Low Dispersion Whistlers Observed Simultaneously at Two Low Latitude Stations

Low Dispersion Whistlers Observed Simultaneously at Two Low Latitude Stations

Employing the Haselgrove ray tracing equations and a diffusive equilibrium model of the ionosphere, the propagation characteristics of low dispersion whistlers observed simultaneously at low-latitude ground stations Gulmarg (geomag. lat. 24°10′N) and Naini Tal (geomag. lat. 19°1′N), are discussed. I...

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Veröffentlicht in:Journal of geomagnetism and geoelectricity 1972, Vol.24(3), pp.277-287
Hauptverfasser: SINGH, Birbal, MISHRA, S. N., TANTRY, B. A. P.
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container_end_page 287
container_issue 3
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container_title Journal of geomagnetism and geoelectricity
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creator SINGH, Birbal
MISHRA, S. N.
TANTRY, B. A. P.
description Employing the Haselgrove ray tracing equations and a diffusive equilibrium model of the ionosphere, the propagation characteristics of low dispersion whistlers observed simultaneously at low-latitude ground stations Gulmarg (geomag. lat. 24°10′N) and Naini Tal (geomag. lat. 19°1′N), are discussed. It is shown that these whistlers are caused by the VLF waves which were radiated from the return stroke of a lightning discharge, penetrated the ionosphere at two different entry points, propagated to the opposite hemisphere in the whistler mode and received at 19° and 24° geomagnetic latitudes. The lower and higher cut-off frequencies are explained in terms of their deviating away from the bunch of the recorded whistler waves.
doi_str_mv 10.5636/jgg.24.277
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title Low Dispersion Whistlers Observed Simultaneously at Two Low Latitude Stations
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