地面大气电场仪在一次雷暴天气过程中的预警应用分析  

Application Analysis of Ground Atmospheric Electric Field Instrument in Early Warning of a Thunderstorm

作　　者：李卫平 许伟 任照环 何静[1] LI Weiping(Chongqing Lightning Protection Center,Chongqing 401120)

机构地区：[1]重庆市防雷中心,重庆401120 [2]重庆市防雷检测技术协会,重庆401120

出　　处：《农业灾害研究》2022年第3期106-109,112,共5页Journal of Agricultural Catastrophology

摘　　要：雷电监测预警服务是雷电灾害防御工作的重要环节。采用“阈值+过限计数”的预警算法,结合ADTD定位数据和SWAN拼图产品,分析了大气电场仪在一次典型雷暴天气过程中的预警效果。根据目标区域的大小,大气电场仪发出预警提前时间分别为10 min和50 min,但橙色和红色预警信号均出现滞后。针对探头解除预警过早的问题,可设置预警驻留时间,综合采用“服务端算法”+“探头算法”相结合的方法予以进一步优化。Lightning monitoring and early warning service is an important part of lightning disaster prevention.This paper analyzed the early warning effect of electric field meter in a typical thunderstorm by using the warning algorithm of“threshold&limit counting”,combined with ADTD positioning data and SWAN puzzle products,the warning time of the electric field meter is 10 minutes and 50 minutes respectively according to the target area size,However,both orange and red warning signals are delayed.For the problem of premature releasing of warning signals,the combination of“server algorithm”&“probe algorithm”can be used for further optimizing by setting warning dwell time.

关 键 词：大气电场 雷暴 预警应用 对比分析 

分 类 号：S161[农业科学—农业气象学]