池州市雷电时空分布特征及雷电防御对策研究

Tem poral and Spatial Distribution Characteristics of Lightning in Chizhou City and Defense Counterm easures for Lightning

选取1983—2012年池州市下辖贵池、东至、石台、青阳4个观测站雷暴日资料,统计分析了池州市雷暴时空分布特征。结果表明,池州市雷暴日数自西北向东南逐渐增多,雷暴主要发生在夏季(6—8月),贵池、东至、青阳年平均雷暴日数呈逐年下降趋势。利用安徽省2010—2016年闪电定位资料数据分析可知,池州市地闪密度大值区主要发生在地形较为复杂的山区,地闪强度大值区主要发生在高海拔山区或水陆交界处。

The thunderstorm day data of Guichi,Dong zhi, Shitai and Qingyang sites under the jurisdiction of Chizhou during 1983-2012 were selected ,and the temporal and spatial distribution characteristics of thunderstorms in Chizhou City were statistically analyzed. The results showed that the number of thunderstorm days in Chizhou gradually increased from northwest to southeast, and thunderstorms mainly occurred in summer （June to August）. The annual average number of thunderstorm days in Guichi,Dongzhi and Qingyang showed a year-by-year decreasing trend . According to the data analysis of lightning location data of Anhui Province during 2010-2016,the large value area of cloud-to-ground lightning density in Chizhou City mainly occurred in mountainous regions with more complex terrain, and the large value area of cloud-to-ground lightning intensity mainly occurred in high altitude mountainous regions or land-water junctions .