新一代天气雷达与闪电定位仪资料在一次区域性暴雨过程中的分析应用

根据一次大范围暴雨天气过程的闪电定位资料和多普勒雷达资料，利用统计和对比分析的方法，发现了闪电发生频数、强度和雷达回波强度在时间序列上有较好的一致性；在雷达回波发展的不同阶段，闪电发生的位置与雷达强回波位置有时相同，有时偏离，有时甚至无闪电发生；雷达回波速度场分析表明，在低层存在不利于对流发展的环境风场特征时，降水回波在向测站移动的过程中趋于消散，闪电频数也随着减少；在降水回波速度辐合区，对应闪电活动频繁。

Analysis and Application of New Generation Weather Radar and Lightning Detection System Data in A Regional Rainstorm

According to a large-scale rainstorm process of lightning location information and Doppler radar data and using statistical and comparative analysis method, it was found that there was a good consistency between the lightning frequency, intensity and radar echo intensity in the time series. The location of lightning and the radar echo sometimes is same, sometimes is depart from and even sometimes without lightning in different stages of development of radar echo. By the analysis of radar echo speed, precipitation echo dissipated when it moved to the station and lightning frequency reduced when there were the unfavorable wind flow characteristics for the development ot convection in the lower level. There was frequent lightning in the convergence area of precipitation echo speed.