应用多普勒雷达作暴雨的观测分析及临近预警  

OBSERVATION ANALYSIS AND FOREWARNING OF RAINSTORM WITH DOPPLER RADAR

作　　者：柴东红 宋晓辉 李国翠 王建英 

机构地区：[1]河北省气象台,石家庄050021 [2]邯郸市气象台,河北邯郸056001 [3]石家庄市气象台,石家庄050081 [4]衡水市气象台,河北衡水053000

出　　处：《气象科学》2007年第B12期57-64,共8页Journal of the Meteorological Sciences

摘　　要：本文运用多普勒雷达产品和石家庄加密自动站雨量资料对2004年、2005年汛期发生在河北省境内的三场暴雨天气进行了分析,结果发现:利用多普勒雷达产品时空分辨率高、产品丰富和速度场变化较降水变化超前的优点,配合加密自动站雨量的实时降水资料.努力做好暴雨的短时临近预警,及时修正和弥补前期预报的失误或不足是完全可行的。同时.探讨了几条多普勒雷达产品在暴雨临近预警应用中可参考的方法。This article utilized the Doppler radar and the rainfall data and intensive automatic precipi- tation stations in Hebei province to analyze three rainstorms weather in Hebei province during the flood season in 2004 and 2005. The result shows that it＇s completely feasible to carry out the rainstorm＇s shorttime forewarning and promptly revising and making up for the earlier period forecast＇s faults and weak points by means of the Doppler radar＇s high temporal-spatial resolution, rich products and velocity field＇s change earlier than the precipitation＇s change,assisted by real-time precipitation data provided by intensive automatic precipitation stations. Meanwhile, we discussed several referenced methods during the application of rainstorm＇s short-time forewarning by Doppler radar.

关 键 词：暴雨 基本反射率因子 速度图 低空急流 

分 类 号：P458[天文地球—大气科学及气象学]