【作者】 陶林科； 杨有林； 胡文东； 杨侃； 穆建华； 舒志亮；

【机构】 宁夏吴忠市气象局； 宁夏防灾减灾重点实验室； 宁夏气象台；

【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10min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。更多还原

【Abstract】 On the afternoon of July 2 2006, Ningxia Taole County sudden rainstorm forecasting catastrophic attacks. The big rainstorm precipitation intensity, and 1h 10min Ningxia 44 years for the most precipitation. The use of conventional meteorological information, Ningxia numerical measure of the localization of MM5 forecasting model products, Doppler radar detection of information, satellite cloud to spoil this sudden rainstorm occurred weather circulation around the background, effects system and the development of medium and small scale systems analysis. The results showed :The sudden rainstorm with a clear system of small and medium scale. The main impact of a ground-based system would shafts Loop hot, 500hPa and 700hPa Lanzhou and Yinchuan warm whirlpool of low ground, and low beta yardstick Wo River, unstable energy sources for the storage of heavy precipitation and short generation and maintenance provided favorable momentum.更多还原