Description of A Nine-Level Grid Point Atmospheric General Circulation Model

A brief description of a nine-level grid-point global atmospheric general circulation model is presented with the emphasis on the physics parameterizations. This model was developed by the modeling group from Institute of At-mospheric Physics as one task of the CO2-Climate cooperation project between Chinese Academy of Sciences and United States Department of Energy. The task was initiated by Qing-Cun Zeng (IAP) and Robert D. Cess (SUNY). The operational design, computer coding and climate simulation tuning of the model were mainly carried out by Xue-Hong Zhang (for dynamics) and the author (for physics) in SUNY at Stony Brook. The final version was frozen in September 1990. Preliminary diagnose showed that the model reproduces principal features of the observed climatology.