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Preserved in Portico This version is not peer-reviewed
Features of K-Changes Observed in Sri Lanka in the Tropics
Version 1
: Received: 14 April 2018 / Approved: 16 April 2018 / Online: 16 April 2018 (08:11:25 CEST)
A peer-reviewed article of this Preprint also exists.
Nanayakkara, S.; Fernando, M.; Cooray, V. Features of K-Changes Observed in Sri Lanka in the Tropics. Atmosphere 2019, 10, 141, doi:10.3390/atmos10030141. Nanayakkara, S.; Fernando, M.; Cooray, V. Features of K-Changes Observed in Sri Lanka in the Tropics. Atmosphere 2019, 10, 141, doi:10.3390/atmos10030141.
Abstract
General characteristics of K changes together with their fine structure associated with ground flashes in Sri Lanka in the tropics are presented. It is found that on average there are about 2 K changes associated with each return stroke. Analysis of the fine structure of the K changes shows that the K change is a chaotic pulse burst. Some of these chaotic pulse bursts start and the others end as a regular pulse bursts. Sometimes the chaotic part occurs in between two regular pulse bursts. This is in agreement with the recent published results that claim that chaotic pulse bursts are a random superposition of regular pulse bursts. The results show that the small step fields identified in the literature as K changes are the static fields associated with these pulse bursts.
Keywords
lightning flash; return stroke; K change; chaotic pulse train; regular pulse train
Subject
Environmental and Earth Sciences, Atmospheric Science and Meteorology
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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