The Sensitivity of Precipitation Simulation to Difference Schemes of Water Vapor Equation in Atmosphere General Circulation Model
大气环流模式降水的模拟对水汽方程差分方案的敏感性试验

Three types of difference schemes of water vapor equation are introduced into IAP 9L AGCM which are Multidimensional Positive Definite Advection Transport Algorithm (MPDATA), Flux-Corrected Transport Algorithm (FCT) and Two-Step Shape-Preserving Advection Scheme (TSPAS). The simulated precipitations of 10 years corresponding with them are compared and analyzed. The result shows that the simulation of precipitation in AGCM is influenced by difference schemes of water vapor equation, and a scheme most suitable for the model is chosen from the above three schemes.