##* Top boundary conditions - Alex Archibald
##* TropIsop (aka CheT) - Alex Archibald
##* Standard tropospheric chemistry (includes transform_halogen) - Alex Archibald
##* Chemistry: Stratospheric-Tropospheric (CheST) - Alex Archibald
##* Stratospheric chemistry - Luke Abraham
##* Heterogeneous chemistry - Colin Johnson
##* Aerosol chemistry - Colin Johnson
#:'''NS to check that all people above are willing to be subsection experts and then publish a list so users know who to contact'''
# Plans for the next year
## vn8.3 - minor technical changes only. It has been agreed by the UM project board that this should be a closed release. No science changes will be allowed. At the moment 4 UKCA tickets are open: putting the namelist for UKCA into its own module; making UKCA ENDGAME compatible; splitting up the stratospheric photolysis routines into separate files and removing the final UKCA specific include files (replacing them with modules). Code review submission closing date 14/09/12.
## Met Office science changes. The two main Met Office priorities for next year are HadGEM3-ES and moving AQUM to using GLOMAP-mode aerosols. Ticket supporting HadGEM3-ES include: update to lightning emissions, RADAER part 2, nitrate aerosols for GLOMAP-mode, Modal dust. More minor changes which did not make 8.2 but are needed include: the fix to transform halogen, improving the process split for emissions of aerosols, plumbing the ACTIVATE results into the cloud schemes and any changes which come from the work Colin and Graham are doing on aerosol wet deposition. Clearly the addition of the two extra aerosol types will be very challenging. For making AQUM work with GLOMAP-mode the two main task is adding sulphur chemistry to RAQ. There is also a ticket open to add interactive biogenic emissions and to add the ExtTC chemsitry scheme. Colin wishes to extend the work on wet deposition of aerosols to also include soluble gases. Finally a planned rewrite of the emissions code is underway, which will make the code more flexible and also use NetCDF files for input.
## NCAS science changes. Although many of the above changes came from NCAS initially, as they have already been adopted by the Met Office, no external review prior to adoption will be needed. The code will still have to be reviewed by the usual Met Office code reviews. Pieces of code which will undergo a preliminary review prior to adoption by MO scientists are described in this section. One of the first pieces of code which will be reviewed is likely to be the wet deposition updates by Zak Kipling. Other possible updates include a version of the unlumped CFC scheme (LA), the flight-track code (Paul Telford with input from NS especially on rotated grids), stratospheric aerosol code updates (GM), rate update for StratTrop/CHEST chemistry (AA to make 8.2 branch and validate). We also need to discuss further issues to do with rate coefficients, such as the policy on IUPAC vs JPL. AA to co-ordindate discussion of wider issues on rates.
# Setting up new UKCA trac system. The first question on this was where do we host it. It was agreed that we would see if it could reside on the Met Office Collaboration wiki like the GA projects. If this does not happen we will use the trac system on PUMA. The tickets on this site will be opened in additon to any ticket on the UM trac servers (Met Office and PUMA). Unfortunately this does mean there will be two tickets for each code, but this has the advantage than anyone will be able to see the tickets. To get a community of developers for a community model, we need to be able to see what other developers are doing and what progress they are making. We also need to have a forum for recording the code reviews. '''NS to ask if we can have a Trac system on the Collaboration website'''.
## templates for code review and ticket summary. '''NS to set up templates for code review and ticket summary based on typical UM templates'''.
## tickets. '''Once the trac system is set up, NS will populate it with Met Office tickets which already exist inside the Met Office and invite NCAS scientists to add their tickets'''.
# Configuration management. Colin presented a list of 7 configurations we will need to try support in the medium term. These are:
##The AQ model, with RAQ chemistry at 12 km. A currently operational model.
##Global forecast models with GLOMAP-mode aerosol in various configurations. Not yet existing
##HadGEM3-ES. A version with STratTrop+aerosol chemistry+GLOMAP-mode+ FastJ-X. Under development at the Met Office.
##HadGEM3+S chemistry+offline oxidants+GLOMAP-mode. Not yet in existence.
##HadGEM3-AO+Stratospheric chemistry.
##HadGEM3-AO+ ExtTc. ExtTC only exists on branches at present.
##Regional Climate model + ExtTC. Again there is currently no RCM at 8.2 (only at 7.7)
#:Given the immature state of some of the jobs above it was agreed that for 8.2 we would initially only provide the following two jobs:
## HadGEM3A plus StratTrop chemistry+ACHEM+GLOMAP-mode+Fastj-X using GA4. '''NS with Fiona O'Connor''' to provide. Also provide the base climate job from which this job is built to allow easier diffing.
## AQUM. '''NS to provide'''
#: We need both the jobs and input data to be available and a scientific validation. '''LA to discuss with Fiona'''.
# Code testing prior to adoption by Met Office
## Configurations to undergo routine testing. The new code management guidelines mean testing of code must occur before the code is accepted by the Met Office for lodging. We need to clarify what configurations we are to test to see if the code has unexpected impacts (in addition to scientific evaluation of the new code, it should ideally not change results if the change is turned off) . It was agreed that this would involve as a minimum the two 'UKCA On' configurations above plus two 'UKCA off': a small version of the UKV model and an N48 test job, plus a Linux compile test.
## UTF on postproc and alternatives. At present the UTF is not available on the Monsoon postproc as it needs an upgrade to RHEL6 first. If this is not available in time for testing of external code, we will need to use more basic methods to test the code.
## External reviewers for NCAS changes. To review the code, we at present need Met Office scientists to do it. Possible reviewers for key changes this year (italics those who have not yet agreed):
###Convective washout - CJ
###Flight-track - NS
### Strat aerosol code update - NS
### Aerosol primary emissions changes - MD
### Rate update - ''Fiona O'Connor''
### Sea spray module - ''Andy Jones''
# Location for minutes of these meetings and access policy. Agree to put then on the UKCA website and make freely available. '''NS to write minutes and upload to web'''.
# Date of next meeting. A teleconference will be held in July. Zak Kipling from Oxford to be invited to participate plus any other suitable people from Leeds and Cambridge (Sandip). '''NS to set up Doodle poll to co-ordinate'''.

Also discussed more informally were:
# Optimisation. '''LA to co-ordinate any work he does with Met Office optimisation team's work'''.
# Validation suite. Need more data and validation code to be submitted to Mohit for inclusion in suite. '''GM to send aerosols validation IDL code and data'''. '''LA to provide Cambridge data/code'''. '''NS to facilitate (i.e. nag)'''.
# IRIS. LA expressed an interest in using IRIS but some potential issues came up. '''LA, MD and NS to investigate further'''.

Sec34 emissions

2010-09-23T10:36:27Z

Alex:

The emission data required by UKCA are currently (vn7.7) handled through the UM ancillary system as 'User defined' items. This puts a limitation on the number of emission species. With the addition of chemistry schemes and enhancement UKCA of itself, there is likely to be an increase in the number as well as complexity (vertical/time profiles, source-wise grouping, ..) of the emissions. Shifting these to Section 34 will give the users more flexibility in handling the emissions through UKCA. This process was actually initiated a while ago and a few of the emission items were 'reserved' in Section 34 as well as the UM ancillary system. This list however, now needs to be revisited in view of the recent and planned developments.

The Table below lists the 'reserved' emission species under Section 34 and their requirement for the existing and near-future chemistry schemes.
{| border="1"
!Item No. || Emission Species || Std. Trop. Chem || Trop Chem + Isoprene || Aerosol Chem || Extended Trop. Chem || Regional AQ Chem || Strat. Chem || CheST
|-
|180 ||NOX SURFACE EMISSION (AS NO2) || Y || Y || Y || Y || Y || Y || Y
|-
|181 ||CH4 SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|182 || CO SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|183 ||HCHO SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|184 ||C2H6 SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|185 ||C3H8 SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|186 ||CH3COCH3 SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|187 ||CH3CHO SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|188 ||C5H8 (Isoprene) SURFACE EMISSION || || Y || || Y || Y || || Y
|-
|189 ||H2 SURFACE EMISSION || || || || || Y || ||
|-
|190 ||NOX AIRCRAFT EMISSION AS NO2 || Y || Y || Y || Y || Y || Y || Y
|-
|191 ||N2O SURFACE EMISSION || || || || || || ||
|-
|192 ||CFCL3 (CFC-11) SURFACE EMISSION || || || || || || ||
|-
|193 ||CF2CL2 (CFC-12) SURFACE EMISSION || || || || || || ||
|-
|194 ||CFC-113 SURFACE EMISSION || || || || || || ||
|-
|195 ||CH3BR SURFACE EMISSION || || || || || || ||
|-
|196 ||CH3CL SURFACE EMISSION || || || || || || ||
|-
|197 ||CF2CLBR (H-1211) SURFACE EMISSION || || || || || || ||
|-
|198 ||CCL4 SURFACE EMISSION || || || || || || ||
|-
|199 ||CHF2CL (HCFC-22) SURFACE EMISSION || || || || || || ||
|-
|200 ||CH3CCL3 SURFACE EMISSION || || || || || || ||
|-
|201 ||CF3BR (H-1301) SURFACE EMISSION || || || || || || ||
|-
|202 ||SO2 SURFACE EMISSION || || || Y || || || ||
|-
|203 ||DMS SURFACE EMISSION || || || Y || || || ||
|-
|204 ||H2S SURFACE EMISSION || || || || || || ||
|-
|205 ||CS2 SURFACE EMISSION || || || || || || ||
|-
|206 ||COS SURFACE EMISSION || || || || || || ||
|-
|207 ||NH3 SURFACE EMISSION || || || Y || || || ||
|-
|208 ||RADON-222 SURFACE EMISSION || || || || || || ||
|-
|209 ||SO2 HIGH LEVEL EMISSION || || || Y || || || ||
|-
|210 ||SO2 VOLCANIC EMISSION || || || Y || || || ||
|-
|211 ||SO2 BIOMASS EMISSION || || || Y* || || || ||
|-
|212 ||C4H10 SURFACE EMISSION || || || || || Y || ||
|-
|213 ||C2H4 SURFACE EMISSION || || || || || Y || ||
|-
|214 ||C3H6 SURFACE EMISSION || || || || || Y || ||
|-
|215 ||TOLUENE SURFACE EMISSION || || || || || Y || ||
|-
|216 ||O-XYLENE SURFACE EMISSION || || || || || Y || ||
|-
|217 ||CH3OH SURFACE EMISSION || || || || || Y || ||
|-
|218 ||MONOTERPENE SURFACE EMISSION || || || Y || || || ||
|-
|219 ||SESQUITERPENE SURFACE EMISSION || || || || || || ||
|-
|220 ||BLACK CARBON EMISSION FOSSIL FUEL || || || Y || || || ||
|-
|221 ||ORGANIC CARBON EMISSION FOSSIL FUEL || || || Y || || || ||
|-
|222 ||BLACK CARBON EMISSION BIOFUEL || || || Y || || || ||
|-
|223 ||ORGANIC CARBON EMISSION BIOFUEL || || || Y || || || ||
|-
|224 ||BLACK CARBON EMISSION BIOMASS || || || Y || || || ||
|-
|225 ||ORGANIC CARBON EMISSION BIOMASS || || || Y || || || ||
|-
|226 ||PRESCRIBED DUST NUMBER EMISS || || || || || || ||
|-
|227 ||PRESCRIBED DUST EMISS MEAN RADIUS || || || || || || ||
|-
|228 ||PRESCRIBED SEA-SALT NUMBER EMISS || || || || || || ||
|-
|229 ||PRESCRIBED SEA-SALT EMIS MEAN RADIUS || || || || || || ||
|-
|Addl ||APIN SURFACE EMISSIONS || || || || Y || || ||
|-
|Addl ||NVOC SURFACE EMISSIONS || || || || Y || || ||
|}

'''Y''' : Currently used in existing Scheme.
'''Y*''': Proposed or 'Defined but not used' in existing Scheme.
'''Yn''': New Scheme.

Sec34 emissions

2010-09-23T10:36:01Z

Alex:

The emission data required by UKCA are currently (vn7.7) handled through the UM ancillary system as 'User defined' items. This puts a limitation on the number of emission species. With the addition of chemistry schemes and enhancement UKCA of itself, there is likely to be an increase in the number as well as complexity (vertical/time profiles, source-wise grouping, ..) of the emissions. Shifting these to Section 34 will give the users more flexibility in handling the emissions through UKCA. This process was actually initiated a while ago and a few of the emission items were 'reserved' in Section 34 as well as the UM ancillary system. This list however, now needs to be revisited in view of the recent and planned developments.

The Table below lists the 'reserved' emission species under Section 34 and their requirement for the existing and near-future chemistry schemes.
{| border="1"
!Item No. || Emission Species || Std. Trop. Chem || Trop Chem + Isoprene || Aerosol Chem || Extended Trop. Chem || Regional AQ Chem || Strat. Chem || CHEST
|-
|180 ||NOX SURFACE EMISSION (AS NO2) || Y || Y || Y || Y || Y || Y || Y
|-
|181 ||CH4 SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|182 || CO SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|183 ||HCHO SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|184 ||C2H6 SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|185 ||C3H8 SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|186 ||CH3COCH3 SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|187 ||CH3CHO SURFACE EMISSION || Y || Y || Y || Y || Y || Y || Y
|-
|188 ||C5H8 (Isoprene) SURFACE EMISSION || || Y || || Y || Y || || Y
|-
|189 ||H2 SURFACE EMISSION || || || || || Y || ||
|-
|190 ||NOX AIRCRAFT EMISSION AS NO2 || Y || Y || Y || Y || Y || Y || Y
|-
|191 ||N2O SURFACE EMISSION || || || || || || ||
|-
|192 ||CFCL3 (CFC-11) SURFACE EMISSION || || || || || || ||
|-
|193 ||CF2CL2 (CFC-12) SURFACE EMISSION || || || || || || ||
|-
|194 ||CFC-113 SURFACE EMISSION || || || || || || ||
|-
|195 ||CH3BR SURFACE EMISSION || || || || || || ||
|-
|196 ||CH3CL SURFACE EMISSION || || || || || || ||
|-
|197 ||CF2CLBR (H-1211) SURFACE EMISSION || || || || || || ||
|-
|198 ||CCL4 SURFACE EMISSION || || || || || || ||
|-
|199 ||CHF2CL (HCFC-22) SURFACE EMISSION || || || || || || ||
|-
|200 ||CH3CCL3 SURFACE EMISSION || || || || || || ||
|-
|201 ||CF3BR (H-1301) SURFACE EMISSION || || || || || || ||
|-
|202 ||SO2 SURFACE EMISSION || || || Y || || || ||
|-
|203 ||DMS SURFACE EMISSION || || || Y || || || ||
|-
|204 ||H2S SURFACE EMISSION || || || || || || ||
|-
|205 ||CS2 SURFACE EMISSION || || || || || || ||
|-
|206 ||COS SURFACE EMISSION || || || || || || ||
|-
|207 ||NH3 SURFACE EMISSION || || || Y || || || ||
|-
|208 ||RADON-222 SURFACE EMISSION || || || || || || ||
|-
|209 ||SO2 HIGH LEVEL EMISSION || || || Y || || || ||
|-
|210 ||SO2 VOLCANIC EMISSION || || || Y || || || ||
|-
|211 ||SO2 BIOMASS EMISSION || || || Y* || || || ||
|-
|212 ||C4H10 SURFACE EMISSION || || || || || Y || ||
|-
|213 ||C2H4 SURFACE EMISSION || || || || || Y || ||
|-
|214 ||C3H6 SURFACE EMISSION || || || || || Y || ||
|-
|215 ||TOLUENE SURFACE EMISSION || || || || || Y || ||
|-
|216 ||O-XYLENE SURFACE EMISSION || || || || || Y || ||
|-
|217 ||CH3OH SURFACE EMISSION || || || || || Y || ||
|-
|218 ||MONOTERPENE SURFACE EMISSION || || || Y || || || ||
|-
|219 ||SESQUITERPENE SURFACE EMISSION || || || || || || ||
|-
|220 ||BLACK CARBON EMISSION FOSSIL FUEL || || || Y || || || ||
|-
|221 ||ORGANIC CARBON EMISSION FOSSIL FUEL || || || Y || || || ||
|-
|222 ||BLACK CARBON EMISSION BIOFUEL || || || Y || || || ||
|-
|223 ||ORGANIC CARBON EMISSION BIOFUEL || || || Y || || || ||
|-
|224 ||BLACK CARBON EMISSION BIOMASS || || || Y || || || ||
|-
|225 ||ORGANIC CARBON EMISSION BIOMASS || || || Y || || || ||
|-
|226 ||PRESCRIBED DUST NUMBER EMISS || || || || || || ||
|-
|227 ||PRESCRIBED DUST EMISS MEAN RADIUS || || || || || || ||
|-
|228 ||PRESCRIBED SEA-SALT NUMBER EMISS || || || || || || ||
|-
|229 ||PRESCRIBED SEA-SALT EMIS MEAN RADIUS || || || || || || ||
|-
|Addl ||APIN SURFACE EMISSIONS || || || || Y || || ||
|-
|Addl ||NVOC SURFACE EMISSIONS || || || || Y || || ||
|}

'''Y''' : Currently used in existing Scheme.
'''Y*''': Proposed or 'Defined but not used' in existing Scheme.
'''Yn''': New Scheme.

Brief Description

2010-09-02T15:54:38Z

Alex:

==Climate Models used by UKCA==

The UKCA model runs within the Hadley Centre version of the Unified Model. There are a number of different versions of this climate model at a number of resolutions which are used for UKCA development.

{| border="1"
! UM Version || Model ||Horizontal Resolution ||Vertical Levels ||Model Top || Scheme Used
|-
|6.1 || HadGAM1a || N48 (2.5°×3.75°) || L60 || ~84km || Tropospheric Chemistry
|-
|6.1 || HadGAM2 || N48 || L60 || ~84km || Stratospheric Chemistry
|-
|6.6.4 || HadGEM2-ES || N96 || L38 || ~40km || Hadley Centre Earth System Model
|-
|7.1 || HadGEM3-A || N96 (1.25°×1.875°) || L38 || ~40km || Tropospheric Chemistry
|-
|7.3 || HadGEM3-A r2.0 || N96 || L38 || ~40km || Tropospheric Chemistry
|-
|7.3 || HadGEM3-A r2.0 || N96 || L63 || ~40km || Tropospheric Chemistry
|-
|7.3 || HadGEM3-A r2.0 || N96 || L85 ||   85km || Stratospheric Chemistry
|-
|7.3 || HadGEM3-A r2.0 || N48 || L60 || ~84km || Stratospheric Chemistry
|-
|7.3 || HadGEM3-AO r2.0 || N48 || L60 || ~84km || QUEST Earth System Model
|-
|}

==UKCA: Currently Available Chemistry Schemes==

* [[Standard Tropospheric Chemistry]]
* [[Tropospheric Chemistry with Isoprene]]
* [[Extended Tropospheric Chemistry (ExtTC)]]
* [[Regional Air Quality (RAQ) Chemistry]]
* [[Standard Stratospheric Chemistry]]
* [[Chemistry of the Stratosphere and Troposphere]]

==UKCA Development Timeline==

===Short-Term Development===

* Stratospheric Chemistry at UM7.3 HadGEM3-A (N96L85 and N48L60) - Luke Abraham
* ASAD Flux Diagnostics at UM7.3 - Luke Abraham
* Improved representation of isoprene oxidation at UM6.1 - Alex Archibald
* Chemistry of Stratosphere and Troposphere - CheST at UM7.3 - Alex Archibald
* Flight track emulator to compare to campaign data at UM7.3 - Paul Telford
* Fast-JX photolysis code validation at UM7.3 - Paul Telford

===Medium-Term Development===

* HadGEM3-AO UKCA - Luke Abraham
* Satellite emulator, including averaging kernels, to improve validation at UM7.3 - Paul Telford
* Couple mode aerosols and fast-jx code at UM7.3 - Paul Telford and ?

===Long-Term Development===

* Coupled UKCA Stratosphere-Troposphere Chemistry with MODE

==UKCA: Model Outline==

Development of UKCA consists of the following subprojects:

===Tropospheric model development===

* HadGEM3 at N96L63 and HadGEM2-ES at N96L38
* {{pdf|Ukca_tropchem_website_jan09.pdf|Tropospheric Configuration of UKCA}} (Fiona M. O’Connor)

===Stratospheric model development===

* HadGEM3 at N96L85/N48L60
* [[Coupled stratospheric chemistry]]

===Aerosols===

* New aerosol species and microphysics
* Aerosol chemistry

===New features===

* Coupled chemistry, aerosols and climate model
* Based on new dynamics
* Combined troposphere-stratosphere chemistry
* Improved aerosol microphysics and chemistry
* Capability to interact with surface, radiation and biosphere
* Modular structure

Brief Description

2010-08-26T11:15:08Z

Alex: /* Short-Term Development */

==Climate Models used by UKCA==

The UKCA model runs within the Hadley Centre version of the Unified Model. There are a number of different versions of this climate model at a number of resolutions which are used for UKCA development.

{| border="1"
! UM Version || Model ||Horizontal Resolution ||Vertical Levels ||Model Top || Scheme Used
|-
|6.1 || HadGAM1a || N48 (2.5°×3.75°) || L60 || ~84km || Tropospheric Chemistry
|-
|6.1 || HadGAM2 || N48 || L60 || ~84km || Stratospheric Chemistry
|-
|6.6.4 || HadGEM2-ES || N96 || L38 || ~40km || Hadley Centre Earth System Model
|-
|7.1 || HadGEM3-A || N96 (1.25°×1.875°) || L38 || ~40km || Tropospheric Chemistry
|-
|7.3 || HadGEM3-A r2.0 || N96 || L38 || ~40km || Tropospheric Chemistry
|-
|7.3 || HadGEM3-A r2.0 || N96 || L63 || ~40km || Tropospheric Chemistry
|-
|7.3 || HadGEM3-A r2.0 || N96 || L85 ||   85km || Stratospheric Chemistry
|-
|7.3 || HadGEM3-A r2.0 || N48 || L60 || ~84km || Stratospheric Chemistry
|-
|7.3 || HadGEM3-AO r2.0 || N48 || L60 || ~84km || QUEST Earth System Model
|-
|}

==UKCA: Currently Available Chemistry Schemes==

* [[Standard Tropospheric Chemistry]]
* [[Tropospheric Chemistry with Isoprene]]
* [[Extended Tropospheric Chemistry (ExtTC)]]
* [[Regional Air Quality (RAQ) Chemistry]]
* [[Standard Stratospheric Chemistry]]

==UKCA Development Timeline==

===Short-Term Development===

* Stratospheric Chemistry at UM7.3 HadGEM3-A (N96L85 and N48L60) - Luke Abraham
* ASAD Flux Diagnostics at UM7.3 - Luke Abraham
* Improved representation of isoprene oxidation at UM6.1 - Alex Archibald
* Chemistry of Stratosphere and Troposphere - CheST at UM7.3 - Alex Archibald

===Medium-Term Development===

* HadGEM3-AO UKCA - Luke Abraham

===Long-Term Development===

* Coupled UKCA Stratosphere-Troposphere Chemistry with MODE

==UKCA: Model Outline==

Development of UKCA consists of the following subprojects:

===Tropospheric model development===

* HadGEM3 at N96L63 and HadGEM2-ES at N96L38
* {{pdf|Ukca_tropchem_website_jan09.pdf|Tropospheric Configuration of UKCA}} (Fiona M. O’Connor)

===Stratospheric model development===

* HadGEM3 at N96L85/N48L60
* [[Coupled stratospheric chemistry]]

===Aerosols===

* New aerosol species and microphysics
* Aerosol chemistry

===New features===

* Coupled chemistry, aerosols and climate model
* Based on new dynamics
* Combined troposphere-stratosphere chemistry
* Improved aerosol microphysics and chemistry
* Capability to interact with surface, radiation and biosphere
* Modular structure

Brief Description

2010-08-26T11:14:14Z

Alex: /* Short-Term Development */

==Climate Models used by UKCA==

The UKCA model runs within the Hadley Centre version of the Unified Model. There are a number of different versions of this climate model at a number of resolutions which are used for UKCA development.

{| border="1"
! UM Version || Model ||Horizontal Resolution ||Vertical Levels ||Model Top || Scheme Used
|-
|6.1 || HadGAM1a || N48 (2.5°×3.75°) || L60 || ~84km || Tropospheric Chemistry
|-
|6.1 || HadGAM2 || N48 || L60 || ~84km || Stratospheric Chemistry
|-
|6.6.4 || HadGEM2-ES || N96 || L38 || ~40km || Hadley Centre Earth System Model
|-
|7.1 || HadGEM3-A || N96 (1.25°×1.875°) || L38 || ~40km || Tropospheric Chemistry
|-
|7.3 || HadGEM3-A r2.0 || N96 || L38 || ~40km || Tropospheric Chemistry
|-
|7.3 || HadGEM3-A r2.0 || N96 || L63 || ~40km || Tropospheric Chemistry
|-
|7.3 || HadGEM3-A r2.0 || N96 || L85 ||   85km || Stratospheric Chemistry
|-
|7.3 || HadGEM3-A r2.0 || N48 || L60 || ~84km || Stratospheric Chemistry
|-
|7.3 || HadGEM3-AO r2.0 || N48 || L60 || ~84km || QUEST Earth System Model
|-
|}

==UKCA: Currently Available Chemistry Schemes==

* [[Standard Tropospheric Chemistry]]
* [[Tropospheric Chemistry with Isoprene]]
* [[Extended Tropospheric Chemistry (ExtTC)]]
* [[Regional Air Quality (RAQ) Chemistry]]
* [[Standard Stratospheric Chemistry]]

==UKCA Development Timeline==

===Short-Term Development===

* Stratospheric Chemistry at UM7.3 HadGEM3-A (N96L85 and N48L60) - Luke Abraham
* ASAD Flux Diagnostics at UM7.3 - Luke Abraham
* Chemistry of Stratosphere and Troposphere - CheST at UM7.3 - Alex Archibald

===Medium-Term Development===

* HadGEM3-AO UKCA - Luke Abraham

===Long-Term Development===

* Coupled UKCA Stratosphere-Troposphere Chemistry with MODE

==UKCA: Model Outline==

Development of UKCA consists of the following subprojects:

===Tropospheric model development===

* HadGEM3 at N96L63 and HadGEM2-ES at N96L38
* {{pdf|Ukca_tropchem_website_jan09.pdf|Tropospheric Configuration of UKCA}} (Fiona M. O’Connor)

===Stratospheric model development===

* HadGEM3 at N96L85/N48L60
* [[Coupled stratospheric chemistry]]

===Aerosols===

* New aerosol species and microphysics
* Aerosol chemistry

===New features===

* Coupled chemistry, aerosols and climate model
* Based on new dynamics
* Combined troposphere-stratosphere chemistry
* Improved aerosol microphysics and chemistry
* Capability to interact with surface, radiation and biosphere
* Modular structure

Participants

2010-05-07T09:17:46Z

Alex:

==UKCA Managers==

* Prof. John Pyle (Univ. Cambridge)
* Dr. Colin Johnson (Met Office)
* Prof. Ken Carslaw (Univ. Leeds)

==Support==

'''NCAS-CMS UKCA Support Officer'''
* Luke Abraham

==University of Cambridge==

'''Chemistry'''
* Luke Abraham
* Glenn Carver
* Peter Braesicke
* Paul Telford
* Genevieve Millard
* Rene Hommel
* John Pyle
* Alex Archibald

==University of Leeds==

'''Aerosols'''
* Ken Carslaw
* Graham Mann
* Maria Grazia Frontoso
* Matt Woodhouse
* Anja Schmidt
* Dave Ridley
* Francois Benduhn
* Helen Macintyre
* Jo Browse
* Kathryn Emmerson
* Tom Breider

==Met Office==

* Colin Johnson
'''Chemistry'''
* Fiona O’Connor
* Gerd Folberth
* Bill Collins
'''Aerosols'''
* Nicolas Bellouin
* Jim Haywood
* Jamie Rae
'''L60 Dynamics'''
* Andrew Bushell
* Neal Butchart
'''Air Quality'''
* Nick Savage

==University of Reading==

'''L60 Dynamics'''
* Lesley Gray

==University of Oxford==

'''L60 Dynamics'''
* Scott Osprey