摘要
利用NECP/NCRE再分析资料、雷达观测及自动气象站等观测资料,对2011年7月中旬东莞两轮区域性强降水过程特征进行了分析。结果表明:大范围强降水过程是在西南季风爆发、ITCZ北抬与高空东亚大槽南压的共同作用下产生,而东莞地区两轮强降水是低层区域切变辐合发展及移动触发的。
Using the NECP/NCAR reanalysis, radar echoes and observations from automatic weather stations, this work studied the characteristics of two processes of severe rain across the region of Dongguan in mid-July 2011. The results show that with the joint effect of the onset of the Southwest Monsoon, the north- ward progression of Intertropieal Convective Zone and the southward shift of a main upper-level trough in East Asia, the two rains were triggered to take place by the development and movement of regional shear and convergence at low levels.
出处
《广东气象》
2014年第1期38-42,46,共6页
Guangdong Meteorology
关键词
后汛期暴雨
季风爆发
强降水特征
东莞
torrential rain during the annually second rain season
monsoon onset
characteristics of intense rain
Dong Guan
