Sync WW3 develop to dev/ufs-weather-model

[mingchen-NOAA]

Pull Request Summary

Sync develop -> dev/ufs-weather-model

Description

Routine sync of develop to dev/ufs-weather-model.

Possible result changes in ww3_tp2.1 from PR#1546

ww3_tp2.1/./work_PR2_UNO 
ww3_tp2.1/./work_PR1_MPI 
ww3_tp2.1/./work_PR3_UNO_MPI  
ww3_tp2.1/./work_PR2_UQ 
ww3_tp2.1/./work_PR2_UNO_MPI 
ww3_tp2.1/./work_PR3_UNO  
ww3_tp2.1/./work_PR3_UQ_MPI 
ww3_tp2.1/./work_PR1 
ww3_tp2.1/./work_PR3_UQ 
ww3_tp2.1/./work_PR2_UQ_MPI

Issue(s) addressed

Commit Message

Sync develop as of 2-12-2026 to dev/ufs-weather-model

Check list

• Branch is up to date with the authoritative repository (NOAA-EMC) develop branch.
• Checked the checklist for a developer submitting to develop.
• If a version number update is required, checked the updating version number checklist.
• If a new feature was added, a regression test for testing the new feature is added.

Testing

• How were these changes tested? Matrix compared to dev/ufs-weather-model
• Are the changes covered by regression tests? (If not, why? Do new tests need to be added?) Yes
• Have the matrix regression tests been run (if yes, please note HPC and compiler)? Ursa Intel
• Please indicate the expected changes in the regression test output, (Note the list of known non-identical tests.)
• Please provide the summary output of matrix.comp (matrix.Diff.txt, matrixCompFull.txt and matrixCompSummary.txt):

Ursa Intel: compared to NOAA-EMC/WW3/dev/ufs-weather-model
Known non-identical cases:

**********************************************************************
********************* non-identical cases ****************************
**********************************************************************
mww3_test_03/./work_PR3_UNO_MPI_d2                     (15 files differ)
mww3_test_03/./work_PR3_UQ_MPI_e                     (1 files differ)
mww3_test_03/./work_PR3_UNO_MPI_e                     (1 files differ)
mww3_test_03/./work_PR1_MPI_d2                     (18 files differ)
mww3_test_03/./work_PR3_UQ_MPI_e_c                     (1 files differ)
mww3_test_03/./work_PR2_UNO_MPI_d2                     (17 files differ)
mww3_test_03/./work_PR2_UQ_MPI_d2                     (15 files differ)
mww3_test_03/./work_PR3_UQ_MPI_d2_c                     (16 files differ)
mww3_test_03/./work_PR2_UNO_MPI_e                     (1 files differ)
mww3_test_03/./work_PR3_UQ_MPI_d2                     (16 files differ)
mww3_test_03/./work_PR1_MPI_e                     (1 files differ)
mww3_test_03/./work_PR3_UNO_MPI_d2_c                     (15 files differ)
mww3_test_03/./work_PR3_UNO_MPI_e_c                     (1 files differ)
mww3_test_09/./work_MPI_ASCII                     (0 files differ)
ww3_tp2.10/./work_MPI_OMPH                     (6 files differ)
ww3_tp2.6/./work_ST4_ASCII                     (0 files differ)
ww3_ufs1.3/./work_a                     (3 files differ)

Changes due to merge PR#1546

ww3_tp2.1/./work_PR2_UNO                     (2 files differ)
ww3_tp2.1/./work_PR1_MPI                     (2 files differ)
ww3_tp2.1/./work_PR3_UNO_MPI                     (2 files differ)
ww3_tp2.1/./work_PR2_UQ                     (2 files differ)
ww3_tp2.1/./work_PR2_UNO_MPI                     (2 files differ)
ww3_tp2.1/./work_PR3_UNO                     (2 files differ)
ww3_tp2.1/./work_PR3_UQ_MPI                     (2 files differ)
ww3_tp2.1/./work_PR1                     (2 files differ)
ww3_tp2.1/./work_PR3_UQ                     (2 files differ)
ww3_tp2.1/./work_PR2_UQ_MPI                     (2 files differ)

other non-identical:
mww3_test_01/./work_PR2_UNO (0 files differ) core.ls.u09c25.3304597 in comp directory only

matrixCompFull.txt
matrixCompSummary.txt
matrixDiff.txt

[gspetro-NOAA]

Testing for ufs-community/ufs-weather-model#3052 has completed successfully. This PR can be merged.

[gspetro-NOAA]

@JessicaMeixner-NOAA Could you merge this PR?

[JessicaMeixner-NOAA]

@JessicaMeixner-NOAA Could you merge this PR?

done @gspetro-NOAA