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CCPP Framework Meeting Minutes 2021 07 13

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Dom Heinzeller edited this page Jul 15, 2021 · 2 revisions

Agenda

  • Transition to capgen.py
  • Standardized way to read tabulated data in CCPP schemes?
  • Update on standard names

Transition to capgen.py

  • Status of capgen in MPAS:
    • September 30 - Dave wants to run CCPP physics running in MPAS, this used to be June and slipped
    • CCPP-compliant physics are B4B with existing physics
    • Dave has a branch of MPAS that implements the ccpp-framework and uses it to call at least one physics scheme
      • Simple suite, hardcoded to use CCPP (simple = several schemes and a subcycle, no fancy automation and conversations)
      • In the end, MPAS needs to be able to run both CCPP and non-CCPP physics
    • WRF will call CCPP-compliant physics directly w/o the framework
    • Need to ask Dave about missing capabilities of the framework for use in MPAS
    • Steve:
      • No requests from MMM on additional framework capabilities, but plenty of work to do for CESM
  • Cheryl built the musica box model a while back, which uses capgen
  • feature/capgen branch had major updates on March 18, smaller updates Apr 10 and May 21
    • Cheryl uses a branch in Steve's fork that was updated in April, too - thus, feature/capgen is up to date
  • Steve currently working on DDT type issue (inconsistency in how we describe DDTs in the metadata)
    • Next: actions (var_action class), which is required for Dom to work on unit conversions and for Steve to work on diagnostics; a lot of other development depends on the var_action capability, too
  • UFS:
    • Deliverable to transition to capgen at the end of last year ... slipped
    • Additional deliverables that build on capgen
  • Issues/Questions:
    • There is no management to coordinate the work between NOAA end NCAR
    • Is there a gap in funding and personal to get capgen working in the UFS with the required capabilities?
    • Dom can start working on the code from end of July (after CIRES ASA season)

Standardized way to read tabulated data in CCPP schemes?

  • Need to wait until Andrew shows up again

Dictionary of standard names

  • What is left to do in order to merge
  • Host model PRs:
  • Status of current PRs for ESCOMP:
    • Cheryl is ok with the current names in the PRs, will look at the rules soon
    • Grant: ready to go (caveat: this will need updates in the future, and it only covers 2/3 of the existing standard names)
  • Status of related PRs for UFS/SCM:
    • Little engagement from NOAA-EMC, therefore do not expect much pushback if NCAR requests more changes
    • Moorthi's comments: Exner function ("dimensionless" is redundant), x/y vs zonal/meridional wind
      • MPAS interpolates to zonal/meridional winds co-located with temperature etc and sends those to the physics, therefore ok
  • PRs: everyone who opened comments to check and resolve conversations, then approve if satisfied

CCPP Framework wiki

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