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暴雨多普勒天气雷达资料的分析
引用本文:夏文梅,张亚萍,汤达章,顾松山,杜秉玉.暴雨多普勒天气雷达资料的分析[J].南京气象学院学报,2002,25(6):787-794.
作者姓名:夏文梅  张亚萍  汤达章  顾松山  杜秉玉
作者单位:南京气象学院,电子工程系,江苏,南京,210044
基金项目:中国气象局灾害司“部分重点防洪地区新一代天气雷达建设项目多普勒雷达资料应用”项目
摘    要:利用多普勒天气雷达资料,对安徽省2000年6月1日至3日的连续性大暴雨过程进行了分析。结果表明:多普勒零速率线在测站近距离两侧顺转程度不一致,近距离存在大尺度辐合与暖平流的迭加,而在较远距离处存在冷平流,为暴雨产生和维持提供有利的水汽垂直输送和辐合上升运动,逆风区和中小尺度气旋性切变及垂直切变是强降水中心在多普勒速度图上的另一特征,强回波中心朝着辐合区方向移动。

关 键 词:多普勒天气雷达  暴雨  多普勒速度图  逆风区  天气过程分析  水汽
文章编号:1000-2022(2002)06-0787-08
修稿时间:2002年3月21日

Analysis of Doppler Weather Radar Measurements on Rain Gush
XIA Wen mei,ZHANG Ya ping,TANG Da zhang,GU Song shan,DU Bing yu.Analysis of Doppler Weather Radar Measurements on Rain Gush[J].Journal of Nanjing Institute of Meteorology,2002,25(6):787-794.
Authors:XIA Wen mei  ZHANG Ya ping  TANG Da zhang  GU Song shan  DU Bing yu
Abstract:A successive severe storm from 1 June to 3 June 2000 in Anhui Province is analyzed based on the data from Dopple weather radar.The result shows that the degree of clock wise turn of zero Doppler velocity contour varies on both sides of the observational site in near range,which explains that there exists a superposition between large scale covergence and warm advection.While,there is cold advection in a little bit farther.This structure produces vertical vapor transport and upward movement that are favorable for formation and continuation of the rain gush.The adverse wind zone and mid and small scale cyclonic shear and vertical shear are another features of strong rainfall center on Doppler velocity field.Strong echo center moves toward convergence region.
Keywords:rain gush  Doppler velocity field  adverse wind zone
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