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Investigation of mechanisms for the source and loss of electrons from the radiation belts using data from SEEP, SCATHA and P78-1 satellites. Final report May 88-Nov 91

Technical Report ·
OSTI ID:5903207
; ; ;
Electron precipitation into the atmosphere entails ionospheric effects that have important consequences for radiowave propagation. Under this contract satellite data as well as ground based measurements have been used to evaluate the source and loss mechanisms for electrons trapped in the radiation belts. With data from the SEEP satellite payload a study was made of short duration (<0.6 sec) microbursts of electrons from the radiation belts. Several of the electron bursts observed at nighttime were correlated with lightning generated whistlers. A seasonal variation was found for the occurrence in precipitating inner belt electrons with peaks in the energy spectra. The fluxes of relativistic electrons precipitating into the atmosphere were found to be correlated with the fluxes of relativistic electrons at high altitudes. To investigate whether wave-particle interactions are responsible for triggering relativistic electron microbursts an examination was made of wave data recorded at Siple Station at times when the SEEP satellite was near Siple or its conjugate point. The wave data indicate that many of the bursts may not be due to wave-particle interactions.
Research Organization:
Lockheed Missiles and Space Co., Palo Alto, CA (United States). Space Sciences Lab.
OSTI ID:
5903207
Report Number(s):
AD-A-243376/1/XAB; CNN: N00014-88-C-0033
Country of Publication:
United States
Language:
English

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Related Subjects

661320* -- Auroral
Ionospheric
&amp; Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHARGED-PARTICLE PRECIPITATION
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
ELECTRON PRECIPITATION
ELECTRONS
ELEMENTARY PARTICLES
ENERGY SPECTRA
FERMIONS
INTERACTIONS
IONOSPHERE
LEPTONS
LOSSES
NOISE
PARTICLE LOSSES
PLANETARY IONOSPHERES
RADIATION BELTS
RADIATIONS
RADIO NOISE
RADIOWAVE RADIATION
SATELLITES
SEASONAL VARIATIONS
SPECTRA
TRAPPED ELECTRONS
VARIATIONS
WAVE PROPAGATION
WHISTLERS