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.
出处
《南京气象学院学报》
CSCD
北大核心
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)
关键词
闪电定位
雷暴日
云地闪电
探测效率
对比分析
lightning strike positioning
thunderstorm day
cloud-to-ground flash
detection efficiency
comparative analysis
