Space–Time Correlations of Lightning Distributions

Ulli Finke Institut für Physik der Atmosphäre, DLR, Oberpfaffenhofen, Germany

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Abstract

Lightning location data are used to calculate the autocorrelation function of lightning distributions, which is a function of distances and time intervals between the single lightning events. This function is utilized for the characterization of the regional thunderstorm activity and for the derivation of propagation characteristics such as velocity, lifetime, and spatial sizes of electrically active storms. The presented method is proposed to serve as a tool for classification and climatological analysis of regional storm activity.

* Current affiliation: Institute of Meteorology and Climatology, University of Hannover, Hannover, Germany.

Corresponding author address: Dr. Ullrich Finke, Institut für Meteorologie und Klimatologie, Universität Hannover, Herrenhäuser Straße 2, 30419 Hannover, Germany.

Email: finke@muk.uni-hannover.de

Abstract

Lightning location data are used to calculate the autocorrelation function of lightning distributions, which is a function of distances and time intervals between the single lightning events. This function is utilized for the characterization of the regional thunderstorm activity and for the derivation of propagation characteristics such as velocity, lifetime, and spatial sizes of electrically active storms. The presented method is proposed to serve as a tool for classification and climatological analysis of regional storm activity.

* Current affiliation: Institute of Meteorology and Climatology, University of Hannover, Hannover, Germany.

Corresponding author address: Dr. Ullrich Finke, Institut für Meteorologie und Klimatologie, Universität Hannover, Herrenhäuser Straße 2, 30419 Hannover, Germany.

Email: finke@muk.uni-hannover.de

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