【摘要】 应用新一代中尺度非静力模式WRF,采用单向两重嵌套方案,水平分辨率分别为27 km和9 km,对我国山西省2009年7月7日～8日一次典型强降雨天气过程进行不同微物理方案的模拟,得到了降水的数量特征、时空分布变化以及雨区范围和移动过程等方面的数据。对比分析了临县测站和方山测站的降雨模拟效果,结果表明:WSM6方案和M2M方案对降水过程的模拟较好,可作为降水模拟的备选微物理方案。更多还原

【Abstract】 A new generation of Nonhydrostatic Mesoscale Model-WRF is applied to simulate a typical heavy rainfall process in Shanxi province occurred on 7 ～ 8 July 2009 based on an one-way double nested scheme with two horizontal resolutions( 27 km,9km) respectively,and then the data such as the quantitive characteristics of rainfall,the change of temporal and spatial distributions,the rail areas,the moving process etc. are obtained. Compared with the results of the simulations made on Linxian and Fangshan stations,the results show that the schemes of WSM6 and M2M are better for simulating the rainfall process,thus can be taken as the alternative microphysical schemes for the rainfall simulations in the future.更多还原