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 productcloud drift wind derived from GMS5 geostationary satellit images to modity the initial wind field of a limitedarea 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 microscale weather systems which was caused by insufficient observation stations.
出处
《南京气象学院学报》
CSCD
北大核心
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)
