Difference between revisions of "Code management group minutes 12Feb2013"

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===Summary of action points arising in the meeting===
 
===Summary of action points arising in the meeting===
* MD to circulate details on 1st version of Evaluation suite
+
* MD to circulate details of the 1st version of Evaluation suite.
* GM to look into possible numerical errors in latest UKCA-Achem-MODE job
+
* GM to look into possible numerical errors in latest UKCA-Achem-MODE job.
* MD/CJ to port across a UM8.3 StratTrop+Achem+MODE job to MONSooN
+
* MD/CJ to port across a UM8.3 StratTrop+Achem+MODE job to MONSooN.
* LA/AA to suggest parameters for evaluating ENDGAME+UKCA configuration
+
* LA/AA to suggest parameters for evaluating the ENDGAME+UKCA configuration.
* NS to brief LA on status and required UKCA changes for Rose
+
* NS to brief LA on status and required UKCA changes for Rose.
* LA/GM to finalise vn8.x MODE configuration for upcoming UKCA tutorial
+
* LA/GM to finalise vn8.x MODE configuration for the upcoming UKCA tutorial.
* NS/LA/AA/Fiona to decide regarding updation of reaction rates for TropIsop,Strat schemes
+
* NS/LA/AA/Fiona to discuss regarding updation of reaction rates for TropIsop and Strat schemes.
* CMG to discuss with Project Board regarding follow-up meeting during March NCAS Meeting
+
* CMG to discuss with Project Board regarding follow-up meeting during March NCAS Meeting.
   
====Carried forward from previous meetings====
+
===Carried forward from previous meetings===
  +
* Dust: CJ has got 2-MODE dust scheme working. Stephanie evaluating results.
* GM to collate UKCA Science plans.
 
  +
* Nitrate : SteveR's job+branch working. CJ to check whether nitrate is turned ON.
* CJ to circulate provisional list of UKCA configurations at/post UM8.4.
 
* ZK to request Philip to circulate information/updates on JASMIN.
 
* MD to update PUMA 8.2 TropIsop+MODE job with latest changes.
 
   
====For beyond next meeting====
+
===Status of UKCA Release Job===
* New reaction rates to be tested in CheS and CheT.
+
* Updated Plan to be communicated to the Exec Board
  +
** Mid-March 2013 : UM8.3 StratTrop+Achem+MODE job setup and begin evaluation
* CJ to merge in-plume convective scavenging at 8.2, with help from ZK.
 
  +
** End-April : UM8.4 UKCA job setup (Dependancy on UM8.4 & GA4.0 release on PUMA) and begin evaluation
* CJ to lodge offline-oxidant code.
 
  +
** End-May : Agreed, evaluated, well documented Release Job
 
===Status of previous actions===
 
* NS to check admin on UKCA email lists. ''JISCmail &ndash; look like only Luke can do this.''
 
* NS to circulate list of ''Somewhen'' tickets on UKCA. ''Not copied across yet. This is a tedious process, and hard to keep up to date. We clearly need better collaboration tools. NS to look into this and report back.''
 
* GM to collate received UKCA Science plans into a document. ''Not collated yet. GM to do so before Christmas to inform JCWRP report (early Jan) and board meeting (Feb?)''
 
* CJ to circulate provisional list of UKCA configurations at/post UM8.4. ''Still to do.''
 
* ZK to request Philip to circulate information/updates on JASMIN. ''Still to do.''
 
* NS to circulate link for external release of Iris postprocessing package, with info in UKCA/Iris experience. ''Unfortunately the AQUM UKCA/Iris project has stalled due to funding issues. It is hoped to pick this up again, but at present it is poorly documented. Iris itself is publicly available, with a Google group for discussion.''
 
* CJ/MD to port a UM8.2 TropIsop+MODE job to PUMA including latest improvements/fixes. ''UKCA @ 8.2 (TropIsop+MODE) is on PUMA as of mid-Nov. Update to come this week, based on ''<code>amogh</code>''.''
 
   
 
===Other discussions===
 
===Other discussions===
  +
* MD briefed that a version of the Evaluation package, based on scripts contributed by Fiona/NIWA and Alex, is available on Postproc. Alex inquired whether a 'tile plot/ signal plot' type of a unified multi-model/ multi-parameter interpretation is possible. This will be taken up in the next phase.
* NS: Little progress on tracer rationalisation, but a better understanding of the current situation. We'll need a new tracer for sodium, and to clarify the sea salt tracer, before nitrate goes in.
 
  +
* NS briefed on status of vn8.2/3 AQUM job on MONSooN. LA asked whether this was easily configurable for users. NS replied this can be looked into if there was sufficient demand, but will require dedicated resource to maintain.
* NS: Fiona has tested new reaction rates in CheST @ 8.2, but what do we do about CheS and CheT (where the new rates have only been tested at 7.3)? Not enough resources to test these @ 8.2 at present. It would be good if rates were switchable, but not possible yet. ''Decision: Only update CheST for HadGEM3 ESM1, but prioritise testing CheS/CheT in the new year.''
 
  +
* It was agreed that instead of waiting for a 'Perfect' configuration, the UM8.4 Release job will include Aerosol washout improvements and tunings as available, with any biases and caveats documented for potential users/ developers.
* Steve is teting the nitrate code. GM to discuss this with him. However, this is no longer slated for 8.4, but will be in 9.0 (which was previously to be called 8.6).
 
  +
* It was also suggested that while the actual release job will be StratTrop+Achem+MODE, other versions should be faily easy to configure, mainly through UMUI setting changes.
* MD: Evaluation suite code is on <code>postproc03</code>, but still being tied together
 
  +
* CJ listed the UKCA changes targeted for GA6.0 configuration by the HadGEM3-ES Board. These include:
* MD: Currently checking tracer transport in UKCA with ENDGAME. Refer to experience with CLASSIC tracers.
 
  +
** ENDGAME
* CJ: Nucleation-scavenging timescale in 8.2 longer for SU/SS, but shorter for OC, compared to 7.3. Large-scale now looks good, but convective problematic. Will try to merge ZK's code in Jan. GM to look at tuning the existing scheme.
 
  +
** Evaluated ACTIVATE code
* CJ: Currently trying to get a 2-mode dust-only scheme working &ndash; problems in <code>UKCA_EMISSION_CTL</code> due to dependencies on chemistry.
 
  +
** RADAERv2
* CJ: offline oxidant configuration giving reasonable results, may lodge in January if time. Still not that fast (with N-R solver), so need to try different solvers (B-E, KPP).
 
  +
** Convective washout improvements from Oxford
  +
** CLASSIC Off
  +
** Use of Offline Oxidants
  +
* CJ shared initial results from an ENDGAME-UKCA StratTrop simulation and asked for suitable parameters to help evaluate the impacts.
  +
* LA briefed on the UKCA tutorial that will be conducted at Edinburgh in May. A survey at the ACITES meeting showed significant interest in this, at least from the UKCA-Chem perspective. The objective will be to enable new users/ developers to get some information on the basic usage as well as on carrying out minor changes to code related to emissions, diagnostics, reactions, etc.
   
===Outlook (NS)===
 
* ROSE progressing well.
 
* 8.4 frozen end Jan.
 
* 8.5 closed to bring in ROSE support (UMUI still supported too at this point).
 
* 9.0 first ROSE-only release, will also include science changes.
 
* ROSE will be used operationally by September.
 
* Richard Barnes has the ticket for UKCA ROSE support, but will need help from the rest of us to understand the current control logic.
 
   
 
=== Date of Next meeting===
 
=== Date of Next meeting===
  +
Possible follow-up meeting during the NCAS Climate-Chemistry Conference at Cambridge, 21 March.
Mid-January, NS to setup doodle poll (http://www.doodle.com/8aacaepan75mrugr).
 

Latest revision as of 19:06, 15 February 2013

UKCA Code Management Meeting, 12 February 2013 (tele-conference).

Participants:
Met Office: Nick Savage (NS), Colin Johnson (CJ), Mohit Dalvi (MD)
Cambridge: Alex Archibald (AA), Luke Abraham (LA)
Leeds: Graham Mann (GM)
Oxford: Zak Kipling (ZK)

Summary of action points arising in the meeting

  • MD to circulate details of the 1st version of Evaluation suite.
  • GM to look into possible numerical errors in latest UKCA-Achem-MODE job.
  • MD/CJ to port across a UM8.3 StratTrop+Achem+MODE job to MONSooN.
  • LA/AA to suggest parameters for evaluating the ENDGAME+UKCA configuration.
  • NS to brief LA on status and required UKCA changes for Rose.
  • LA/GM to finalise vn8.x MODE configuration for the upcoming UKCA tutorial.
  • NS/LA/AA/Fiona to discuss regarding updation of reaction rates for TropIsop and Strat schemes.
  • CMG to discuss with Project Board regarding follow-up meeting during March NCAS Meeting.

Carried forward from previous meetings

  • Dust: CJ has got 2-MODE dust scheme working. Stephanie evaluating results.
  • Nitrate : SteveR's job+branch working. CJ to check whether nitrate is turned ON.

Status of UKCA Release Job

  • Updated Plan to be communicated to the Exec Board
    • Mid-March 2013 : UM8.3 StratTrop+Achem+MODE job setup and begin evaluation
    • End-April : UM8.4 UKCA job setup (Dependancy on UM8.4 & GA4.0 release on PUMA) and begin evaluation
    • End-May : Agreed, evaluated, well documented Release Job

Other discussions

  • MD briefed that a version of the Evaluation package, based on scripts contributed by Fiona/NIWA and Alex, is available on Postproc. Alex inquired whether a 'tile plot/ signal plot' type of a unified multi-model/ multi-parameter interpretation is possible. This will be taken up in the next phase.
  • NS briefed on status of vn8.2/3 AQUM job on MONSooN. LA asked whether this was easily configurable for users. NS replied this can be looked into if there was sufficient demand, but will require dedicated resource to maintain.
  • It was agreed that instead of waiting for a 'Perfect' configuration, the UM8.4 Release job will include Aerosol washout improvements and tunings as available, with any biases and caveats documented for potential users/ developers.
  • It was also suggested that while the actual release job will be StratTrop+Achem+MODE, other versions should be faily easy to configure, mainly through UMUI setting changes.
  • CJ listed the UKCA changes targeted for GA6.0 configuration by the HadGEM3-ES Board. These include:
    • ENDGAME
    • Evaluated ACTIVATE code
    • RADAERv2
    • Convective washout improvements from Oxford
    • CLASSIC Off
    • Use of Offline Oxidants
  • CJ shared initial results from an ENDGAME-UKCA StratTrop simulation and asked for suitable parameters to help evaluate the impacts.
  • LA briefed on the UKCA tutorial that will be conducted at Edinburgh in May. A survey at the ACITES meeting showed significant interest in this, at least from the UKCA-Chem perspective. The objective will be to enable new users/ developers to get some information on the basic usage as well as on carrying out minor changes to code related to emissions, diagnostics, reactions, etc.


Date of Next meeting

Possible follow-up meeting during the NCAS Climate-Chemistry Conference at Cambridge, 21 March.