Coupled model configurations (GEOS MOM6)

Following configurations are available when you set up an experiment.

Configuration number (name)	Atmosphere (nx $\times$ ny)	Atm (IM $\times$ JM)	Ocean nx $\times$ ny (vertical resolution)	Ocn (IM $\times$ JM)
1 (low)	C12 (1 x 6)	12 x 72	72 x 36 (50)	3 x 2
2 (medium)	C90 (5 x 36)	90 x 540	540 x 458 (50)	90 x 2
3 (high)	C180 (30 x 36)	180 x 1080	1440 x 1080 (75)	36 x 30

Sample restarts:

For all the ⬆️ configurations, restarts can be found at: /discover/nobackup/sakella/restarts/GEOS_AOGCM-Nov2023:

├── test_high
├── test_low
└── test_mid

These contain restarts for the atmosphere, sea ice and ocean.

Note (1):

• Atmospheric vertical resolution has to be chosen when setting up your experiment, default is 72.
• Ocean vertical resolution defaults are listed ⬆️. Though they cannot be chosen while setting up experiment, they can be changed easily after the experiment has been set up.
• Sea ice runs on the same tripole grid as the ocean model.

Note (2):

If the intention is to initialize ocean from climatology files (e.g., using those in /discover/nobackup/projects/gmao/bcs_shared/make_bcs_inputs) then for the first segment, in input.nml set:

input_filename = 'n'

and for subsequent segments (i.e. > 1) set:

input_filename = 'r'