辐射参数化方案对气候模拟和回报的影响  

IMPACT OF RADIATION PARAMETERIZATION ON CLIMATE MODELING AND HINDCAST

作　　者：李清泉[1] 王兰宁[1] 徐影[1] 魏敏[2] 

机构地区：[1]国家气候中心中国气象局气候研究开放实验室,北京100081 [2]北京大学物理学院

出　　处：《应用气象学报》2005年第B03期12-21,共10页Journal of Applied Meteorological Science

基　　金：国家"九五"重中之重项目"短期气候预测系统的总装与业务化试验研究"课题 (96 90 8 0 6)之 96 90 8 0 6 3 3子专题;中国气象局国家气象中心自筹基金课题ZK2 0 0 2C 1 2共同资助。

摘　　要：研究两种不同辐射参数化方案 (Morcrette方案和Ritter方案 )对一个大气环流模式及其与一个海洋环流模式的耦合模式的模拟和回报效果的影响。大气模式的模拟结果表明 ,采用Morcrette方案模拟的降水较采用Ritter方案有明显改进。采用Morcrette辐射方案的大气模式对夏季 5 0 0hPa高度场的模拟比采用Ritter方案的大气模式有明显改进 ,但对冬季5 0 0hPa高度场的模拟没有改进。大气 海洋耦合模式的 2 0年夏季回报结果表明 :采用Morcrette方案回报的夏季降水在华北和江淮地区明显比采用Ritter辐射方案好 ;对于夏季温度 ,带有Morcrette方案的耦合模式的回报在江淮地区没有带有Ritter方案的耦合模式好 ,但在黄河以北和新疆等地区 ,前者明显好于后者。The impacts of two radiation parameterization schemes (Morcrette and Ritter scheme) on the simulations and hindcasts of an atmospheric circulation model and an atmospheric- oceanic coupled model are investigated. Results of atmospheric model show that global precipitation simulated by atmospheric model with Morcrette scheme is better than atmospheric model with Ritter scheme. The simulation of 500 hPa geo-potential height in atmospheric model with Morcrette scheme is better than Ritter scheme in summer,but there is no improvement in winter. 20-year hindcasting results of atmospheric-oceanic coupled model indicated that summer precipitation over North China, the Yangtze and the Huaihe River basinsis reproduced better by coupled model with Morcrette scheme than that with Ritter scheme. Although the hindcast of summer temperature over the Yangtze and the Huaihe River basin by coupled model with Morcrette scheme is not as good as with Ritter scheme,the hindcast of summer temperature over Xinjiang and the region to the north of the Yellow River by coupled model with Morcrette scheme is better thanthat with Ritter scheme.

关 键 词：辐射参数化方案 气候模拟 大气环流模式 海洋环流模式 太阳辐射 大气运动 

分 类 号：P468[天文地球—大气科学及气象学]