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Tweek atmospherics: diagnostics tools to probe d-region ionosphere

Kumar, Sushil (2010) Tweek atmospherics: diagnostics tools to probe d-region ionosphere. [Conference Proceedings]

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Abstract

Atmospherics or sferics originating from lightning discharges on propagating large distances in the Earth-ionosphere waveguide, particularly at the night, form dispersed sferics called tweeks. Tweeks have been successfully used as novel diagnostic tool to probe the nighttime D-region ionosphere. From the analysis of tweeks the path integrated mean ionospheric reflection height and path integrated mean electron density can be estimated. Some of the results on D-region parameters estimated using the higher harmonic tweeks recorded in the time between 21-03 hrs LT at Suva (18.2° S, 178.3° E), Fiji, during March 2006, are presented.

Item Type: Conference Proceedings
Additional Information: Proceedings Synopsis: Studies of the propagation of Very Low Frequency (VLF) radio waves through the earth-ionospheric waveguide are being done for a long time. However, only recently it is being recognized that the amplitude and phase variations, especially the disturbances of the signal could be used to study varied effects such as solar flares, gamma ray bursts, soft gamma ray repeaters, seismic activities apart from the usual studies of tweeks, lighting induced electron precipitation etc. This conference, for the first time, focus the future of the subject in light of these new developments. DOI: 10.1063/1.3512873
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Technology and Environment (FSTE) > School of Engineering and Physics
Depositing User: Users 24 not found.
Date Deposited: 10 May 2010 20:35
Last Modified: 09 Jan 2015 15:08
URI: http://repository.usp.ac.fj/id/eprint/4555
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