CSIM5 can be run uncoupled using atmospheric data from 1997, available from
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|
|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|