A Numerical Experiment with the Higher Resolution η-Coordinate Model
高分辨率η模式的数值试验

In order to research the important influence of the meso-scale topography for Chinese weather, an improvement has been made on the horizontal and vertical resolution of REM in order, and has simulated with the higher resolution model to the heavy rain cases of August 4th-5th,1993 and July 12th-13th,1994,using the routine data to get initial field and model orography by envelope method. Compared to the results of A, B, C model and observation, it is found that the precipitation forecast of B model has been improved a little than that of A model, and several pesudo-heavy rain centers have existed. After the horizontal and vertical resolution of REM have been changed, the precipitation and circulation pattern forecast of C model has been improved greatly than that of B model.