卫星云迹风资料对中尺度数值模式初始风场改进试验  

Modification of Initial Wind Field of a Mesoscale Numerical Model Based on the Data of Satellite Cloud Drift Wind

作　　者：黄彦彬[1] 雷恒池[2] 王振会[1] 郭学良[2] 杨有林[3] 

机构地区：[1]南京气象学院电子工程系,江苏南京210044 [2]中国科学院大气物理研究所,北京100029 [3]宁夏回族自治区气象局,宁夏银川750002

出　　处：《南京气象学院学报》2003年第5期668-676,共9页Journal of Nanjing Institute of Meteorology

基　　金：国家重点基础研究发展规划项目(J1998040907-02-02)

摘　　要：应用GMS-5静止气象卫星云图导出的风场产品—云迹风资料对中尺度η坐标有限区域数值模式(REM)的初始风场进行改进处理,模拟了2001年7月27—28日、28—29日的降水过程,并且与没有云迹风改进的数值模拟的降水结果进行对比分析。研究结果表明,卫星云图导出的云迹风场资料同化到数值模式,从而改善因测站稀疏造成的中小尺度系统漏报的不足,提高降水的预报精度。Using a wind productcloud drift wind derived from GMS5 geostationary satellit images to modity the initial wind field of a limitedarea numerical model in mesoscale η coordinate,the processes of the precipitation on 27-28 and 28-29 July 2001 were simulated and compared with that of a numerical simulation without modification.The result shows that there is a great improvement in the simulation for precipitation forecast through adjustment of the wind field by incorporating the cloud drift wind data into a numerical model because it remedied the fail to make forecast of meso and microscale weather systems which was caused by insufficient observation stations.

关 键 词：云迹风 Η模式 初始场 改进 卫星资料 中尺度数值模式 

分 类 号：P456.7[天文地球—大气科学及气象学]