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Title: Diagnostics and propagation of radiation from lightning discharges
Authors: Singh, Mahendra
Singh, R D
Issue Date: Oct-1991
Publisher: NISCAIR-CSIR, India
Abstract: The role of stepped leader channel ionization on return current flow has been studied. It is shown that for Te > Ti, the downward traversing electron beam in the stepped leader ionized channel gives rise to plasma oscillations with a finite decay rate. The electron beam propagating downward and ion beam propagating upward give rise to resulting return current. The return current in the lightning channel may become oscillatory as a result of plasma wave interaction. The electromagnetic radiation from an oscillatory return current source becomes variable. Such variations in recorded whistler intensity are often observed in whistler sonograms.
Page(s): 338-346
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.20(5) [October 1991]

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