Time interval between lightning strokes and the initiation of dart leaders
1968; American Geophysical Union; Volume: 73; Issue: 2 Linguagem: Inglês
10.1029/jb073i002p00497
ISSN2156-2202
Autores Tópico(s)Tree Root and Stability Studies
ResumoJournal of Geophysical Research (1896-1977)Volume 73, Issue 2 p. 497-506 Time interval between lightning strokes and the initiation of dart leaders Martin A. Uman, Martin A. UmanSearch for more papers by this authorRoy E. Voshall, Roy E. VoshallSearch for more papers by this author Martin A. Uman, Martin A. UmanSearch for more papers by this authorRoy E. Voshall, Roy E. VoshallSearch for more papers by this author First published: 15 January 1968 https://doi.org/10.1029/JB073i002p00497Citations: 84AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract The temperature decay of a lightning channel during the interstroke period is determined theoretically. It is shown that, in the absence of input energy to the channel, the channel temperature will decay sufficiently slowly so that conditions conducive to the initiation and propagation of a dart leader will exist in the channel after a typical interstroke period of 40 msec. Thus, it would appear unnecessary to invoke the special mechanisms suggested by Brook et al. and by Loeb to explain the 'long' interstroke period. The calculations indicate that the lightning channel radius during the latter stages of a lightning stroke is of the order of centimeters. A mechanism is suggested to explain the phenomenon of bead lightning and to account for the observed long-lasting luminosity occurring at certain points on the normal discharge channel. References Allen, R. 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Citing Literature Volume73, Issue215 January 1968Pages 497-506 ReferencesRelatedInformation
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