气象Issue(2)：206-215,10.DOI:10.7519/j.issn.1000-0526.2014.02.008
河北暴雨的多普勒天气雷达径向速度特征
Characteristics of Doppler Rader Velocity Field in Severe Rainstorms in Hebei
摘要
Abstract
By using the Doppler radar data and the conventional observation of 29 torrential rain processes from 2004 to 2010 the velocity field characteristics in rainstorms in south-central Hebei Province are ana-lyzed.It is found that the characteristics can be divided into five categories,including the meso-βscale con-vergence line,the meso-βscale convergence,the meso-γscale convergence,the upper-level jet and the long-lasting and deep low-level jet.The last one is one of the main velocity field features of large-range se-vere rainstorms.The upper-level jet is the characteristic of both large-range heavy rainstorms and regional heavy rainstorms.The meso-βscale convergence line,the meso-βscale convergence and the meso-γscale convergence are common features and main meso scale systems of all the three types of severe rainstorms. In addition,train effects is a key cause of local severe torrential rains.关键词
暴雨/多普勒天气雷达/径向速度特征/中尺度系统Key words
rainstorm/Doppler weather radar/characteristics of radial velocity field/mesoscale system分类
天文与地球科学引用本文复制引用
王福侠,俞小鼎,王宗敏,裴宇杰,闫雪瑾..河北暴雨的多普勒天气雷达径向速度特征[J].气象,2014,(2):206-215,10.基金项目
公益性行业（气象）科研专项（GYHY200906011，GYHY20070604）及国家科技支撑项目（2008BAC37B01）共同资助 （）
