区域气候模拟中多种对流参数化方案的比较研究  

Comparisons of Three Convection Parameterization Schemes in Regional Climate Simulations

作　　者：潘劲松 翟国庆[2] 高坤[2] 

机构地区：[1]浙江省气象台,杭州310017 [2]浙江大学地球科学系,杭州310008

出　　处：《大气科学》2002年第2期206-220,共15页Chinese Journal of Atmospheric Sciences

基　　金：国家"九五"重中之重科技项目"我国短期气候预测系统研究"96-908-02-04-3子专题

摘　　要：利用区域气候模式 ＲｅｇＣＭ２，选择 Ｂｅｔｔｓ—Ｍｉｌｌｅｒ、Ｋｕｏ—Ａｎｔｈｅｓ和 Ｇｒｅｌｌ３种积云对流参数化方案，进行了１９９１年和１９９４年 ５～７月２个个例的东亚季风区区域气候模拟试验，重点分析比较了３种参数化方案对降水总量分布、主要降水时段、雨带南北变动和基本气象要素场的模拟能力，并相对实测降水和基本要素的观测分析进行了统计检验。通过对比，发现Ｂｅｔｔｓ方案的模拟能力明显优于其他两种方案。By using Betts-Miller, Kuo-Anthes and Grell cumulus convection parameterization schemes in regional climate model(RegCM2), two regional climate simulation experiments of the sum- mers of 1991 and 1994 in East-Asia monsoon region are completed. We analyse and compare the simulation ability of three parameterization schemes to the distribution of the total rainfall from May to July, the major periods of heavy rainfall, variations of the rain-band location and the fundamental me- teorology element fields, and give out the results of statistical verifications between the simulations and the observations of the rainfall and the fundamental elements. The comparisons indicate that the simulation ability of Betts-Miller scheme is superior to the other two's.

关 键 词：东亚季风 降水 区域气候模式 大气温度 短期气候预测 积云 湿度场 

分 类 号：P463.1[天文地球—大气科学及气象学]