Computer Science
Scientific paper
Aug 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ge%26ae..21..661l&link_type=abstract
Geomagnetizm i Aeronomiia, vol. 21, July-Aug. 1981, p. 661-667. In Russian.
Computer Science
2
Electromagnetic Noise, Geomagnetism, Ionospheric Disturbances, Magnetic Storms, Plasmasphere, Amplitudes, Magnetospheric Instability, Radiation Belts, Very Low Frequencies
Scientific paper
Amplitude variations of plasmaspheric ELF and VLF emissions in the upper ionosphere during geomagnetic storms are analyzed and compared with corresponding variations of energetic electron flux density (E not less than 40 keV). The L-max region, where the emission amplitude is highest, during magnetic storms is always within the gap between the radiation belts and the inner slope of the outer belt. During storms, L-max is displaced simultaneously with the L-prime-max region, where the particle fluxes of the outer radiation belt are most intense. On the average for many storms, the amplitude of the emissions is proportional to the Dst variations. It is concluded that the typical features of emission variations reflect restructuring processes of the magnetospheric plasma during magnetic storms: supply and losses of energetic particles in the radiation belts, displacement of the radiation belts, and displacement of the plasmapause.
Larkina V. I.
Likhter Ia. I.
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