Comparative Analysis of Two Sets of Lightning Location Systems Based on Flash Grouping in Hubei Province
In order to study the two sets of lightning location systems of Hubei Province,the ground lightning data in Hubei Province from 2015 to 2020 were analyzed on the basis of return lightning.The main parameters such as lightning frequency,spa-tial and temporal distribution,monthly distribution of current intensity and cumulative probability of lightning current amplitude were compared and analyzed.The result showed that the ADTD-2 system has higher detection efficiency than the ADTD-1 sys-tem,except local outliers in locating positive ground flash intensity.Its detection efficiency of positive ground flash is higher than that of negative ground flash,and the time resolution of detecting negative ground flash return stroke is also higher than that de-tected by the ADTD-1 system.That also means the ADTD-2 system is more accurate than the ADTD-1 system.
two sets of lightning location systemsflash groupingspatial and temporal distributionflash current intensitycumulative probability