Implement POLARCAP & NATL grids + L58 inic for all other SE-VR grids

[adamrher]

Fixes #979
Fixes #1330

This PR also adds L58 ncdata files for the three other SE var-res grids (ARCTIC, ARCTICGRIS, CONUS).

[cacraigucar]

I know you haven't asked for review yet, but in case we decide to try to commit this quickly - I looked in here. You probably would have remembered these changes without me saying anything

[cacraigucar]

These files need to be moved into the /glade/p/cesmdata/inputdata section of derecho and make sure they have the "mandatory metadata" https://www2.cesm.ucar.edu/working_groups/Atmosphere/amwg_datasets.html

[adamrher]

@rcjwills please check the inputdata sets I've set up for the NATL grid (click "Files changed" tab). In particular, the ncdata file for L32. Note I generated an L58 ncdata file, interpolated from ERA5.

[rcjwills]

@adamrher With that ncdata file (cami-mam4_0000-01-01_ne0np4.NATL.ne30x8_L32_c201109.nc), an extensive spinup with substepping was needed to get the configuration running stably. The other file in the same directory (NATL_F2000_initial.cam.i.0001-01-06-00000.nc) is from after that spinup, but it has some unusual anomalies in the stratosphere. Would it make sense to output a new cam.i file from later in one of the existing simulations? I'm not sure what's done for the other grids.

[adamrher]

@rcjwills I can generate an L32 file from ERA5 using betacast. The ERA5 top is ~80 km, so it should have reasonable temperatures all the way to the model top (~40 km).

[rcjwills]

@adamrher I think that's a good idea considering that the cami-mam4_0000-01-01_ne0np4.NATL.ne30x8_L32_c201109.nc initial condition took quite some effort to get running.

[adamrher]

@cacraigucar I needed to update the externals ccs_config_cesm1.0.48 and cmeps1.1.2, which has the new NATL grid support. However, these new externals are breaking CLM at the compile stage:

Building lnd with output to /glade/derecho/scratch/aherring/cam-polarcap_FHISTC_LTso_ne0ARCTICne30x4_ne0ARCTICne30x4_mt12_2304pes_250620_test/bld/lnd.bldlog.250620-163528
/glade/campaign/cgd/amp/aherring/src/cam-polarcap/components/clm/src/biogeochem/VOCEmissionMod.F90(613): error #6460: This is not a component name that is defined in the encompassing structure. [COEFF]

Is this something to bring up with Erik at the CSEG meeting, or should we include him in this thread?