单多普勒雷达SVVP风场反演及应用  

Retrieval and application of SVVP method with single Doppler radar

作　　者：夏网萍[1] 魏鸣[1] 李南[1] 

机构地区：[1]南京信息工程大学气象灾害省部共建教育部重点实验室,南京210044

出　　处：《气象科学》2010年第4期503-509,共7页Journal of the Meteorological Sciences

基　　金：公益性行业(气象)科研专项(GYHY(QX)2007-6-2);863项目(2007AA061901);2009年江苏省自然科学院基金(BK2009415);高校博士点专项科研基金

摘　　要：针对单多普勒雷达风场反演VVP方法中存在的线性方程组的病态矩阵问题,使用改进的SVVP方法,通过多种模拟风场信号对其进行检验和分析,并给出两个反演实例:2009年江苏雨雪天气和安徽冰雹个例。模拟和实例表明SVVP方法反演的风场结构合理,对于反演强对流天气比较有效。Due to the ill-conditioned matrix problem arising from the coefficients of equations not being resolved,the VVP（velocity volume processing） wind retrieval method has not been applied adequately and effectively in operation.In this paper,a few simulated wind field signals with the SVVP（the step-VVP） method are tested.Two experiments are used to verify the retrieval result,the whole structures of wind field are correct.The comparison of simulated data and real cases showed that SVVP method has the higher precision;it is a useful means for retrieval wind of severe weather.

关 键 词：风场反演 SVVP 模拟 检验 

分 类 号：P252.1[天文地球—测绘科学与技术]