Publicou 12 edições por ano
ISSN Imprimir: 0040-2508
ISSN On-line: 1943-6009
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Low Frequency Whistlers Generated in the Lower Ionosphere During Strong Thunderstorms
RESUMO
Methods of determination whistler frequencies generated by the infrasound in E- and F-regions of the ionosphere near the strong thunderstorm epicentre in the Earth atmosphere are proposed. Experimentally, using methods of the vertical Doppler sounding and partial reflections, it has been confirmed the principle that the during a strong thunderstorm, near the epicentre, generating of infrasonic waves of f 1 ~ 0.4-0.8 Hz which spread up to the ionospheric F-region heights is possible. On the basis of both the infrasonic waves trans-formed in the ionosphere into the low frequency whistlers and the dispersion relations, the whistler frequencies were found to be f3 ~ 7-29 kHz, which agrees closely with the theo-retical calculations.