Physics
Scientific paper
Jun 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998jgr...10311725v&link_type=abstract
Journal of Geophysical Research, Volume 103, Issue A6, p. 11725-11744
Physics
30
Magnetospheric Physics: Energetic Particles, Precipitating, Trapped, Magnetospheric Physics: Mhd Waves And Instabilities, Meteorology And Atmospheric Dynamics: Lightning
Scientific paper
Lightning-induced electron precipitation (LEP) from the Earth's radiation belt has been observed on numerous occasions with detectors on the low-altitude S81-1/SEEP satellite. A sequence of seven LEP events on September 9, 1982, and eight events on October 20, 1982, are correlated on a one-to-one basis with one-hop whistlers at Palmer, Antarctica. The temporal profile within a LEP burst has a remarkable fine structure. It is shown to be associated with bunches of magnetically guided and focused 100-to-200 keV electrons that are repeatedly scattered by the atmosphere and bounce between the northern and southern hemispheres. The delay time between the lightning sferic and the arrival of the first electron bunch increases with increasing L as predicted by the first-order gyroresonance theory. The global distribution of strong LEP events observed with the SEEP payload correlates with lightning activity and shows a preferred distribution at 2
Imhof William L.
Inan Umran S.
Mobilia Joseph
Voss Henry D.
Walt Martin
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