ctsm5.4.015

[CTSM Gatekeeper]

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Tag name: ctsm5.4.015
Originator(s): erik (Erik Kluzek,UCAR/TSS,303-497-1326)
Date: Tue Feb 3 12:29:48 AM MST 2026
One-line Summary: Update CISM to latest version with answer changes

Purpose and description of changes
----------------------------------

Update the CISM submodule to the latest tag used in cesm3_0_beta0b. This includes cismwrap_2_2_012 and cismwrap_2_2_013, both of which includes answer changes for CISM due to changes in namelist defaults. Add a new test for running both Antarctic and Greenland ice sheets. Add new compsets for CISM with Clm60.

Significant changes to scientifically-supported configurations
--------------------------------------------------------------

Does this tag change answers significantly for any of the following physics configurations?
(Details of any changes will be given in the "Answer changes" section below.)

[Put an [X] in the box for any configuration with significant answer changes.]

[ ] clm6_0

[ ] clm5_0

[ ] ctsm5_0-nwp

[ ] clm4_5


Bugs fixed
----------

List of CTSM issues fixed (include CTSM Issue # and description) [one per line]:

Fixes #3731 -- Add a CISM test for both AIS and GIS
Fixes #3732 -- Add CISM compsets for Clm60 physics

Notes of particular relevance for users
---------------------------------------

Notes of particular relevance for developers:
---------------------------------------------

Caveats for developers (e.g., code that is duplicated that requires double maintenance):

Changes to tests or testing:
Added a test that runs both the Antarctic Ice Sheet (AIS) and Greenland Ice Sheet (GIS)


Testing summary: regular
----------------

[PASS means all tests PASS; OK means tests PASS other than expected fails.]

regular tests (aux_clm: https://github.com/ESCOMP/CTSM/wiki/System-Testing-Guide#pre-merge-system-testing):

derecho ----- OK
izumi ------- OK

If the tag used for baseline comparisons was NOT the previous tag, note that here:


Answer changes
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Changes answers relative to baseline: Yes, for compsets using CISM

Summarize any changes to answers, i.e.,
- what code configurations: compsets with CISM active (end in G, Ga, or Gag)
- what platforms/compilers: all
- nature of change: new climate over glaciers

Other details
-------------

List any git submodules updated (cime, rtm, mosart, cism, fates, etc.): cism
cism to cismwrap_2_2_013

Pull Requests that document the changes (include PR ids):
(https://github.com/ESCOMP/ctsm/pull)

#3733 -- Update to cismwrap_2_2_013

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