海洋预报2017，Vol.34Issue(4)：66-75,10.DOI:10.11737/j.issn.1003-0239.2017.04.008
一次副高控制下登陆的台风强降雨过程分析
Analyses of a strong precipitation event by the landing typhoon under the control of subtropical high
摘要
Abstract
Analyses results show that the strengthening and western extension of subtropical high and the eastern extension of low level North China high changed the vapor transportation and distribution of low level jets and vapor convergence of 1521 Typhoon "Dujuan".Strong vapor convergence and unstable energy accumulated in the eastern parts of Zhejiang and Fujian provinces with the strong ascending motion resulted by the coupling of high level divergence and low level convergence,which caused extraordinary torrential rain.After the withering away of "Dujuan",the low southeastern jet and east jet of its residual low pressure inverted trough top met at the eastern part of north Zhejiang province,which resulted in the continuity of vapor convergence and unstable energy and caused the continuity of extraordinary torrential rain.The meeting of the southeastern jet and east jet of peripheral "Dujuan" caused strong rainfall echo,whose structure is not so compact,but more convective and more likely to cause extraordinary strong precipitation,which should be paid attention to operational forecast in future.关键词
台风“杜鹃”/副高的加强西伸/低空急流和水汽辐合/降雨回波/大暴雨Key words
typhoon "Dujuan"/the strengthening and western moving of subtropical high/low level jet and vapor convergence/rain echo/extraordinary torrential rain分类
天文与地球科学引用本文复制引用
范爱芬,娄小芬,彭霞云..一次副高控制下登陆的台风强降雨过程分析[J].海洋预报,2017,34(4):66-75,10.基金项目
中国气象局预报员专项(CMAYBY2016-031、CMAYBY2017-031) （CMAYBY2016-031、CMAYBY2017-031）
浙江省气象局重点项目(2013ZD03). （2013ZD03）
