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A relationship between synchronous altitude electron fluxes and the auroral electrojetSimultaneous observations during four substorms are reported from the Lockheed auroral particle spectrometer on ATS 5 and the University of Alberta meridian magnetometer chain. During the four events studied there was a good correlation between the magnitude of the trapped electron fluxes in the energy range from 1.8 to 53 keV and the magnitude of the electrojet current as measured by a station in the magnetometer chain at a latitude close to that expected for the ATS conjugate point. A model electrojet is constructed based on the work of Coroniti and Kennel (1972) which gives a good absolute agreement between the two measured quantities. The results are consistent with the convection electric field's remaining approximately constant during a substantial portion of each of the substorms studied. The temporal variations of the electrojet were apparently controlled by conductivity changes in the ionosphere as determined by the precipitating auroral electrons.
Document ID
19750050966
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Sharp, R. D.
Shelley, E. G.
(Lockheed Research Laboratories Palo Alto, Calif., United States)
Rostoker, G.
(Alberta, University Edmonton, Canada)
Date Acquired
August 8, 2013
Publication Date
June 1, 1975
Publication Information
Publication: Journal of Geophysical Research
Volume: 80
Subject Category
Geophysics
Accession Number
75A35038
Funding Number(s)
CONTRACT_GRANT: NASW-2656
Distribution Limits
Public
Copyright
Other

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