An experimental study of ELF/VLF hiss generation in the earth's magnetosphere

Details An experimental study of ELF/VLF hiss generation in the earth's magnetosphere An experimental study of ELF/VLF hiss generation in the earth's magnetosphere

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jgr....93.1839s&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 93, March 1, 1988, p. 1839-1847. CNRS-supported research.

Physics

34

Earth Magnetosphere, Extremely Low Frequencies, Hiss, Vlf Emission Recorders, Magnetospheric Instability, Plasmasphere, Whistlers

Scientific paper

ELF hiss generation is investigated based on simultaneous measurements of whistler-mode wave spectra in the 200-3000-Hz frequency range and electrons in the 15-300-keV energy range obtained with the GEOS 1 and 2 satellites. Inside the plasmasphere the integrated spatial gain (Gamma) of greater than 100 dB is shown to be large enough to account for the observed wave intensity in a single transit of the wave through the equatorial region. Outside the plasmasphere, Gamma ranges from 16 to 70 dB, and it is suggested that the observed wave intensities could be obtained by 2-3 transits of the waves through the equatorial region, with reflection at high latitudes.

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