Difference between revisions of "Minutes of the code management group meeting 2022-05-10"
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+ | |''13'' || ''Fixes for chemistry rates and ASAD (bugs #101 & #103)'' || ''Luke Abraham'' || ''YES'' || ''#101 still open, #103 completed (necessary for GC5 ticket [https://code.metoffice.gov.uk/trac/gmed/ticket/551 GMED:#551]) <br/> Issues on EX1A. <br/> '''Closed''' - see also [https://code.metoffice.gov.uk/trac/UKESM/ticket/841 UKESM:#841] for UKCA package ticket'' || |
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|14 || Rc fixes for water (bug #104) || UKESM Core Team || YES || Lodged at UMvn11.7 in ticket [https://code.metoffice.gov.uk/trac/um/ticket/5167 UM:#5167] || |
|14 || Rc fixes for water (bug #104) || UKESM Core Team || YES || Lodged at UMvn11.7 in ticket [https://code.metoffice.gov.uk/trac/um/ticket/5167 UM:#5167] || |
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+ | |''15'' || ''CH4 deposition fixes (bug #109)'' || ''Gerd Folberth'' || ''YES'' || '''''Closed''''' || |
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|16 || UKCA STASHmaster PP-codes || Luke Abraham || || Verification system makes some use of existing PP-codes. '''New items should have a PP-code of 0''' and verification team will use STASH items for these if required. || |
|16 || UKCA STASHmaster PP-codes || Luke Abraham || || Verification system makes some use of existing PP-codes. '''New items should have a PP-code of 0''' and verification team will use STASH items for these if required. || |
Revision as of 09:24, 4 May 2022
Teleconference Details
Tuesday 10th May 2022, 10.00am - 11.30am GMT
Meeting via Zoom - details have been emailed
Met Office:
Cambridge:
Leeds:
NIWA:
CSIRO:
Apologies:
Actions from this meeting
Actions from the Last Meeting (NLA)
Minutes of the code management group meeting 2022-03-29
- (ongoing) NLA to put
C_SPECIES
definitions in the Redundant Code table (short-term), and switch to useM_SPECIES
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. LA to make a branch and progress. - (ongoing) Monsoon users MASS data Management. Removal commands issued for ~550 umui jobs (total 175Tb). List from Oxford still awaited. MD to contact PS again.
- (new) NLA to contact UKCA SMB and ask for feedback on setting a 'delete-by' deadline for Oxford MASS data.
- (ongoing) GM (supported by KP/MY/AH) has made a table on UKCA wiki documenting GLOMAP versions. ALL to read, GM & others to update table.
- (ongoing) JH to update API document to reflect the UMvn12.2 release
- (ongoing) Unprotected rose-stem options: MD to look at highorder_scheme.
- (ongoing) Unprotected rose-stem options: AJH to look at i_mode_setup=6
- (ongoing) ALL look at um:#6203 showing other unprotected rose-stem options and think about any code/settings they are interested in.
- (ongoing) DG/AH/GM to consider the code and lodging process for GLOMAP developments. DG working on porting code either from GLOMAP v8.0 or v8.2.
- (new) NLA to reply to email thread regarding GLOMAP lodging after this meeting
- (ongoing) NC to add a test for 2-D photolysis as part of Photolysis API changes
- (ongoing) MR to discuss with AH, HG and update the CMG on any issues related to UKCA ancil creation in Nesting Suite
- (ongoing) NLA, AJH to identify owners for TropChem and StratChem items in the Desirable changes not Tested Table. AJH to arrange call with NLA.
- (ongoing) JH,AH,AJH to update Mark (and possibly wider CMG) on LFric developments and UKCA aerosol code status. May want to talk with Simon Wilson at NCAS CMS who has a containerised version of LFRic.
- (ongoing) MD to take a look at EX1A issues (um:#6610). NLA to cc MD into email from Rich Gilham. MD to give update on the rose-stem failures on the EX1A HPC to email chain.
- (new) NLA to follow-up on the status of issues with GMED:#551.
- (new) MS to email Oliver Wild and NLA with chemical solver issues.
- (new) NLA to update categorisation list too from UKCA:#4 ticket.
- (new) NLA to add ukca_chem_master to list as the aim is to move to a file read for the chemical mechanism. Also consider doing a file read to tabulate the required diagnostic output.
- (new) SAN to contact JH about dependencies
- (new) NLA to send a Doodle poll round for mid-May avoiding EGU (23rd-27th May)
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 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 for special occasions, e.g. to coincide with Composition-Climate Meeting.
- (ongoing - standing item) Code Owner to produce draft newsletter for CMG to approve.
- (ongoing - standing item) ALL to consider other rose-stem tests that could be included.
- (ongoing - standing item) ALL to email NLA with suggestions for next set of tutorials.
Tickets (NLA)
Tickets on MOSRS:
- UMvn12.3 Tickets (Jun-22)
- LFRic Tickets (May-22)
- LFRic Tickets (August-22)
- UKCA Tickets (Migrate Code)
PLEASE REMEMBER TO USE THE UKCA KEYWORD FOR ALL UKCA CHANGES
NOTE: The UM requirement for LFric testing
of all changes under src/atmosphere
Please also give any feedback on the UMvn13.0 release cycle to NLA to pass-back to UM Sys.
Update on UKCA API redesign (JH)
Documents:
- UKCA_API_design_proposal_v5.pdf
- UKCA_Modules_at_UMvn12.0.pdf
- https://code.metoffice.gov.uk/trac/ukca/wiki/ticket/4/CodeToMove
- UKCA_dir_mods_vn12.2.pdf
- GLOMAP_CLIM_dir_mods_vn12.2.pdf
UKCA Developments over 2022 (NLA)
Meetings:
Tickets:
Progress with Priorities (NLA)
ACTION REQUEST FROM UKCA SCIENCE & MANAGEMENT BOARD: CMG to provide list of priorities & their status, with particular thought to UKESM2 changes that will be required.
The current priorities are:
# | Description | Owner | Desirable for UKESM2? | Status | Comments from this meeting |
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1 | UKCA API | John Hemmings (main) | No | UKCA API work is progressing (AJH). Radaer API on hold until after GA7 port to LFRic. Functionality of RADAER in LFRic will work without an API although it will be preferable to update this in future. | |
2 | Review UKCA tests to cover all requirements | Luke Abraham / Mohit Dalvi | Will cover these in a table in future for review. | ||
3 | Updates/fixes to GLOMAP routines | YES | AH asked about the stratospheric changes from a UKESM2 context, and whether there is any help for these. | ||
4 | Standalone UKCA configurations | Luke Abraham/Scott Archer-Nicholls | ExCALIBUR work progressing. Aim to remove UKCA from UM trunk at vn12.3. |
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5 | Emissions flexibility | Mohit Dalvi | |||
6 | Separare UKCA repository | Luke Abraham | Separate UKCA trac environment set-up on MOSRS here, will hold UKCA code on completion of current ExCALIBUR project. Aiming for vn12.3. |
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7 | Non-API LFRic work, e.g. Porting science functionality etc. | Alan J Hewitt | No | Porting calculation of CDNC from GLOMAP Climatology aerosols complete. I will pass required elements of ukca_radaer to ukca_radaer_band_average (um:#5957) Porting calculation of fields in radaer_band_average to be passed to Socrates underway(lfric:#2488) Includes RADAER, need to use imode_setup=8 RADAER now callable from LFRic, can do GA-type comparisons from LFRic to UM. JH to put UKCA into LFRic soon - working in an SCM configuration (GLOMAP with offox) - needs more testing. A lot more work to do, possibly until end of 2021. AJH has tickets going in for 12.1 that would cover all of the basic GA7 but with climatological aerosol. JH tickets will do the prognostic alternative. JH currently has an LFRic-SCM configuration with prognostic aerosol. JH now has UKCA working in proto-GAL7 (LFRic) config. Needs to couple with convection & plume scavenging. Convection & plume scavenging has been done. |
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8 | RADAER API | Alan Hewitt (main) | No | Radaer API on hold until after GA7 port to LFRic. Functionality of RADAER in LFRic will work without an API although it will be preferable to update this in future. Not clear if RADAER will work independently of UM in single column mode. AJH and AH and JH and Ben Johnson and NB need to work out if desirable and practical to run independent of UM. |
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9 | RADAER optimisation | NO | AJH highlighted that there have been some discussions about this - a few people interested in this (James Manners, AH, Ben Johnson, AJH). Have had someone looking to see if something could be changed to make it faster to make a trimmed-down version with less calculations for e.g. NWP. | ||
10 | Dry deposition and Jules tiles | YES | If Jules adds extra tiles for UKESM2 we may need to hard code options in dry deposition (like in um:#1761) | ||
11 | FastJX-GLOMAP coupling | YES | UMvn10.8 branches exist - see ticket UM:#2689 Note: FastJX rates also need updating - potential for code as well as input-file changes |
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12 | Cloud-J | ||||
13 | Fixes for chemistry rates and ASAD (bugs #101 & #103) | Luke Abraham | YES | #101 still open, #103 completed (necessary for GC5 ticket GMED:#551) Issues on EX1A. Closed - see also UKESM:#841 for UKCA package ticket |
|
14 | Rc fixes for water (bug #104) | UKESM Core Team | YES | Lodged at UMvn11.7 in ticket UM:#5167 | |
15 | CH4 deposition fixes (bug #109) | Gerd Folberth | YES | Closed | |
16 | UKCA STASHmaster PP-codes | Luke Abraham | Verification system makes some use of existing PP-codes. New items should have a PP-code of 0 and verification team will use STASH items for these if required. | ||
17 | Removal of redundant code | ALL | No | Parked whilst GA7.0 is a protected suite. | |
18 | GLOMAP-CLIM API refresh | Alan J Hewitt | No | Parked until science functionality around GLOMAP aerosols ported to LFRic. | |
19 | N48L85 configuration | ||||
20 | ACTIVATE optimisation | TBC | A quick win here is to reduce nwbins in namelist ( see um:#4740 ). Parked for now. |
There does not seem to be resource to look at this at present. | |
21 | Stratospheric Ozone improvements | James Keeble/Luke Abraham | YES UKESM:#729 |
Work ongoing, covered in ticket UM:#5641. Note: FastJX rates also need updating - potential for code as well as input-file changes See also UKESM:#841 for UKCA package ticket |
|
22 | Solar cycle in photolysis | Luke Abraham | YES UKESM:#732 |
Some code lodged at UMvn10.9 (UM:#2587) but needs bugfixing. This work has stalled in ticket UM:#4828 (bug #110). UM:#4828 lodged for UMvn12.2. See also UKESM:#841 for UKCA package ticket |
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23 | Deposition updates from CSIRO | YES UKESM:#730 UKESM:#739 |
Code lodged in UM:#4020 (UMvn11.4, oceanic dry deposition) and UM:#5713 (UMvn11.8, Lightning NOx updates). See also UKESM:#841 for UKCA package ticket |
Bugs/Bugfixes (NLA)
Open Bugs
# | Description | Ticket | Owner | Comments | Comments from this meeting |
---|---|---|---|---|---|
35 | Error in labelling: Surface resistance <--> stomatal resistance ? | UM:#1409 um:#5751 |
Fiona O'Connor/Garry Hayman | Leave open. Garry Hayman started work in offline JULES. Still ongoing. JM found bug in SO2 deposition, where there is an inconsistency when changing tiles. Making progress. Leave open. GH gave update, has done a lot of work. Concerned it might not be bit-reproducable, but could be solvable. Encouraging to lodge existing. Resistances done as metadata. Not clear as to timescales. FOC to encourage Garry Hayman to start lodging JULES code piecemeal. LA to email GH, cc JM JM to email GH GH adding improvements via UM:#5751 GH targeting 12.2 um:#5751 was in code review for UMvn12.2 but failed to progress - aiming for early in vn12.3 release cycle. |
Should be lodged for vn12.3. Will be put into UKESM2. |
124 | H2 and N2 cannot be set for RCP and WMOA1 scenario routines | UM:#5620 | Mohit Dalvi | Values are hard-wired in the code and cannot be changed without a branch Will be handled at UM11.8 At least for the next version Keep open |
Ongoing |
128 | Bug in UKCA stratospheric chemistry diagnostics | UM:#5839 | Luke Abraham | pre-UMvn10.0. The indexing/values of diagnostics m01s50i101-i104 are incorrect. Fixes provided for vn11.1 and vn11.7. May affect CMIP6 diagnostics May be best to lump #101. NLA to contact JM Should be fixed for UKESM2 Biggish ticket for 12.2 with bug fixes. |
See if can be done for 12.3 |
135 | The SO2 dry deposition improvements added under #5167 do not work for Convection permitting configurations (e.g Nested suite) and fail due to absence of Convection diagnostics. | um:#6433 | The error message could be turned to a warning and related fields initialised to zero | ||
136 | There appears to be a bug in some Section 51 diagnostics. | 6598 | 51996 and 51999 are fine. 51921 and 51922 are broken. Other fields unknown. Problem uncovered during 6358 |
May just linger. Should we take the broken ones out? | |
138 | Missing dry deposition settings in ukca_aerod for RA13NO3, RA16NO3 and RA19NO3 for CRI-Strat v2. | um:#6626 | Garry Hayman | Discovered in um:#5751. | Should be being fixed in um:#5751 (for UMvn12.3) |
139 | Several rose-stem failures on the new EX1A HPC | um:#6610 | Mohit Dalvi | Also impacts use of gmed:#551. This has LFRic impacts, but LFRic are currently testing with GAL7. At GAL9, could cause significiant issues. MD to take a look at EX1A issues (um:#6610). NLA to cc MD into email from Rich Gilham. |
Stability & bit-comparison issues. ACTION: MD to give update on the rose-stem failures on the EX1A HPC to email chain. |
Redundant Code (NLA)
Code for deletion
PLEASE REMEMBER TO EDIT THE ORIGINAL REDUNDANT CODE TABLE AND NOT THIS PAGE
- The NG-Composition Project Board has agreed to use the Redundant code table as the Technical Debt Log for UKCA as part of that project. This has highlighted the issue that some areas of code are not listed as being redundant, but are also not tested/used routinely and are not in any rose-stem tests, for example 2D photolysis and the TropIsop and Strat chemistry schemes. We have been asked to review this code and list untested code which is still desirable to be included for testing, and to ensure that other areas of code are listed for deletion.
# | Description | Ticket | Remarks | Status | Timeframe | Owner | Comments from previous meetings | Comments from this meeting |
---|---|---|---|---|---|---|---|---|
4 | ukca_strat_update.F90 - relax_ozone | UM:#1505 | None | PROPOSED | Medium-term | Luke Abraham | ||
5 | Backward Euler Standard Tropospheric Chemistry | UM:#1507 | None | PROPOSED | Medium-term | Fiona O'Connor | ||
6 | Wet oxidation of SO2 in GLOMAP | UM:#4475 | None | PROPOSED | Medium-term | Colin Johnson | JM to look at this re: UKESM1 c.f. offline GLOMAP. JM to take ownership. Still needed for CTM. Relevance for standalone code and later coupling to CTM. |
|
7 | Updraft velocity - l_conv_tke | 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 | 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. These have been removed from AQUM. AQUM work has been done. From AS: In the ancil ticket linked from #2513 (https://code.metoffice.gov.uk/trac/ancil/ticket/782) it says that GA7 depends on the old format files, and as far as I know this is still true. In the 3-step timeline suggested, we haven't reached step 2 unfortunately. That ticket was about ensuring GA8 did not use the old attributes. I believe that GA8 is due for release in the next few months (it has been a very long time coming), so UM vn11.5 may be the last version at which GA7 is supported. Do you mind waiting a bit longer? AJH to follow-up with LA |
|
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 C_SPECIES constants and calculate these from M_SPECIES 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 UM:#2405 |
UM:#3490 | Requires AMIP testing and a GMED ticket Could be accepted to GA9 |
PROPOSED | Medium-term | Jane Mulcahy | See JM GMED action | |
15 | Remove temporary logical l_fix_ukca_impscav Introduced at UM:#1421 |
UM:#4145 | Approval being sought for GA series (likely GA9) GMED:#402 |
PROPOSED | Medium-term | Alan J Hewitt | See JM GMED action | |
16 | Remove temporary logical l_fix_improve_drydep Introduced at UM:#1250 |
UM:#3997 | Approval being sought for GA series (likely GA9) GMED:#393 |
PROPOSED | Medium-term | Alan J Hewitt | See JM GMED action | |
17 | Remove temporary logical l_fix_ukca_h2dd_x Introduced at UM:#4157 |
UM:#4245 | Approval being sought for GA series (likely GA9) GMED:#410 |
PROPOSED | Medium-term | Alan J Hewitt | See JM GMED action | |
18 | Remove temporary logical l_fix_neg_pvol_wat Introduced at UM:#4383 |
UM:#4416 | Approval being sought for GA series (likely GA9) GMED:#421 |
PROPOSED | Medium-term | Alan J Hewitt | ||
21 | Remove code behind L_use_stratclim from ukca_fastjx_mod Introduced prior to MOSRS |
UM:#4854 | This could either be properly included via a namelist or removed from the UM | PROPOSED | Medium-term | Alan J Hewitt | LA contact OW about progressing FastJX-RADAER work Ties in with API work. MD/NC to take a look, can be removed. Do as part of API. Relevant person take ownership as part of API work NC to take ownership as part of his work |
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22 | Remove temporary logical l_fix_ukca_input_meoh_emiss Introduced at UM:#3031 |
UM:#4848 | Approval being sought for GA series (likely GA9) GMED:#461 |
PROPOSED | Medium-term | Mohit Dalvi | ||
24 | Remove ability to use of Cambridge 2D model data from ukca_stratf.F90 | PROPOSED | Neal Carr | Need to confirm from wider community for possible tropospheric configs and other choices for top-bdy |
ACTION: NLA to add ukca_chem_master to list as the aim is to move to a file read for the chemical mechanism. Also consider doing a file read to tabulate the required diagnostic output.
OM highlighted that a key strength of ukca_chem_master is in having everything in one list so rates are consistent. NLA mentioned having issues removing reactions if keep the current qualifiers and versioning system.
JH is targeting diagnostic output from UKCA for Jan 2023.
Desirable Science not tested
PLEASE REMEMBER TO EDIT THE ORIGINAL SCIENCE NOT TESTED TABLE AND NOT THIS PAGE
See also the complete list of unprotected rose-stem options
# | Description | Ticket | Remarks | Owner |
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1 | Use of tropospheric (2D) look-up table photolysis | Still useful to compare against FastJX. May be used for a "fast" configuration. Will be doen as part of photolysis refactoring | NC | |
2 | TropIsop chemistry configuration | May be useful in a "fast" configuration & to drive GLOMAP-mode. Useful for low-top configurations. | ||
3 | Strat chemistry configuration | Useful for stratospheric studies, particularly with a high model top. |
Round (virtual) Table of current activities, plans
Person | Activity |
---|---|
NLA | eCSE project on Flight Track output is continuing. Maria Russo has this working as a post-processing task using cf-python and CIS. She has also produced some functions to convert cf-python data structures to Iris and CIS structures (https://github.com/MariaRusso/CF-CIS-Iris_python_tools) |
A.O.B. & D.N.M. (NLA)
- (NLA) NERC Advanced Training: Short Courses call has been re-opened. Currently preparing a case for support to re-start the UKCA training workshop in some form.
UM, LFRic, NAME etc. will be covered, but principally aiming to use the UKCA Box Model for the training.
AJH asked about NAME work. FM mentioned that PMJ is working with Box Model, but still need a few things fixed and had been in contact with JH & SAN. JH mentioned that it will also be easier once work is done on the dependencies, and SAN commented that it would also be useful for the Box Model work.
ACTION: SAN to contact JH about dependencies
Date of next meeting (NLA)
ACTION: NLA to send a Doodle poll round for mid-May avoiding EGU (23rd-27th May)