Electron precipitation induced by VLF noise bursts at the plasmapause and detected at conjugate ground stations

Details Electron precipitation induced by VLF noise bursts at the plasmapause and detected at conjugate ground stations Electron precipitation induced by VLF noise bursts at the plasmapause and detected at conjugate ground stations

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.4597d&link_type=abstract

Journal of Geophysical Research, vol. 86, June 1, 1981, p. 4597-4606.

Physics

34

Electromagnetic Noise, Electron Precipitation, Plasmapause, Radio Signals, Radio Transmission, Very Low Frequencies, Amplitudes, Antarctic Regions, Broadband, Canada, Ground Stations, High Energy Electrons, Noise Spectra

Scientific paper

The observation of precipitation-induced amplitude perturbations in subionospherically propagating fixed-frequency VLF signals is considered. Simultaneous broadband VLF recordings (on magnetic tape in analog form) were made at Siple, Antarctica, and at its magnetic conjugate Roberval, Quebec, on September 11, 1973. These stations detected a series of approximately 20 VLF noise bursts and correlated amplitude perturbations of 17.8-kHz signals from the U.S. Navy VLF transmitter NAA (Cutler, ME). The noise bursts were found to occur at intervals of roughly 5 min over a several-hour period. Examples of individual bursts are shown. Two basic wave structures were observed, including a main body of each burst and, in some cases, a precursor noise band.

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