Description of the NCAR community climate model (CCM2), June 1993. Technical note

The report presents the details of the governing equations, physical parameterizations, and numerical algorithms defining the version of the NCAR Community Climate Model designated CCM2. The material provides an overview of the major model components, and the way in which they interact as the numerical integration proceeds. Details on the coding implementation, along with in-depth information on running the CCMe code, given in a separate technical report entitled User's Guide to NCAR CCMe (Bath et. a., 1992). As before, it is the authors objective that the model provide NCAR and the university research community with a reliable, well documented atmospheric general circulation model. In contrast with earlier versions of the CCM, however, the CCM2 represents a wholly new state-of-the-art atmospheric general circulation model, both functionally and in terms of its implementation. As such, the version of the CCM represents a major break from the evolutionary nature of earlier releases, and should provide the research community with a significantly improved atmospheric modeling capability.