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Some properties of negative cloud-to-ground (CG) lightning flashes, in terms of number of strokes per flash, inter-stroke interval and the relative strength of subsequent stroke with respect to the first stroke in the flash, were presented by so called accurate-stroke-count studies based on a large data set including 1085 negative CG flashes occurring during a local thunderstorm. About 70% of negative...
Here we report characteristics of more than 100 cases of Narrow Bipolar Events (NBEs) occurred during two thunderstorms on the basis of our analysis of the dataset collected by a GPS based three-station time of arrival (TOA) lightning location system deployed in Northeast China during the summer of 2010. All of the NBEs were of positive polarity and the amplitude of VLF/LF initial pulse of NBE was...
From analysis of VLF/LF bandwidth electric and magnetic fields and associated VHF emission of 245 NBE-related records during a thunderstorm, the temporal context of NBEs with ordinary lightning discharges was studied. Both negative and positive NBEs could occur in the thunderstorm and -NBEs tended to occur at a much higher altitude than +NBEs. 26 of 377 NBEs were identified as isolated ones since...
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