Analysis of Lightning Activity Characteristics Based on ADTD Data in Jiangxi Province
The spatial and temporal distribution of lightning activities are analyzed by using ADTD data from 2008 to 2014 in Jiangxi province. The results are as follow:1) Average flash are 6.12×105 fl/a in Jiangxi province and have no significant change in the trend. The average intensity of+CG(22.22 kA) is 1.78 times more than-CG(-7.99kA). 2) From June to August lightning activities are frequent. The ratio of +CG activity is the highest in winter, second in autumn. The period from 12:00 BT to 21:00 BT is the most frequent period of lightning activity, accounts for 79.4%of the total CG. The 50%cumulative probability of+CG lightning intensity is 17.46 kA and-CG is -7.01 kA. 3) The annual spatial distributions of lightning frequency and intensity vary greatly, with partial of municipal district of Jiujiang, southeast of Nanchang, north-central of Fuzhou with+CG ratio around 9%-15%.
lightning activityADTDCGlightning amplitudespatial and temporal distribution
NETL
NSTL
万方数据
维普
