新版使用svn下载。
软件要求：
UNIX style operating system such as CNL, AIX and Linux
csh, sh, and perl scripting languages
subversion client version 1.4.2 or greater
Fortran (2003 recommended, 90 required) and C compilers. pgi, intel, and xlf are recommended compilers.
MPI (although CESM does not absolutely require it for running on one processor)
Trilinos may be required for certain configurations
LAPACKm or a vendor supplied equivalent may also be required for some configurations.
CMake 2.8.6 or newer is required for configurations that include CISM.
The following table contains the version in use at the time of release. These versions are known to work at the time of the release for the specified hardware.
Table 1-1. Recommmended Software Package Versions by Machine
| Machine | Version Recommendations |
|---|---|
| Cray XT Series | pgf95 12.4.0 |
| IBM Power Series | xlf 12.1, xlC 10.1 |
| IBM Bluegene/P | xlf 12.01, xlC 10.01 |
| Linux Machine | ifort, icc (intel64) 12.1.4 |
svnusername：guestuser
password：friendly
> svn list https://svn-ccsm-models.cgd.ucar.edu/cesm1/release_tags
> svn list https://svn-ccsm-release.cgd.ucar.edu/model_versions
> svn co https://svn-ccsm-models.cgd.ucar.edu/cesm1/release_tags/cesm1_2_2 cesm1_2_2
原文：http://www.cnblogs.com/tlnshuju/p/7083312.html