CSIM5 can be run uncoupled using atmospheric data from 1997, available from
http://www.cesm.ucar.edu/models/ice_csim5/distribution.
These data files are on the low resolution grid and were created for testing
the ice model. They will not produce the best sea ice simulation. Module
ice_flux_in.F can be modified to change the forcing data. Namelist
options for using the atmospheric forcing data are shown in Table
9. atm_data_dir is the root directory where
the forcing resides. fyear_init and year_init should be set
to 1997 and ycycle should be set to 1 for the forcing provided.
ocn_data_dir should not be set since no ocean forcing is provided.
Subroutines in ice_flux_in.F are available for reading in ocean sea
surface temperature and salinity data and may be used for initializing and/or
restoring the mixed layer properties; these subroutines currently are commented
out in ice_flux_in.F. A sample namelist using these options is shown
in section 4.8.4. A brief discussion of the atmospheric forcing
files is given in section 5.1 as well as changes that should be
made to ice.F to use this forcing.
| Varible Name | Type | Default Value | Description |
atm_data_dir |
Path | Directory for atmospheric forcing data | |
| fyear_init | Integer | First year of atmospheric forcing data | |
| ocn_data_dir | Path | Directory for oceanic forcing data | |
| ycycle | Integer | Number of years in forcing data cycle | |
| year_init | Integer | 1 | Initial year, if not using restart file |