韶关"7.19"暴雨成因分析

通过对常规气象资料、卫星云图和多普勒雷达资料的分析，发现在西南季风爆发的背景下，当高空槽超前于低层切变和地面锋面，在高空槽附近有不稳定能量积累，华南中部生成的中尺度对流云团往北发展造成了韶关南部的连续暴雨；而韶关北部的强降水则属于典型的锋面低槽降水。

An Analysis on Mechanism of the "7.19" Torrential Rain in Shaoguan

Through analyses of conventional meteorological data, satellite imageries and Doppler Radar observations, it was found under the background of southwesterly monsoon onset that persistent torrential rain in south of Shaoguan was induced by northward development of mesoscale convective cloud cells initiated in central South China when a upper trough was located in front of wind shear in the lower layer and surface front, and there existed accumulation of instability energy near the upper trough. Meanwhile, the heavy rainfall in north of Shaoguan was typical of that induced by lower layer trough and front.