Difference between revisions of "Minutes of the code management group meeting 16/09/2014"
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Based on the evaluation of results it was felt job is not yet fit-for-purpose with respect to aerosols/ AOD and some tunings related to EPS values and SO2 scavenging should be tried.<br/> |
Based on the evaluation of results it was felt job is not yet fit-for-purpose with respect to aerosols/ AOD and some tunings related to EPS values and SO2 scavenging should be tried.<br/> |
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Status to be re-assessed at next CMG.<br/> |
Status to be re-assessed at next CMG.<br/> |
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| + | CJ suggested enchancing the documentation to list the major science/ technical settings and possibility of comparing these with the previous (VN7.3) release jobs. |
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== Bug Reporting == |
== Bug Reporting == |
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== Additional invitees == |
== Additional invitees == |
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| + | While there is a need to expand the developer-representation at the CMG forum, it was decided -in the first instance- to invite persons that are or can be actively involved in contributing to the UKCA codebase. This process will start with Reading, Mark Richardson at Leeds and then extended to others e.g. Imperial, Uni Edinburgh, CSIRO. <br/> |
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| + | The possibility of keeping the core CMG limited but seeking user/ developer inputs before each meeting was also considered. |
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| ⚫ | |||
| + | Code freeze deadline is 3rd October.<br/> |
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| + | UKCA related Tickets lodged/ Code Review so far:<br/> |
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| + | * 6114 Improved aerosol scavenging processes in GLOMAP-Mode |
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| + | * 6376 Fix mismatch in levels for non-transported UKCA prognostics |
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| + | * 6443 Fast-JX fails if .NOT. L_PC2 and .NOT. l_3d_cca |
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| + | UKCA related Tickets ''expected'' to be lodged by deadline :<br/> |
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| ⚫ | |||
| + | * 5503 Pipework to deliver bVOC emissions from JULES to UKCA |
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| − | |||
| + | * 5632 Add convective scavenging to 6A convection scheme |
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| − | * 9.1 will be released soon. NS to add UKCA specific release notes to the UKCA website (as for earlier releases). There are three key things to be aware of at this release. |
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| + | * 5755 UKCA aerosol sedimentation speed limit |
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| − | ** The non transported prognostics are now controlled via option codes as for the tracers and so do not need STASH changes to turn them on |
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| + | * 5900 Calculate section 34 diagnostics on pressure levels |
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| − | ** From this release there will be no more User STASHmaster files. Instead users will need to edit the STASHmaster_A in their branch (rose-meta/um-atmos/vn9.0/etc/stash/STASHmaster) and ensure that their suite installs this and uses it correctly. |
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| + | * 5980 Clear-sky relative humidity in AOD diagnostics for GLOMAP-mode |
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| − | ** Namelist reads also need some additional work as now only PE0 reads the namelists and broadcasts the names. This means some additional code is needed beyond just adding new items to the relevant names. |
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| + | * 6009 Tuning of biomass burning emissions and secondary organic aerosol production |
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| − | |||
| + | * 6208 Provide backward-Euler solver for offline oxidants chemistry |
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| − | == Priorities for future releases == |
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| + | * 6238 Enable Age-of-air tracer with Offline Chemistry. |
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| − | Some ideas from the round table were: |
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| + | * 6330 Rationalise the application of Priestley conservation to CLASSIC and UKCA tracers |
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| − | * 150+ tracers. |
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| + | * 6429 Bug fix for OC emissions from biomass burning |
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| − | * Ammonium nitrate |
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| − | * Dry deposition consistency between aerosols and gases |
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| − | * Dry deposition to cope with flexible land surface tiling |
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| − | * Solver improvements from JWCRP post |
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| − | * Nenes activation scheme |
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| − | * Plume scavenging of gas phase tracers |
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| − | * Any fixes for NOy problem |
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| − | * GLOMAP Aerosol coupled to Fast-JX |
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| − | * Improved heterogeneous chemistry in stratosphere (based on scheme used in troposphere) |
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| − | * Speciated CFC (depends on 150+ tracer updates) |
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| − | * Improved aerosol microphysics in stratosphere |
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| − | * improved BL ncuelation (organics) |
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| − | * modal dust |
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| − | |||
| − | All to add to above list if necessary. Discuss and prioritise at next meeting. |
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| − | |||
| − | == Issues for UM project board == |
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| − | * Testing. NS has already contributed. Any other thoughts on this to Luke. |
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| − | * Challenges of submitting code for use with Rose. CJ expressed concern that the additional work now needed when adding new code to the trunk will completely negate the benefits of having a shared repository. Devlopers will look at the long list of things they have to do and turn off. This will mean we do not get an increase in the number of developers outside the Met Office lodging code. We need to look for ways to streamline the process. |
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== Date of next meeting == |
== Date of next meeting == |
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| + | NS to send Doodle poll for alikely date - late November/ early December |
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| − | LA to set up doodle poll for next meeting in September. Not week of IGAC (22-26 September) or AEROCOM (September 29 to October 2). |
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| − | |||
| − | == AOB == |
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| − | |||
| − | * CJ asked if he could add the new diagnostics associated with ammonium nitrate into STASH 38.101-200. This has been used in the past by strat-trop exchange diagnostics. Agreed that this is now dealt with by section 50. |
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| − | * CJ also thank NS for work as UKCA code owner. |
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[[Category:Minutes]] |
[[Category:Minutes]] |
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Revision as of 15:25, 16 September 2014
UKCA Code Management Meeting, 16 Sep 2014 (tele-conference)
Participants:
Met Office: Nick Savage (NS), Mohit Dalvi (MD), Colin Johnson(CJ), Fiona O'Connor (FC), Jane Mulcahy (JM)
Leeds: Graham Mann (GM)
Apologies:
Cambridge: Luke Abraham (LA), Alex Archibald (AA)
Oxford: Zak Kipling (ZK)
Leeds: Sandip Dhomse (SD)
Actions from this Meeting
- NS to circulate to all the method to access ukca_bugs emails through Outlook.
- ALL. Communicate any foreseen UKCA improvements to FOC before next Code Mgmt meeting
- JM to check whether settings, branches in vn8.4 Release candidate are consistent with GA6/7 assessment job and also attempt tuning of SO2 scavenging parameters.
- NS/LA. Add standing agenda item on Bug Reporting.
- NS to email Nicolas B. regarding participation in CMG meetings/ process.
- NS. Create doodle poll for next meeting
Actions Carried forward from Last Meeting
- CJ to circulate plots of radical concentrations in stratosphere showing odd banded structure, including version with different photolysis scheme options. Ongoing.
- CJ to email LA re problems with SO2 diagnostics for emissions. Issues related to using ASAD diagnostics package Ongoing
- CJ to open ticket and start work on resolving inconsistencies in aerosol chemistry schemes. (unused tracers-CS2, missing chemistry in CHEST, above diagnostics) Ongoing
- GM check 8.4 versus 7.3 GLOMAP-mode code and report any bug fixes to Mohit. Ongoing
Agenda Items
Status of release job
Details of Release Candidate are available at: Vn8.4_GA4.0_Release_Candidate:_xkawa
Based on the evaluation of results it was felt job is not yet fit-for-purpose with respect to aerosols/ AOD and some tunings related to EPS values and SO2 scavenging should be tried.
Status to be re-assessed at next CMG.
CJ suggested enchancing the documentation to list the major science/ technical settings and possibility of comparing these with the previous (VN7.3) release jobs.
Bug Reporting
Strategy document on UKCA bugs management is available here.
Process to be followed involves user emailing ukca_bugs@metoffice.gov.uk with details; one of the recipients to populate the table and CMG to review status at each meeting.
Additional invitees
While there is a need to expand the developer-representation at the CMG forum, it was decided -in the first instance- to invite persons that are or can be actively involved in contributing to the UKCA codebase. This process will start with Reading, Mark Richardson at Leeds and then extended to others e.g. Imperial, Uni Edinburgh, CSIRO.
The possibility of keeping the core CMG limited but seeking user/ developer inputs before each meeting was also considered.
UM9.2 update
Code freeze deadline is 3rd October.
UKCA related Tickets lodged/ Code Review so far:
* 6114 Improved aerosol scavenging processes in GLOMAP-Mode * 6376 Fix mismatch in levels for non-transported UKCA prognostics * 6443 Fast-JX fails if .NOT. L_PC2 and .NOT. l_3d_cca
UKCA related Tickets expected to be lodged by deadline :
* 5503 Pipework to deliver bVOC emissions from JULES to UKCA * 5632 Add convective scavenging to 6A convection scheme * 5755 UKCA aerosol sedimentation speed limit * 5900 Calculate section 34 diagnostics on pressure levels * 5980 Clear-sky relative humidity in AOD diagnostics for GLOMAP-mode * 6009 Tuning of biomass burning emissions and secondary organic aerosol production * 6208 Provide backward-Euler solver for offline oxidants chemistry * 6238 Enable Age-of-air tracer with Offline Chemistry. * 6330 Rationalise the application of Priestley conservation to CLASSIC and UKCA tracers * 6429 Bug fix for OC emissions from biomass burning
Date of next meeting
NS to send Doodle poll for alikely date - late November/ early December
