A two-dimensional coupled biosphere-atmosphere model and its application

A 2-D zonally averaged, time dependent climate model is developed to study the biosphere-atmosphere interaction. A numerical scheme is specifically designed for the model to ensure the conservation of mass, momentum, energy, and water vapor. A simple parameterization of vegetation-soil layers is incorporated in this 2-D model. Us-ing this coupled model, we study the biosphere and atmosphere interaction. Some preliminary results concerning the African drought with annual mean conditions are presented.