A January Simulation Experiment With the Two-Layer Version of the Ncar Global Circulation Model

Results of a January simulation experiment with the two-layer version of the NCAR global circulation model are discussed. The model includes a hydrological cycle, horizontal and vertical turbulent transports of momentum, heat, and water vapor from the lower boundary and within the atmosphere, and calculations of solar and terrestrialradiation. Although the water vapor field interacts with the radiation calculations, the cloud distribution is a function of latitude and season. I n this version of the model, the earth's orography is omitted as well as an explicit calculation of the surface temperature.