CESM3.0a DGLC Namelist Definitions
Model Version: 3.0a
Change CESM Version
Component Tag:
cdeps1.0.96
HTML Created:
2026-07-02
| Variable | Namelist Group | Category | Entry Type | Valid Values | Possible Default Values | Description and out-of-the-box Default |
|---|---|---|---|---|---|---|
| datamode | dglc_nml | dglc | char | ['noevolve'] | noevolve |
Copies all fields directly from the input data streams Any required
fields not found on an input stream will be set to zero.
|
| restfilm | dglc_nml | dglc | char | ['any char'] | null |
main restart file name for dglc model
|
| skip_restart_read | dglc_nml | dglc | logical | ['.true.', '.false.'] | $DGLC_SKIP_RESTART_READ |
If set to true, than dglc restarts will not be read on a continuation run.
This capability is used, for example, in CTSM spinup runs.
|
| model_datafiles_list | dglc_nml | streams | char | ['any char'] | is $DIN_LOC_ROOT/glc/cism/Antarctica/ISMIP6_Antarctica_8km.init.c210908.nc:$DIN_LOC_ROOT/glc/cism/Greenland/greenland_4km_epsg3413_c251001.nc for: {'glc_grid': 'ais8:gris4'} is $DIN_LOC_ROOT/glc/cism/Greenland/greenland_4km_epsg3413_c251001.nc for: {'glc_grid': 'gris4'} is $DIN_LOC_ROOT/glc/cism/Antarctica/ISMIP6_Antarctica_8km.init.c210908.nc for: {'glc_grid': 'ais8'} |
colon deliminted string of inputdata files
|
| model_internal_gridsize | dglc_nml | streams | real(20) | ['any real(20)'] | is 8000,4000 for: {'glc_grid': 'ais8:gris4'} is 4000 for: {'glc_grid': 'gris4'} is 8000 for: {'glc_grid': 'ais8'} |
model internal grid size(s) in m which is used to compute the internal model
model area in radians**2 using the formula (model_internal_gridsize/shr_const_rearth)**2 -
for more than one ice sheet this will contain an array of model_internal_gridsize values.
|
| model_meshfiles_list | dglc_nml | streams | char | ['any char'] | $GLC_DOMAIN_MESH |
colon deliminted string of file(s) specifying model mesh
for more than one ice sheets this will contain an array of mesh file names
|
| nx_global | dglc_nml | streams | integer(20) | ['any integer(20)'] | is 704,421 for: {'glc_grid': 'ais8:gris4'} is 704 for: {'glc_grid': 'ais8'} is 421 for: {'glc_grid': 'gris4'} is 76 for: {'glc_grid': 'gris20'} |
global size(s) of nx where for more than one ice sheet this
will contain an array of nx values
|
| ny_global | dglc_nml | streams | integer(20) | ['any integer(20)'] | is 576,721 for: {'glc_grid': 'ais8:gris4'} is 576 for: {'glc_grid': 'ais8'} is 721 for: {'glc_grid': 'gris4'} is 141 for: {'glc_grid': 'gris20'} |
global size(s) of ny where for more than one ice sheet this
will contain an array of ny values
|
| streamslist | streams_file | streams | char(100) | ['any char'] | none |
List of streams used for each supported dglc_mode |
| Variable | Namelist Group | Category | Entry Type | Valid Values | Possible Default Values | Description and out-of-the-box Default |