摘要
从天气形势、卫星云图、雷达资料及部分物理量、对流参数等方面,对江西2004年4月23日的强对流天气过程进行了分析。分析结果表明,高空南支槽、地面辐合线、850hPa西南急流和切变线,是这次强对流天气过程的主要影响系统;强风垂直切变和不稳定是这次强对流发生的重要条件;对流云团发生在逗点云系的凹边界;强对流落区与500hPa干舌、中尺度辐合线、当天14时≥40℃的地面总温度有较好的空间对应关系。
Combined of the weather system,satellite cloud picture,radar data,meteorological element and convective parameters,the severe covective Weather process on 23th,apr,2004 in jiangxi province have been analysed.Results show,it is the principle influencing systems that the upper trough,surface convergence line,The low level southwest jet and shear line.Strong vertical shear and instability is the Important Condition caused this Severe covective weather process.The convective cloud cluster occurre in concave boundary of the comma cloud.There are good space coincidence relation between the Severe Covective area and areas such as the dry tongue at 500 hPa,surface convergence line and the total temperature of surface above 40 ℃.
出处
《气象与减灾研究》
2006年第2期56-59,共4页
Meteorology and Disaster Reduction Research
基金
江西省科技厅重点资助项目-江西省突发性风暴天气检测和预警研究
江西省防灾减灾研究基金资助项目
关键词
对流云团
强对流
中尺度辐合线
分析
The convective cloud cluster,Severe Covective,Surface convergence line,Analysis.
