摘要
江苏省于2012年7月对ADTD(active divectory topology diagrammer)-1型闪电定位系统进行升级,投入使用ADTD-2型VLF/LF三维全闪电(包括云闪、地闪)定位系统,这两套探测系统的探测效率有待评估。采用江苏省63站人工观测雷暴日资料与ADTD-1、ADTD-2型闪电定位系统资料分别进行对比分析,结果表明:在气象观测站半径r=8 km的范围内,雷暴日资料与ADTD-2闪电定位系统资料的相关性最好;同时,ADTD-2型VLF/LF三维全闪电新系统由于具备探测云闪的功能,其资料的可信度优于ADTD-1。对比8 km范围内2种不同类型观测站(全天候观测站、非全天候观测站)资料,全天候观测站资料相较于非全天候观测站出现较少偏差,使用全天候观测站资料评估ADTD-2闪电定位系统的探测效率,得出23站的平均探测效率为61.4%,雷暴日做为评估资料有一定的局限性。
ADTD-1 lightning location system in Jiangsu province has gone through upgrade in 2012.7 and ADTD-2 VLF/LF 3D total lightning （cloud lightning,cloud to ground lightning） location system has came to use. The two sets of network performance remind evaluation. In this paper, the thunderstorm days data of 63 surface station observations and ADTD-1, ADTD-2 lightning data were analyzed. The analysis show that the ADTD-2 VLF/LF 3D total lightning location system datasets have better correlation compared with the datasets of ADTD-1 as the upgrade system has the ability to detect cloud lightning and the better agreement between the datasets occurs for the radius of 8km around the surface station observation. According to comparative of 2 different surface station observations （all-weather station, non all-weather station）, the least-biased agreement between the datasets occurs for the radius of 8km around the all-weather surface station observation. Use of the dataset of all-weather station to assess the detection efficiency in ADTD-2 61.4%. It is exits limitations when efficiency. lightning location system, the average 23 stations＇ detection efficiency is using the thunderstorm days to evaluate the lightning location system detection efficiency.
出处
《科学技术与工程》
北大核心
2015年第7期79-84,共6页
Science Technology and Engineering
基金
江苏科技支撑计划项目(SBE201371159)资助
