Lightning data observed with lightning location system in Guang-Dong Province, China
Lightning data observed with lightning location system in Guang-Dong Province, China
复制标题
DOI：
10.1109/tpwrd.2004.829884
复制
发表时间：
2004-06
影响因子：
4.4
通讯作者：
Shui Ming Chen;Y. Du;Ling Meng Fan
中科院分区：
文献类型：
--
作者：
Shui Ming Chen;Y. Du;Ling Meng Fan
本文利用雷电探测系统对广东省的地闪观测资料进行了分析。数据库中包含了100多万次闪电的信息，采集了年闪电日数，构建了地闪密度图。与广东省气象局年雷暴日数的对比表明，广东省年雷暴日数与广东省年雷暴日数的相关性较弱。研究了地闪密度与雷暴日数的关系，并给出了经验公式。文中还讨论了输电线路故障与地闪密度的关系。值得注意的是，与闪电引起的故障的相关性相对较高。相关系数随放电电流阈值的变化不明显。
This paper presents an investigation into cloud-to-ground lightning activity data collected by a lightning detection system in the Guang-Dong Province, the southernmost in China. Annual lightning days are acquired and ground flash density maps are constructed from the database, which contains the information of more than one million flashes. The lightning days are compared with annual thunderstorm days collected by the Guang-Dong Meteorological Agency, and a weak correlation is noted. The correlation between ground flash density and thunderstorm day is studied, and an empirical formula is presented. The relationship between transmission line faults and ground flash density is discussed in this paper too. It is noted that the correlation with the faults caused by lightning is relatively high. The correlation coefficient does not significantly vary with the threshold of discharge current set for constructing the map of revised ground flash density.