Characteristics of Lightning Density in Zhongshan City Based on Lightning Location Data
LIN Shiqi
ZHU Shuman
HAN Yanling
LUO Zhiyong
Abstract：To understand the characteristics of lightning density in Zhongshan City,lightning location data from the Guangdong-Hong Kong-Macao Lightning Location System and the Zhongshan Lightning Loca-tion System(2014-2023)were analyzed.The results show that:(1)Lightning in Zhongshan is predomi-nantly negative flashes,accounting for 68.96％,while positive flashes make up 31.04％,indicating signifi-cantly more negative flashes.(2)Cloud-to-ground(CG)lightning frequency is highest in summer,followed by spring and autumn,and lowest in winter.(3)Lightning activity exhibits a quasi-bimodal variation,con-centrated from March to September,with the total flashes during the flood season accounting for 99.39％of the annual total.(4)The average CG lightning density over the past decade is 22.58 flashes·km-2·year-1.(5)The towns with extremely high CG lightning density are mainly Huangpu,Sanjiao,Fusha,and Minzhong.This study provides crucial insights into the spatiotemporal distribution of lightning activity in Zhongshan City,which is essential for improving lightning risk assessment,optimizing regional lightning pro-tection measures,and enhancing disaster prevention and mitigation strategies in this rapidly developing urban area.
Keywords：climatologylightning locationlightning densityZhongshan City
Publication Date：2025-06-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 41-44 )