Relation between the near-Earth electric field at high latitudes and intense cloud-to-ground lightning strokes initiating VLF emission bursts

Since 1998, the gradient of the near-Earth atmospheric electric field potential (|Ez|) has been continuously registered at Vostok Antarctic station within the scope of the joint Russian-Australian project. The data of the continuous 10-day period of fine weather in April 1998 have been selected for...

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Bibliographic Details
Published in:Geomagnetism and Aeronomy 2006-05, Vol.46 (3), p.382-388
Main Authors: Frank-Kamenetsky, A. V., Troshichev, O. A., Morozov, V. N., Burns, G., Corney, R.
Format: Article
Language:English
Subjects:
Electric fields
Lightning
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Summary:Since 1998, the gradient of the near-Earth atmospheric electric field potential (|Ez|) has been continuously registered at Vostok Antarctic station within the scope of the joint Russian-Australian project. The data of the continuous 10-day period of fine weather in April 1998 have been selected for the following analysis. The field |Ez| behavior at Vostok station was compared with a number of lightning strokes obtained from data of the ground-based network of electromagnetic measurements. It has been found out that the average hourly values of |Ez| evidently negatively correlate with the number of intense lightning strokes. The causes of these relations are discussed. The obtained results are interpreted based on a theory of global electric circuit.[PUBLICATION ABSTRACT]
ISSN:0016-7932
1555-645X
0016-7940
DOI:10.1134/S0016793206030133