区域气候模式RegCM3在海河流域的应用  

Application of Regional Climate Model to Haihe River Basin

作　　者：吴迪[1] 裴源生[1] 

机构地区：[1]中国水利水电科学研究院水资源研究所,北京100038

出　　处：《水电能源科学》2010年第11期5-8,80,共5页Water Resources and Power

基　　金：国家自然科学基金资助项目(50721006)

摘　　要：利用区域气候模式RegCM3,模拟和对比分析了不同分辨率、不同积云对流参数化方案下海河流域1998年夏季气象要素场。结果表明采用20 km水平分辨率模拟的降水分布精度比50 km显著提高;Anthes-Kuo方案较Grell_FC80方案更好。20 km水平分辨率的Anthes-Kuo方案模拟的雨区分布、降雨强度和雨带走向与实况拟合较好;该组合方案下的温度场、站点插值结果分析表明,RegCM3对温度随地形的空间分布及其变化趋势刻画较好,该参数组合方案可为海河流域气候变化模拟提供参考。With the regional climate model（RegCM3）,different resolution（20/50 km） and cumulus convection parameterization schemes are used to test their capability in simulating precipitation and temperature fields of Haihe River Basin in summer,1998.The results demonstrate that simulations at 20 km resolution for precipitation distribution is better than that of 50 km and the cumulus parameterization scheme of Anthes-Kuo is better than Grell_FC80;specially,the scheme of Anthes-Kuo at 20 km resolution is closer to the observation in rainbelt distribution,intensity and trend.In this combination scheme,simulated temperature fields and station interpolation results show that spatial distribution and variation tend of temperature fields is closer to the observation,which can provide reference for simulation of climate change in Haihe river basin.

关 键 词：区域气候模式 积云对流参数化方案 Grell_FC80方案 Anthes-Kuo方案 

分 类 号：P435.2[天文地球—大气科学及气象学]