摘要
本文通过对5次700 hPa上出现在川东北阆中附近的涡旋,且有较大暴雨的个例进行合成分析,得到了一些综合特征。川东北涡是水平尺度为300—400 km的较深厚系统,主要在涡旋区东部有较强的上升运动,发展旺盛时为斜压性涡旋。
A composite analysis of five cases of 700 hPa vortex with heavy rain, located at Lang-Zhong in northeast of Sichuan, is studied. The results show the vortex is a deeper system and it's horizontal scale is about 300-400 km. A very strong ascending motion mainly located in eastern of the vortex. The well-developed vortex has baroclinic feature.
出处
《高原气象》
CSCD
北大核心
1991年第2期187-193,共7页
Plateau Meteorology
关键词
川东
北涡
大气
涡旋
The vortex over northeast Sichuan Basin
Composite analysis
San Xia district
