气象科学2011，Vol.31Issue(z1)：110-119,10.
江苏盛夏两次局地特大暴雨过程对比分析
A contrastive analysis on two torrential rains of mid-summer in Jiangsu
摘要
Abstract
In this paper a contrastive analysis on two torrential rains (August 2, 2009 and July 13, 2011) of mid-summer in Jiangsu is presented with Micaps products, automatic station data, Changzhou Doppler radar observations and NCEP analysis field. Research includes precipitation, circulation background, characteristics of radar observations, dynamic and thermal conditions, etc. Result shows that simultaneous reinforement of subtropical high and continental high in a saddle pattern leads to concentra-tive precipitation and heavy convective motions, rain center locates in the south of low shear, in the north of surface convergence, and near the peak of water vapor transportation over east China. Weak subtropical high contributes to sustaining water vapor transport for easterly wind of tropical system, to weak convection and longer duration of the convection, with the cooperation of meso-scale trigger system at low levels, it makes local rainfall more powerful and makes precipitation center closer to the starting point of water vapor transportation over east China.关键词
特大暴雨/鞍型场/水汽输送Key words
Heavy rain/ Saddle pattern/ Water vapor transport分类
天文与地球科学引用本文复制引用
韩珏靖,陈飞,沈建..江苏盛夏两次局地特大暴雨过程对比分析[J].气象科学,2011,31(z1):110-119,10.基金项目
江苏省青年气象科研基金项目(Q201204) （Q201204）
苏州市气象局自立科研课题项目(sz201102) （sz201102）
