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The temporal evolution of three-dimensional lightning parameters and their suitability for thunderstorm tracking and nowcasting

by V K Meyer, H Höller, Hans D Betz
Atmospheric Chemistry and Physics ()

Abstract

Total lightning (TL) data have been found to provide valuable information about the internal dynamics of a thunderstorm allowing conclusions about its further development as well as indicating potential of thunderstorm-related severe weather at the ground.This paper investigates electrical discharge correlations of strokes and flashes with respect to the temporal evolution of thunderstorms in case studies as well as by statistical means. The recently developed algorithm li-TRAM (tracking and monitoring of lightning cells, Meyer et al., 2013) ha been employed to track and monitor thunderstorms based on three-dimensionally resolved TL data provikded as stroke events by the European lightning location network LINET. From statisical investigation of 863 suited thunderstorm life cycles, the cell area turned out to correlate well with (a) the total discharge rate, (b) the in-cloud (IC) discharge rate, ang (c) the mean IC discharge height per lihgtning cell as identified by li-TRAM.

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