桂林雷雨大风的雷达回波特征及预报着眼点

通过对2004-2008年桂林市13个气象观测站33个雷雨大风个例进行普查,并结合历史天气图分析,总结出产生雷雨大风的3种天气形势。分析33个个例的同期桂林多普勒雷达回波资料,发现在3种天气形势下桂林市雷雨大风天气的雷达回波（包括基本反射率、径向速度、风廓线、回波顶高、垂直积分液态水含量）特征和预报着眼点。这些结论为桂林地区的预报服务及防灾减灾提供了重要依据。

Radar Echo Chara-cteristics and Forecast Point of Thunderstorm Gale in Guilin

Three types of synoptic situations which can cause thunderstorm gale were summaried based on the survey of the 33 cases of thunderstorm gale in 13 meteorological stations of Guilin from 2004 to 2008 and the analysis of historical weather chart.Through the analysis of the radar echo data of the Doppler radar echo data of the 33 cases over the same period,the radar echo characteristics（including base reflectivity,radial velocity,wind profilers,echo top height,vertically integrated liquid water content） and forecast points of the three synoptic situations were found.The conclusions provide references for the forecasting service and disaster prevention and mitigation of Guilin area.