Physics
Scientific paper
Dec 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....9012183b&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Dec. 1, 1985, p. 12,183-12,194. Research supported by the Department
Physics
5
Earth Magnetosphere, Emission Spectra, Low Altitude, Magnetohydrodynamic Stability, Satellite Transmission, Very Low Frequencies, Earth Ionosphere, Geomagnetism, Signal Transmission, Spectrograms, Wave Propagation
Scientific paper
The present paper has the objective to report the existence of a new phenomenon in which coherent VLF signals from the Siple Station VLF transmitter (Antarctica, 76 deg S, 84 deg W) are observed to trigger a new type of VLF emission, taking into account the propagation of these signals upward through the ionosphere and low-altitude magnetosphere to the ISIS 2 satellite at 1400 km altitude. The existence of the impulsive emission (IE) effect lends credence to the idea that coherent VLF signals can act as catalysts to trigger natural plasma instabilities in the subauroral ionosphere and lower magnetosphere. Controlled studies of these instabilities may, therefore, be possible.
Bell Timothy F.
James Gordon H.
Katsufrakis J. P.
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