热带气象学报2025，Vol.41Issue(4)：476-484,9.DOI:10.16032/j.issn.1004-4965.2025.041
中山市雷电伤人事件的成因分析
Analysis of the Causes of a Lightning Injury Incident in Zhongshan City
摘要
Abstract
Based on multiband radar monitoring data from Zhongshan City and Guangdong lightning positioning system data,combining model calculations,we investigated a lightning strike incident on Shitou Mountain in Zhongshan City on April 5,2024.This event,which caused transient cardiorespiratory arrest and suspended animation in one victim,occurred at the southern periphery of a convective cloud cluster during brief showers.The lightning channel featured dual-ground termination points(peak current:-20 kA)that preferentially struck two adjacent trees before side-flashing to a victim located only 0.2 m away.Calculations indicate the victim experienced both a direct strike(2.312 kA)and step voltage(348.04 kV).A witness standing 1.1 m from the tree was exposed to about 22.6 kV step voltage(below the 43.96 kV safety threshold),reporting only finger numbness.The accompanying children at 2-3 m distance experienced 3.61-7.56 kV step voltage with no effects.关键词
雷击灾害/"假死"/雷暴天气/旁络闪击/跨步电压Key words
lightning strike/suspended animation/thunderstorm weather/side flash/step voltage分类
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罗志勇,甄小琼,殷启元,黄源,吴经尊,林世祺,许锦延..中山市雷电伤人事件的成因分析[J].热带气象学报,2025,41(4):476-484,9.基金项目
中国气象局雷电重点开放实验室项目(2024KELL-B006、2023KELL-B006)共同资助 （2024KELL-B006、2023KELL-B006）
