THE NCAR CLIMATE SYSTEM MODEL GLOBAL OCEAN COMPONENT

This paper describes the global ocean component of the NCAR Climate Sy stem Model. New parameterizations of the effects of mesoscale eddies a nd of the upper-ocean boundary layer are included. Numerical improveme nts include a third-order upwind advection scheme and elimination of t he artificial North Pole island in the original MOM 1.1 code. Updated forcing fields are used to drive the ocean-alone solution, which is in tegrated long enough so that it is in equilibrium. The ocean transport s and potential temperature and salinity distributions are compared wi th observations. The solution sensitivity to the freshwater forcing di stribution is highlighted, and the sensitivity to resolution is also b riefly discussed.