update MOM6 to its main repo. 20260302 commit

[jiandewang]

Commit Queue Requirements:

• This PR addresses a relevant WM issue (if not, create an issue).
• All subcomponent pull requests (if any) have been reviewed by their code managers.
• Run the full Intel+GNU RT suite (compared to current baselines), preferably on Ursa (Derecho or Hercules are acceptable alternatives). Exceptions: documentation-only PRs, CI-only PRs, etc.
  • Commit log file w/full results from RT suite run (if applicable).
  • Verify that test_changes.list indicates which tests, if any, are changed by this PR. Commit test_changes.list, even if it is empty.
• Fill out all sections of this template.

---

Description:

MOM6 main repository was updated on 20260302 which contains GFDL's MOM6 license switch to Apache PR and minor modifications from EMC developers (Denise and Dusan) to address NCAR's comments. Need to pull back to dev/emc.

Commit Message:

  * MOM6 - update MOM6 to its main repository 20260302 updating

Priority:

• Critical Bugfix: Reason
• High: Reason
• Normal

Git Tracking

UFSWM:

• Closes update MOM6 to its main repository 20260302 commit #3115

Sub component Pull Requests:

• MOM6: update mom6 20260302 NOAA-EMC/MOM6#173

UFSWM Blocking Dependencies:

• Blocked by #
• None

Documentation:

• Documentation update required.
  • Relevant updates are included with this PR.
  • A WM issue has been opened to track the need for a documentation update; a person responsible for submitting the update has been assigned to the issue (link issue).
• Documentation update NOT required.
  • Explanation:

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Changes

Regression Test Changes (Please commit test_changes.list):

• PR Adds New Tests/Baselines.
• PR Updates/Changes Baselines.
• No Baseline Changes.

Input data Changes:

• None.
• PR adds input data.
• PR changes existing input data.

Library Changes/Upgrades:

• Required
  • Library names w/versions:
  • Git Stack Issue (JCSDA/spack-stack#)
• No Updates

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Testing Log:

• RDHPCS
  • Orion
  • Hercules
  • GaeaC6
  • Derecho
  • Ursa
• WCOSS2
  • Dogwood/Cactus
  • Acorn
• CI
• opnReqTest (complete task if unnecessary)

[jiandewang]

Herculus run log has been committed in this PR branch

[gspetro-NOAA]

@jiandewang Could you please sync with develop? We'd like to process your PR next.

[jiandewang]

I am syncing it but had "fatal: exec 'rev-list': cd to 'src/model/CMAQ' failed: No such file or directory"
re-do it now

[jiandewang]

@gspetro-NOAA 2nd attemp worked. Branched synced.

[jiandewang]

MOM6 merged, hash is 72563d6

[gspetro-NOAA]

Merged via #3123