ON THE VERTICAL DISCRETIZATION OF ATMOSPHERIC MODELS (Ⅰ)─EXISTING PROBLEMS,DATA PROCESSING AND CHOICE OF VERTICAL COORDINATE AND BASIS FUNCTIONS

Discussion are made on the vertical discretization of current atmospheric models. It is pointed out that there exist problems in the integration of the hydrostatic equation and the computation of vertical advection, vertical diffusion and so on. Then some possilbe ways for solving or alleviating them are sugested. Finally, the choice of vertical coordinate and basis functions is discussed.