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Move our testing from POP masks to MOM masks (mt233) #2540
In CESM2.0/CESM2.1/CESM2.2 series POP was the default ocean model. In CESM3, POP is going to be removed and MOM will be the ocean model that's used. The masks used in our testing have been POP masks (gx1v7 and gx3v7 for example). But, as part of CESM going to use MOM, we need to update our testing (and list of scientifically supported compsets) to use MOM ocean masks rather than POP. MOM does NOT have a low resolution grid (and they are removing the t061 grid), so we will use t232 for ALL grids (now the updated t233 grid)
In yesterdays CSEG meeting we verified that this is important to do and we will do it CESM wide. So CESM and CAM will have to change their testing and science support as well.
This now definitely needs to be mt233. We now have the ability to run with mt233 grids in CTSM and it's now being used in coupled simulations. And the Ocean group is committed to using the new grid at this point.
Activity
[-]Move our testing from POP masks to MOM masks[/-][+]Move our testing from POP masks to MOM masks (mt232)[/+]ekluzek commentedon May 15, 2024
In yesterdays CSEG meeting we verified that this is important to do and we will do it CESM wide. So CESM and CAM will have to change their testing and science support as well.
ekluzek commentedon Jul 8, 2024
For the capability freeze we should at least have some tests with MOM masks.
19 remaining items
ekluzek commentedon May 1, 2026
This now definitely needs to be mt233. We now have the ability to run with mt233 grids in CTSM and it's now being used in coupled simulations. And the Ocean group is committed to using the new grid at this point.
slevis-lmwg commentedon Sep 22, 2026
From meeting with @ekluzek
Merge tag 'ctsm5.4.063' into mv_gx_tests_to_t233
Merge tag 'ctsm5.4.063' into buildnamelist_update
Merge tag 'ctsm5.4.063' into 1850_cmip7_cesm3_datm_chem_con
Merge tag 'ctsm5.4.063' into b4b-dev-merge-20261015