CCPP Framework Meeting Minutes 2023 08 21

Agenda

• GitHub issues/PRs
• New items
• Updates
• Other business
  • notes

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Attendees: Mike Kavulich, Dustin Swales, Dom Heinzeller, Matt Dawson, Courtney Peverly, Ligia Bernardet, Jesse Nusbaumer

GitHub issues/PRs

CCPP Framework

• No open PRs
• No new Issues

Standard names

• Issue 39: gravity and the "coordinates" section
  • PR now open: https://github.com/ESCOMP/CCPPStandardNames/pull/45
• Issue 42: Want Github Action to ensure standard names are following character rules
  • No movement on this yet, but Mike K will work on this.
• PR 43: Fix typo in standard names
  • Merged, Mike K will work on getting correction into ccpp-physics and elsewhere
• PR 44: Adding atmospheric composition variables for JCSDA needs
  • Related to Issue 46: What to do about model-specific variable names?

New items for discussion

Debrief from CCPP visioning workshop

• Dedicated committee for discussion of Standard Names issues and PRs?
• capgen/prebuild unification is very anticipated: once complete, may see a lot more movement on other dycores adopting the framework
• Vertical coordinate transformation in the framework is highly desired
• Other framework transformations, it's a little unclear what the path forward is.
• Other topics?

Updates from last time

Previous notes

Other business

Notes

Attendees: Mike Kavulich, Dustin Swales, Dom Heinzeller, Matt Dawson, Courtney Peverly, Ligia Bernardet, Jesse Nusbaumer

CCPP Framework: No new issues, no new movement on issues last week, due to ccpp visioning workshop

Standard names repository: standard_names relating to ozone should be explicit (e.g ozone not o3).

Ligia, What are the CF conventions wrt this? Should use ozone? Seems there are more references to “ozone” than “o3” in CF conventions (http://cfconventions.org/Data/cf-standard-names/current/build/cf-standard-name-table.html)

Matt Dawson, “Is this just for ozone? Or all chemical compounds?” Challenges with standard names for group organic species. There may be different ways to write the same thing (e.g different ordering). Should check with the chemists.

Issue #46 (Model-specific variable names.) Dom, we should discuss this here or it will not get resolved for a year… In this context model refers to the chemistry/aerosol model, not the host model. Cheryl, there are also many interstitials that hosts create for their coupling needs. Ligia, what about a subdirectory/section for model specific interstitials? Would this work? Matt, Modal vs. section models. Modal have names for bins, whereas sectional models are indexed. Cheryl, There are UFS variables currently in the standard name dictionary. These should be teased out with anything we decide to do. Mike, option #3 is clunky. Maybe we should not consider this option going forward. Dustin and Cheryl like option #1. Matt, what about if classes need an exit strategy?

Should we have a separate meeting for standard_names? Or go to every week for this meeting?

Cheryl, MOA is being reworked. Capgen unification will be a part of the language.

Some more conversation about abstract base class.