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《Chinese Journal of Radio Science》 2016-03
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Physical process observation and research of rainfall based on Wuhan MST radar

QING Haiyin;ZHAO Zhengyu;ZHU Yanxiang;ZHOU Chen;SU Qinglun;ZHANG Yuannong;School of Physics and Electronic Engineering,Leshan Normal University;School of Electronic Information,Wuhan University;Institute of Space Science,"National Central" University;  
Using the rainfall data observed by Wuhan mesosphere-stratosphere-troposphere(MST)radar and building a second-order Gaussian spectrum model,we obtained the spectral information of the atmosphere turbulence and rainfall based on the least squares fit.The echo energy and radial motion state of the atmosphere and precipitation particles can be extracted by the spectra of the atmosphere turbulence and rainfall,then the atmospheric 3D wind field can be calculated from five beams and the formation mechanism of rainfall is discussed.Meanwhile,assuming the raindrop size distribution follows the gamma distribution,the raindrop size distributions at different heights are inverted from the rainfall spectrum,and the microphysical process of rainfall in the troposphere is researched.
【Fund】: 国家自然科学基金(No.41204111 No.41327002);; 中央高校基本科研业务费专项资金(2014212020202)
【CateGory Index】: P412.25
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