摘要
本文利用MICAPS实况资料、多普勒天气雷达资料等对2014年5月24日至25日上饶市出现的区域性暴雨天气过程进行了初步分析。结果表明:欧亚地区较长时间存在两槽一脊的环流形势,东北冷涡的维持为降水的发生提供了冷空气条件;西南急流的生成,为暴雨区提供源源不断的水汽;高层出现冷平流、低层维持暖湿平流高低层配置有利于触发短时强降水等强对流天气。
This paper made a preliminary analysis of the regional rainstorm process in Shangrao City from May 24 to 25,2014 by using the actual data of MICAPS and Doppler weather radar.The results show that there are two troughs and one ridge in Eurasia for a long time,the cold vortex in the Northeast provides cold air conditions for the occur⁃rence of precipitation,the southwest jet provides continuous water vapor for the rainstorm area,the cold advection in the upper layer and the warm and wet advection in the lower layer are conducive to trigger the strong convective weather such as short-term strong precipitation.
作者
范从文
FAN Congwen(Shangrao Meteorological Bureau,Shangrao Jiangxi 334000)
出处
《河南科技》
2020年第25期146-148,共3页
Henan Science and Technology
基金
江西省上饶市气象局科研项目资助(饶气验字2020【02】号)。
关键词
暴雨
水汽通量散度
西南急流
多普勒天气雷达
rainstorm
water vapor flux divergence
southwest jet
Doppler weather radar
