||National Center for Atmospheric Research, Boulder, CO. Climate and Global Dynamics Div.;National Science Foundation, Arlington, VA.;Department of Energy, Washington, DC.;Environmental Protection Agency, Washington, DC.
The purpose of this report is to document the details of the governing equations and physical parameterizations of the sea ice model component in the first version of the NCAR Climate System Model (CSM). The sea ice component of the CSM is driven by the heat, momentum and freshwater fluxes provided at the upper and lower ice boundaries by the atmospheric and oceanic model components, respectively. In return, the sea ice model provides the appropriate boundary fluxes required by the atmosphere and ocean in the presence of ice. The CSM Flux Coupler (Bryan et al., 1996-PB97-129969) facilitates and manages the exchange of fluxes between the CSM component models and exercises the required care to assure conservation of heat, momentum, and freshwater within the model climate system.