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《Meteorological Monthly》 2009-08
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Applying Doppler Radar Echo Parameter to Estimate Surface Rainfall in Changsha

Wang Zhiping1 Zhang Zhongbo1 Tang Lin1 Xiao Bo2 Xia Zhenglong3 Ding Yueqiang1(1.Hunan Provincial Weather Modification Office,Changsha 410007;2.Changsha Meteorological Office;3.Hunan Provincial Meteorological Observatory)  
The related equations and characteristic equation were established on the basis of Changsha Doppler radar echo and surface rainfall parameter.Surface rainfall data of 27 summer cumulus were calculated to test the established relationships,then some estimation equations about single factor or multiple factors were gained.The results show that the most rain intensity is correlated well with echo height in the range of 50~100 kilometers,in multiple factors correlated equations,the surface rainfall is proportional to the horizontal scale and echo height,and is inversely proportional to the echo moving speed.
【Fund】: 湖南省气象局重点科研课题《湖南省人工影响天气三级作业指挥系统》(200622)资助
【CateGory Index】: P412.25;P426.613
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