摘要
利用常规观测资料、卫星云图等资料,对2012年6月21～24日广西东南部特大暴雨天气过程进行个例分析。结果表明,高空槽、低涡和切变线长时间维持在广西中部是此次特大暴雨发生的主要因素。物理量诊断分析得出,充分的水汽条件和不稳定层结的能量场在强降水发生前已形成,强降水发生过程中,强辐合明显,短时强对流天气容易发生。分析红外云图和TBB均可以很好反映了此次特大暴雨天气过程出现的强降水时段。
Based on conventional observation data and satellite cloud image data, the heavy rainfall process during June 21 -24, 2012 was analyzed. The results showed that upper trough, low vortex and shear line long time maintain in central Guangxi were main factors for the se- vere storms. The diagnosis analysis of physical quantity was conducted, it was concluded that the deep water vapor conditions and unstable stratification energy field had already formed before strong precipitation occurrence. During strong precipitation occurrence process, strong con- vergence was obvious, short time strong convective weather likely to happen. Analysis of infrared nephogram and TBB, can well reflects strong precipitation period during the heavy rainfall process.
出处
《安徽农业科学》
CAS
2013年第3期1220-1222,1228,共4页
Journal of Anhui Agricultural Sciences
关键词
特大暴雨
天气过程
桂东南
Heavy rainfall process
Weather process
Southeast Guangxi
