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WACCM4 Code Release

The WACCM development team is pleased to announce the public release of version 4 of the Whole Atmosphere Community Climate Model (WACCM4). WACCM4 is a capability of the Community Atmosphere Model (CAM), which is a component of the Community Earth System Model, version 1.0 (CESM 1.0).

To run WACCM4, users should download the CESM 1.0 source code by going to the CESM 1.0 release page and clicking on "registration" under the Acquiring the Code section. Once you have agreed to the terms of use, you will be sent an email containing the location of the Subversion repository along with a user name and password. The username/password can be used with Subversion client software, such as the command-line tool svn, to download the code. Detailed instructions for downloading the code are available in the CESM1.0 User's Guide.

WACCM4 is built by selecting an appropriate WACCM component set and building the CESM as described in the User's Guide. Scripts included with the source code will automatically download the input data sets needed to run the model for the component set and grid selected by the user. The CAM documentation is being updated to include sections for WACCM in both the user guides and scientific description.
 
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