干旱区地理2024，Vol.47Issue(10)：1713-1723,11.DOI:10.12118/j.issn.1000-6060.2024.198
三江源地区草原森林基于空间网格的雷电危险性评估
Assessment of lightning hazard in grasslands and forests in"Three River Source"region based on spatial grids
摘要
Abstract
Lightning disasters in"Three River Source"region,Qinghai Province,China resulted in the most se-vere casualties in June,primarily between 12:00 and 20:00.The highest number of casualties occurred around 16:00,with the most fatalities due to lightning strikes around 17:00.The areas of Nangqen County,Zadoi County,Yushu City in the Yushu Prefecture,and gade in the Golog Prefecture experienced a higher proportion of casualties.The highest flash densities in"Three River Source"region were concentrated in the southern parts of Yushu Prefec-ture and Golog Prefecture,while the highest ground flash intensities were observed in the eastern and southern parts of Golog Prefecture and the southern part of Yushu Prefecture.Lightning disasters were most densely con-centrated in the central and eastern areas of Golog Prefecture and the central and southern parts of Yushu Prefec-ture.The high-risk areas for lightning disasters were distributed across Zhaoxiao Township,Maozhuang Town-ship,Dongba Township,Niangla Township,Jinisai Township in Nangqen County,and Xialaxiu Town in Yushu City,Yushu Prefecture,as well as Baima County,Jigzhi County,Wa'erji Township,and Laga Town in Maqen County,Golog Prefecture.The high-risk areas for grassland lightning hazards were mainly located in the western and southern parts of Yushu Prefecture,and the southern and central eastern parts of Golog Prefecture.Forest lightning risks were concentrated in the southeastern part of Yushu Prefecture and the southern and northeastern parts of Golog Prefecture.The analysis showed a negative correlation between lightning disasters and altitude,while terrain undulation and slope were positively correlated with these events.By assessing the risk of lightning disasters in the grasslands and forests of Yushu Prefecture and Golog Prefecture within the"Three River Source"region,a solid foundation is established for effective lightning disaster prevention.关键词
三江源地区/玉树州和果洛州/草原森林/雷电/危险性Key words
"Three River Source"region/Yushu Prefecture and Golog Prefecture/grassland and forest/thun-der and lightning/hazard引用本文复制引用
谢捷,代青措,马玉芳,孙芙荣,李梓瑄,李乾英..三江源地区草原森林基于空间网格的雷电危险性评估[J].干旱区地理,2024,47(10):1713-1723,11.基金项目
青海省科技计划应用基础研究项目(2023-ZJ-714) （2023-ZJ-714）
青海省气象局重点项目(QXZD2023-04)资助 （QXZD2023-04）
