两种闪电定位资料的对比分析

为更准确地应用闪电定位资料,实现资料的共享、互补,更好地为防雷减灾服务,利用贵州省2017年ADTD、VLF/LF两种闪电定位资料,运用数理统计等方法结合SPSS、MATLAB和ArcMap对闪电频次、雷电流强度等的时间分布和雷电流强度变化等进行对比分析。发现贵州省云闪中正闪发生的概率较高,正闪比例的峰值区域集中在冬季且雷电流强度最高; ADTD的雷电流强度整体大于VLF/LF,均较符合高斯分布;从探测到的闪电次数分析VLF/LF的探测效率较ADTD高。可见两套系统探测结果存在异同,因受探测站点安装时间的制约,需要积累长时间数据进行对比分析。

Comparative Analysis of two kinds of Lightning Location Data

In order to more accurately apply lightning location data, realize data sharing and complementation, and better serve lightning protection and disaster reduction.Using 2017 lightning location data of ADTD and VLF/LF of Guizhou ,using mathematical statistics and other methods combined with SPSS, MATLAB and ArcMap, the time distribution of lightning frequency, lightning current intensity and the change of lightning current intensity were compared and analyzed.The results show that the probability of occurrence of positive polarity lightning is high in Guizhou , the peak area of the proportion of positive is concentrated in winter and the intensity of positive polarity lightning current is the highest.The overall intensity of lightning current of ADTD is greater than that of VLF/LF, both of which accord with gaussian distribution.The detection efficiency of VLF/LF is higher than that of ADTD.It is concluded that the detection results of the two systems are Similarities and differences. As the installation time of the detection station is limited, it is necessary to accumulate long-term data for comparative analysis.