苏州市雷电灾害致灾因子危险性区域差异研究
Regional Differentiation of Risks from Lightning Disaster-Causing Factors in Suzhou City
中文摘要：
近年来，苏州市雷电灾害频发，对苏州市雷电灾害的风险区域差异化分级可为雷电灾害防御提供参考。基于2016—2020年苏州市三维闪电定位系统资料、高程数据（DEM）和土壤电导率数据进行归一化处理形成1 km×1 km的栅格数据，选取地闪密度、地闪强度、土壤电导率、海拔高度、地形起伏度5个指标分析苏州市雷电灾害致灾因子危险性，基于标准差分级法对致灾因子危险性结果进行风险区域等级划分。结果表明：高危险集中在常熟市的东北部，太仓市西北部；次高危险分布在虎丘区东部、吴中区东部和南部；中等危险分布于姑苏区北部；次低和低危险集中在昆山市和吴江区东部以及太湖地区（吴中区西部）。
中文关键词：
苏州市，雷电灾害，致灾因子，危险性，区域差异
KeyWords：
Suzhou City, lightning disaster, disaster-causing factors, risk, regional differentiation
Abstract：
In recent years, lightning disasters have occurred frequently in Suzhou. The regional differentiation classification of lightning disaster risk in Suzhou can provide reference for lightning disaster prevention. Based on the three-dimensional lightning location system data, elevation data (DEM ) and soil conductivity data of Suzhou City from 2016 to 2020, the grid data of 1 km × 1 km was formed by normalization processing. The five indexes of ground flash density, ground flash intensity, soil conductivity, altitude and topographic relief were selected to conduct risk analysis for the lighting disaster-causing factors in Suzhou City. The standard deviation classification method was used to classify the risk area of disaster-causing factors. The results show that the high risk is concentrated in the northeast of Changshu City and the northwest of Taicang City; the sub-high risk is distributed in the east of Huqiu District as well as the east and south of Wuzhong District; the medium risk is distributed in the north of Gusu District; the sub-low and low risks are concentrated in Kunshan City, the eastern Wujiang District and the Taihu Lake area (western Wuzhong District).