摘要
2006年7月2日下午,宁夏陶乐县突遭短时特大暴雨袭击。此次暴雨降水强度大,1h和10m in降水量为宁夏44年之最。本文利用常规气象资料、宁夏本地化中尺度数值预报MM5模式产品、多普勒雷达探测资料、卫星云图,对本次突发性短时暴雨发生前后的天气环流背景、影响系统及中小尺度系统发生发展等进行分析。结果表明:这次突发性暴雨具有明显的中小尺度系统特征,主要影响系统有地面河套热倒槽,500hPa和700hPa兰州与银川的暖性低涡及地面中β尺度低涡,为暖湿不稳定能量的贮存和短时强降水的产生与维持提供了有利的动力条件。
A sudden strong rainstorm attacked Taole County Ningxia on the afternoon of July 2,2006. The precipitation of lh 10min was the most in Ningxia in recent 44 years. The conventional meteorological information, MM5 forecasting model products, Doppler radar information and satellite cloud picture were applied to analyze the weather circulation background, effects system and the development of medium and small scale systems. The results showed ：The sudden rainstorm was with a clear system of small and medium scale. The main impact of a ground - based system were loop hot, 500hPa and 700hPa Lanzhou and Yinchuan warm whirlpool of low ground.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2008年第7期64-70,共7页
Journal of Arid Land Resources and Environment
基金
受宁夏新一代天气雷达卫星云图在人工影响天气中的应用项目资助
关键词
多普勒雷达资料
MM5预报产品
中小尺度
Doppler radar information
MM5 forecasting model products
meso - small scale
