不同对流参数化方案对暴雨过程影响的模拟试验  

Simulation Test on the Effects of Various Convection Parameterization Schemes on the Heavy Rain Process

作　　者：杨群娜 陈永 邱克伟 卢春萍 丁丽佳 

机构地区：[1]广东省潮州市气象局,广东潮州521000

出　　处：《安徽农业科学》2010年第28期15722-15723,15727,共3页Journal of Anhui Agricultural Sciences

摘　　要：利用WRF中尺度数值预报模式,选用2种对流参数化方案Kain-Fritsch(new Eta)和Betts-Miller-Janjic,分别对2008年8月24～26日上海地区的暴雨过程进行了模拟试验。结果表明,应用WRFV3.1中尺度模式模拟暴雨过程采用网格嵌套技术时,细网格对降水的中心极值模拟效果更好。Kain-Frisch方案可能针对雨区分布效果较好,但对雨区落区存在偏差。Betts-Miller-Janjic方案对降水落区和分布都有较好的体现。Using WRF meso-scale numerical prediction model,two convection parameterization schemes Kain-Fritsch（new Eta） and Betts-Miller-Janjic scheme were selected to simulate the heavy rain process of Shanghai on Aug 24th-26th of 2008.The results showed that the simulation effects of central extremum of precipitation by fine mesh were better when grid nesting technique was used in the simulation of rainstorm process using WRFV3.1 meso-scale model.Kain-Frisch scheme was better for the distribution effect of rain area,it had departure of rain falling region.Betts-Miller-Janjic scheme showed better effects on the falling region and distribution of precipitation.

关 键 词：对流参数化 暴雨预报 

分 类 号：P458.121.1[天文地球—大气科学及气象学]