Lightning-induced electron precipitation from the magnetosphere

Details Lightning-induced electron precipitation from the magnetosphere Lightning-induced electron precipitation from the magnetosphere

Feb 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.1531c&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Feb. 1, 1985, p. 1531-1541. Research supported by the Feischmann Foun

Physics

51

Earth Magnetosphere, Electron Precipitation, Lightning, Radiation Belts, Whistlers, Cold Plasmas, Energy Spectra, High Energy Electrons, Plasma Density, Plasma Frequencies, Plasmasphere

Scientific paper

Precipitation of radiation belt particles induced by whistlers that are generated by atmospheric lightning discharges and propagate over L shells of 2-4.5 is considered. Using a test particle model of the whistler-particle interaction, the energy spectra and temporal profile of whistler-induced fluxes as a function of L shell are quantitatively determined for a representative plasmaspheric cold plasma distribution. Results indicate that for higher energy electron precipitation (E greater than 40 keV) there exists an inner magnetospheric region (L between 2 and 3) where the level of whistler-induced precipitation can be expected to be comparatively high. Implications of this finding in terms of observational results are discussed.

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