【摘要】 利用2007—2016年湖北省雷电监测系统获得的雷电资料,经过统计分析雷电流幅值、雷电陡度的特征,建立了雷电强度等级评估模型。采用对称不等间隔四级法,将雷电强度分为弱(Ⅰ)、中等(Ⅱ)、强(Ⅲ)和极强(Ⅳ)4个等级,并计算出各等级划分阈值。检验了分级阈值的合理性,同时用雷电灾害情况对分级结果作了进一步检验,结果表明雷电强度分级方法是客观可行的,能够为雷电灾害评估和等级划分、雷电预报预警等工作提供重要的参考。更多还原

【Abstract】 Based on the Lightning data obtained from the lightning location system in Hubei Province from2007 to 2016,the evaluation model of lightning intensity is established after the statistical analysis of the characteristics of lightning current amplitude and lightning steepness.The lightning intensity is divided into four levels:weak(Ⅰ),medium(Ⅱ),strong(Ⅲ)and extremely strong(Ⅳ)by using the method of symmetrical unequal interval,and the thresholds for each level are calculated.In addition to test the rationality of the classification threshold,a further inspection is also made with the thunder and lightning disaster data.The results show that the lightning intensity classification method is objective and feasible,which can provide references for lightning disaster assessment and classification,and lightning warning and forecasting.更多还原