气象与环境学报2012，Vol.28Issue(6)：38-43,6.
1991-2008年福建省强对流天气特征
Character of severe convection weather from 1991 to 2008 in Fujian province
摘要
Abstract
Based on the meteorological data from 1991 to 2008 in Fujian province, the temporal and spatial distribu- tions of severe convective weather and its formation reason as well as the dominantly synoptic patterns were ana- lyzed. The results indicate that the monthly change of severe convective weather presents a typical bimodal pattern with the higher one from March to June and the other from July to August. A majority of severe convective weath- ers occur during 14:00 to 20:00 and their life time are normally less than one day, and its influencing areas are of- ten within two weather stations. The spatial distributions of severe convective weather in different seasons are dif- ferent. The regional character of severe convective weather in spring is obvious. For example, the most severe con- vective weather events occur in the inland mountain, the middle and north areas rather than in the coastal area and in the south areas. In comparison, the distributions are even in other seasons. Severe convective weather often oc- curs under severe shear weather situation and mainly happens in spring, autumn and winter. The rates of severe convective weather situations accompanying with low-level southwest jets are 66.5%, and the majority are types of moderate or slightly northward jet. The dominant synoptic situations are low trough and low-vortex shear or upper- level trough which influences areas covering more than three stations or ten stations. The severe convective weather of weak shear type often occurs during July to September, and the dominant synoptic patters are subtropical high edge type and typhoon periphery type. There are not southwest jets in low level, so a wide severe convective weather rarely happens.关键词
强对流/天气型/福建省Key words
Severe convective/Synoptic patterns/Fujian province分类
天文与地球科学引用本文复制引用
蔡义勇,王宏,余永江..1991-2008年福建省强对流天气特征[J].气象与环境学报,2012,28(6):38-43,6.基金项目
福建省自然科学基金（2008J0240）和福建省气象局开放式气象科学研究基金（2008K01）共同资助. （）
