基于归闪的湖北省两套闪电定位系统对比分析
Comparative Analysis of Two Sets of Lightning Location Systems Based on Flash Grouping in Hubei Province
朱传林 1庞文静 2孙京3
作者信息
- 1. 湖北省防雷中心,湖北 武汉 430074;中国气象局气象探测中心,北京 100081
- 2. 中国气象局气象探测中心,北京 100081
- 3. 中国气象局武汉暴雨研究所,湖北 武汉 430074
- 折叠
摘要
为研究湖北省两套闪电定位系统,在归闪的基础上研究分析了 2015-2020 年湖北地区地闪数据,对闪电频次、时空分布、电流强度月分布、雷电流幅值累积概率等主要参数进行了比对分析,研究结果表明:ADTD-2 系统在定位正地闪强度存在局部异常值外,比ADTD-1 系统具有更高的探测效率,其中正地闪的探测效率比负地闪提升幅度更高,探测负地闪回击的时间分辨率也比ADTD-1 系统高,ADTD-2 闪电数据整体优于ADTD-1 数据.
Abstract
In order to study the two sets of lightning location systems of Hubei Province,the ground lightning data in Hubei Province from 2015 to 2020 were analyzed on the basis of return lightning.The main parameters such as lightning frequency,spa-tial and temporal distribution,monthly distribution of current intensity and cumulative probability of lightning current amplitude were compared and analyzed.The result showed that the ADTD-2 system has higher detection efficiency than the ADTD-1 sys-tem,except local outliers in locating positive ground flash intensity.Its detection efficiency of positive ground flash is higher than that of negative ground flash,and the time resolution of detecting negative ground flash return stroke is also higher than that de-tected by the ADTD-1 system.That also means the ADTD-2 system is more accurate than the ADTD-1 system.
关键词
两套定位系统/归闪/时空分布/电流强度/累积概率Key words
two sets of lightning location systems/flash grouping/spatial and temporal distribution/flash current intensity/cumulative probability引用本文复制引用
基金项目
湖北省自然科学基金面上项目(2021CFB571)
湖北省自然科学基金联合基金项目(2022CFD123)
出版年
2024
NETL
NSTL
维普
万方数据