Minutes of the code management group meeting 2018-06-19
From UKCA
Teleconference Details
Tuesday 19th June 2018, 10am - 12noon BST
- UK Landline: +44 (0)1223 761376 (x61376from an internal University of Cambridge phone)
- Participant PIN: 154070
Present
Met Office:
Cambridge:
Leeds:
Reading:
Lancaster:
Edinburgh:
UEA:
NIWA:
CSIRO:
Apologies:
Not present:
Actions from this meeting
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 2018-04-17
One-off actions
- (new) MY to check GLOMAP-mode code and report any missing bug fixes on the bugfixes page.
- (new) LA to liaise with MY.
- (ongoing) LA to migrate PUMA UM tickets to MOSRS - see 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.
- (new) AH to look into how to re-organise the UKCA panel and send draft design to CMG by 15th May 2018
- (new) LA to forward email from Systems Team to AH
- (new) ALL to feedback to AH ahead of next CMG (by 5th June 2018)
- (ongoing) MD to collate all UKCA parameters into
ukca_constantsin advance of removing duplicates already available in the UM and circulate details. - (ongoing) AH to scope out reducing repetition of mode definitions in GLOMAP.
- (ongoing) LA and MD to talk offline about releases.
- (ongoing) MD to correct column-call rose-stem tests when pressure-level age-of-air diagnostic bugfix is lodged.
- (ongoing) MD/LA to set up free-running and nudged GA7.1+StratTrop TS2000ish timeslice, with instructions to make it transient.
- (ongoing) LA to create Wiki page on UKCA website for users to add details of configurations and input files.
- (new) FOC to update comments on bug #74 (um:#1283)
- (new) LA to update bugfixes table.
- (new) ALL to review output from vn11.0 release candidate(s).
- (new) JM to discuss vn11.0 with Matt Woodhouse at his upcoming visit to the Met Office.
- (new) MG to progress ticket um:#3909 after doing further tests.
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)
Open Bugs
| # | Description | Ticket | Owner | Status/ Updates | Comments from previous meeting | Comments from this meeting |
|---|---|---|---|---|---|---|
| 35 | Error in labelling: Surface resistance <--> stomatal resistance ? | MOSRS #1409 | Fiona O'Connor | Leave open. Garry Hayman started work in offline JULES | ||
| 72 | UKCA Dry Deposition: Surface resistance values not set for some species |
#1250 follow on #3997 |
AlanJHewitt | Lodged #1250 with no KGO Temporary logical to be removed in #3997 need to update rose stem tests |
Leave open. | |
| 74 | Bug in ukca_tropopause with definition of PV tropopause | #1283 | Fiona O'Connor | FOC to update comments. Scope has been extend. | ||
| 75 | Bug in STE fluxes | #1367 | Fiona O'Connor | Leave open. Still not sure if ENDGame related or not. | ||
| 87 | Possible issues with YSTORE in UKCA_CHEMISTRY_CTL. | UM#3245 | Colin Johnson/ Luke Abraham |
leave open. | ||
| 94 | Data corruption in Age-of-Air (and possibly Passive O3) diagnostic on pressure levels | UM#3718 | Mohit Dalvi | To be lodged at vn11.1. See um:#3718. | ||
| 96 | Output drydiam diagnostics where l_ukca_arg_act but not l_ukca_radaer | UM#3962 | Unknown | The beginnings of a solution are found in vn11.0_ukca_drydiam_activate_wo_radaer. |
Redundant Code (LA)
Code for deletion
| # | Description | Ticket | Remarks | Status | Timeframe | Owner | Comments from this meeting |
|---|---|---|---|---|---|---|---|
| 2 | Old dry deposition scheme | #2356 | None | PROPOSED | Medium-term | Nick Savage | |
| 4 | ukca_strat_update.F90 - relax_ozone | #1505 | None | PROPOSED | Medium-term | Luke Abraham | |
| 5 | Backward Euler Standard Tropospheric Chemistry | #1507 | None | PROPOSED | Medium-term | Fiona O'Connor | |
| 6 | Wet oxidation of SO2 in GLOMAP | None | None | PROPOSED | Medium-term | Colin Johnson | |
| 7 | Updraft velocity | #3668 | Proposed in December 2017 | PROPOSED | Medium-term | Alan J Hewitt | |
| 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 | #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. |
| 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 |
UKCA Release Job (LA/MD)
Targets for vn11.2 (and beyond) (LA)
PLEASE REMEMBER TO INCLUDE THE KEYWORDS: UKCA & SC0138
Tickets targeting vn11.2
UKCA Rose panel (AH)
Please see um:#3970 and the code branch r54617_BoBoB_tidy_ukca_gui_panel.
Source/sector information for UKCA emissions (MD)
Please see: 
Design_UKCA_emiss_sectorwise_v1_4Jun2018.pdf 
A Separate UKCA Code Repository
Please see this document for the UMPB on the 4th June, and the subsequent minutes. The action on LA from the UMPB was:
- UMPB Action: LA - as a next step, set up a meeting with interested parties in the UM system team to discuss details after the release
