华南春季强风暴背景流场的若干特征  

Some Aspects of the Environmental Wind Fields of A Severe Stormin Spring over South China

作　　者：贺海晏[1] 

机构地区：[1]中山大学大气科学系,广州510275

出　　处：《大气科学》1993年第5期532-539,共8页Chinese Journal of Atmospheric Sciences

摘　　要：本文利用常规探测资料,分析了1983年3月25日发生在珠江三角洲地区的一次强对流天气过程背景流场的几个重要特征,如高空急流的结构与变化、辐散风场及与之相联系的背景次级环流、风场垂直切变和水平切变等.This is a case study of the environmental wind fields in a local severe convective storm occurred on 25 March 1983 in the Zhujiang River delta area of South China . Some aspects of the wind fields such as structures and variations of the upper tropospheric WSW jets , divergent wind fields and the related vertical secondary circulations , and the vertical and horizontal wind shear etc. were examined in relation to the severe convective weather process with operational observations .

关 键 词：局地强风暴 背景流场 急流 风暴 

分 类 号：P425.54[天文地球—大气科学及气象学]