南京市闪电定位资料的对比分析  被引量:61

A Comparative Analysis of the Lightning Strike Positioning Data in Nanjing

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作  者:冯民学[1] 韦海容[2] 焦圣明[3] 周曾奎[3] 王锡中[1] 焦雪[1] 

机构地区:[1]江苏省防雷中心,江苏南京210008 [2]江苏省电力试验研究院,江苏南京210021 [3]江苏省气象科学研究所,江苏南京210008

出  处:《南京气象学院学报》2008年第2期151-157,共7页Journal of Nanjing Institute of Meteorology

基  金:江苏省科技项目(BS2005070);江苏省电力公司项目(2007019)

摘  要:为在雷电的监测预警预报服务中更好地应用江苏省组建的闪电定位系统,通过多种目测和多普勒雷达回波等信息,对2006年6—8月以南京小教场(118°48′E,32°00′N)为中心、半径10 km范围内的闪电定位资料的可信度和探测效率进行了检验分析,结果表明:江苏省气象局闪电定位系统所监测的闪电资料(地闪)是可信的,其漏测率在探测效率η的允许范围内,误测率约为9%,也在允许范围之内。江苏省电力公司的闪电定位系统所探测到的同时段同范围内的闪电资料(地闪)探测正确率大大低于江苏省气象局的监测系统。对江苏省电力公司闪电定位资料作适当修正后,其结果与气象局闪电定位系统资料有很好的一致性,实现了二套系统资料的信息共享、互补。In order to fully utilize the lightning strike positioning systems of Jiangsu province, thus to achieve better results of the alarm and forecast services, the article uses a variety of visual-observation lightning information, and Doppler radar echoes to make an inspection analysis on the dependability and detection efficiency of the lightning strike positioning data from June to August of 2006 ,within 10 km from Xiaojiaochang of Nanjing (32°00′N, 118°48′E). The results show that the lightning strike data obtained by the lightning strike positioning system of the Jiangsu provincial meteorological department are dependable, the undetected lightning rate is within the tolerance range of the detection efficiency η and the incorrect detection rate is around 9% ,which is also within the tolerance range. As is indicated by an inspection and analysis on the lightning strike positioning data obtained by the system of Jiangsu provincial power department in the same period and the same area, the detection system is much poorer in the correct detection rate than that of the Jiangsu provincial meteorological department. After a proper amendment to the lightning strike positioning data obtained by Jiangsu power department, well consistency between the two sets of data was found, and therefore the two sets of data are mutually sharable and complementable.

关 键 词:闪电定位 雷暴日 云地闪电 探测效率 对比分析 

分 类 号:P427.3[天文地球—大气科学及气象学]

 

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