青海省近40年雷电灾害时空分布规律

Temporal and Spatial Distribution of the Lightning Disasters in Qinghai Province in Newly 40 Years

应用青海省1981-2020年以来的雷电灾害资料,统计分析了青海省近40年来雷电灾害的时空分布和时间变化规律。结果表明:青海省的年雷电灾害发生次数及雷电灾害引起的人员伤亡和财产损失情况均随着年代的增长先增加后减少;5-9月是雷电灾害的频发期,占全年雷电灾害比例的96.1%;青海省的雷灾事故发生具有较强的区域性,西宁市辖区是雷电灾害发生次数和密度最大的区域。文章最后提出了一些雷电灾害事故的主要防御措施,分析结果对青海地区雷电灾害的防御具有一定的参考价值。

Based on the data of lightning disasters in Qinghai Province from 1981 to 2020,this paper statistically analyzes the temporal and spatial distribution and temporal variation of lightning disasters in Qinghai Province in the past 40 years.The results showed that:As the growth of years,the average annual number of lightning disasters and the casualties and property losses caused by lightning disasters in Qinghai Province both increased first and then decreased;Frequent periods of lightning disasters in Qinghai Province were from May to September,accounting for 96.1 percent of the whole year;The occurrence of lightning disasters in Qinghai Province was highly regional,and Xining City was the area with the highest number and density of lightning disasters.Finally,some main defense measures for lightning disasters were proposed,and the analysis results had certain reference value for the prevention of lightning disasters in Qinghai Province.