2.1 Downloading the Source Code and Input Data

The source code and input datasets are available on the World Wide Web under the URL:

http://www.cesm.ucar.edu/models/ccsm2.0

The source code comes in 3 different forms:

• ccsm2.0.tar.gz (4Mb) To unzip, gunzip ccsm2.0.tar.gz
• ccsm2.0.tar.Z (6Mb) To uncompress, uncompress ccsm2.0.tar.Z
• ccsm2.0.tar (17Mb)

To untar, tar -xvf ccsm2.0.tar. The input datasets for CCSM2.0 are available at the same URL.

• ccsm2.0.inputdata.RES_INDP.tar (55Mb)
• ccsm2.0.inputdata.T31_gx3.tar (196Mb)
• ccsm2.0.inputdata.T42_gx1v3.tar (789Mb)
• ccsm2.0.inputdata.T62_gx1v3.tar (1053Mb)

The resolution independent dataset, ccsm2.0.inputdata.RES_INDP.tar, is required for all configurations. If the coarse resolution grid is desired, ccsm2.0.inputdata.T31_gx3.tar should be downloaded;
ccsm2.0.inputdata.T42_gx1v3.tar should be downloaded for the fine resolution grid. If latm5 is used, ccsm2.0.inputdata.T62_gx1v3.tar is required in addition to ccsm2.0.inputdata.T42_gx1v3.tar and
ccsm2.0.inputdata.RES_INDP.tar.