RegCM4.3气候模式引入新的海洋湍流参数化方案对中国夏季降水模拟的影响  

The impact of new ocean turbulence parameterization scheme introduced into RegCM4.3 climate model on the summer precipitation simulation in China

作　　者：卫翔谦 左洪超[1] 武利阳 陆莎[1] 赵舒曼 

机构地区：[1]兰州大学大气科学学院,半干旱气候变化教育部重点实验室,兰州730000 [2]湖北省电力勘测设计院,武汉430000

出　　处：《兰州大学学报（自然科学版）》2016年第5期644-651,共8页Journal of Lanzhou University(Natural Sciences)

基　　金：国家重点基础研究发展计划(973计划)项目(2012CB956200)

摘　　要：将一种用于全球气候模式的海洋湍流参数化方案引入到区域气候模式RegCM4.3中,分别使用两种方案进行气候模拟.分析对比了1996-2009年,两种方案对中国夏季风场、降水量等模拟结果的影响,并与欧洲中期数值预报中心的再分析资料、站点观测降水资料进行了对比分析.结果表明,新方案对东亚夏季西南季风和东南季风的模拟效果有所改善,并提高了中国夏季降水的模拟效果.A sea surface turbulent fluxes parameterization scheme was here introduced, which has been widely used in global climate models, into the regional climate model RegCM4.3. Climate simulation using RegCM4.3 was performed according to the original parameterization scheme and the new scheme for sea sur- face turbulent fluxes respectively. We compared the impact of these two parameterizations on the simulation of wind field and summer precipitation in China from 1996 to 2009 and the simulation results were compared fur- ther with European centre for medium-range weather forecasts reanalysis data as well as site-observed precipi- tation data. Conclusions have been drawn that the new scheme can improve the simulation of southeast and southwest summer monsoon of East Asia and the simulation effect of summer precipitation is enhanced.

关 键 词：气候模拟 海洋湍流参数化方案 区域气候模式 

分 类 号：P461.12[天文地球—大气科学及气象学]