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Determination of Radar Parameters for Measuring Rainfall Based on Raindrop Size Distribution Data

ZHAO Zhen wei 1,2 ,WU Zhen sen 2 ,SHEN Guang de 1(1 Qingdao Branch of China Research Institute of Radiowave Propagation,Qingdao 266071,China; 2 Physics Department of Xidian University,Xi′an 710071,China)  
Based on raindrop size distribution (DSD) data measured in Qingdao,Guangzhou and Xinxiang,the radar reflectivity factor Z for spherical raindrops,the radar reflectivity factor Z H and diferential reflectivity Z DR for oblate ellipsoid raindrops are calculated.The reflectivity rainfall relation (Z R relation) for conventional meteorological radar and reflectivity,differential reflectivity rainfall relation for multiparameter radar (Z H,Z DR R relation) are given by regression,and the performance difference of two kinds of radar for measuring rainfall and difference for measuring rainfall in different regions are also discussed in the paper.
【Fund】: 电科院预研基金和国防预研基金
【CateGory Index】: TN959.4
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