江西科学2017，Vol.35Issue(2)：219-225,7.DOI:10.13990/j.issn1001-3679.2017.02.007
赣东北3类致洪暴雨的对比分析
Comparative Analysis on three Types ofFlood-Inducing Rainstorm in Northeast Jiangxi
摘要
Abstract
Three different types of flooding rainstorms were used to analyze the different characteristics and thresholds of typhoon rainstorm,Subtropical High edge rainstorm and Westerlies rainstorm in northeastern Jiangxi Province by using statistical contrast analysis method.Analysis shows:1)Three kinds of flooding rainstorms occurred in the high temperature and high humidity areas,the entrainment of the convective energy and the involvement of the mid-level "dry zone" were the important conditions to produce flooding rainstorm;2)Typhoon and Subtropical High edge rainstorm 0~3 km maximum vertical wind shear threshold is 11~15 m/s,while the threshold is 20 m/s in the Westerlies rainstorm;3)Westerly and typhoon rainstorm threshold of TBB is at-70 ℃ and the edge of the Subtropical High is-100 ℃;4)The thresholds of echo characteristic,ET,VIL of typhoon,westerlies,and Subtropical High edge type are 30~40 dBz,8~9 km,5 g·km-3/40~45 dBz,10 km,10~15 g·km-3/50 dBz,12 km,20 g·km-3;5)The low vorticity of the typhoon is the largest,and the convergence of water vapor and water vapor is also the strongest.关键词
3类致洪暴雨/对比/分析Key words
three types of flood-inducing rainstorm/comparative/analysis分类
天文与地球科学引用本文复制引用
蔡俊峰,陈鲍发,余欣..赣东北3类致洪暴雨的对比分析[J].江西科学,2017,35(2):219-225,7.基金项目
中国气象局预报员专项项目"'海葵'台风对江西影响的综合分析与研究"(编号:CMAYBY2013-037) （编号:CMAYBY2013-037）
景德镇市科技局2015年软科学项目"景德镇市致洪大暴雨的中尺度特征分析与研究"(编号:20151GLRK012). （编号:20151GLRK012）
