新一代天气雷达产品在雷电业务中的应用  

Application of New Generation Weather Radar Products in Lightning Service

作　　者：戴劲 邓洁琼 何宁 林明丽 尹宝蓉 DAI Jin;DENG Jieqiong;HE Ning;LIN Mingli;YIN Baorong(Xiangtan Meteorological Bureau,Xiangtan Hunan 411100)

机构地区：[1]湘潭市气象局,湖南湘潭411100

出　　处：《河南科技》2021年第16期132-134,共3页Henan Science and Technology

摘　　要：本文主要研究基本反射率因子、回波顶高、垂直累积液态水含量以及径向速度等雷达产品与雷电预报因子的相关性。结果表明:40 dBZ强度回波伸展高度≥7.5 km是区分单体是否发生闪电的一个重要预警指标;雷达回波顶高与闪电的发生之间具有较好的相关性;垂直累积液态水含量(VIL)可以表征的对流强弱对雷电预警具有一定程度的指示作用。This paper mainly studied the correlation between radar products such as basic reflectivity factor,echo top height,vertical cumulative liquid water content and radial velocity and lightning prediction factors.The results show that the extension height of 40 dBZ echo≥7.5 km is an important early warning index to distinguish whether lightning occurs in a single building;There is a good correlation between the top height of radar echo and the occurrence of lightning;Vertical cumulative liquid water content(VIL)can characterize the convective intensity,which can indicate the lightning early warning to a certain extent.

关 键 词：基本反射率因子 回波顶高 垂直累积液态水含量 径向速度 

分 类 号：P416[天文地球—大气科学及气象学]