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On the relationship between the energetic particle flux morphology and the change in the magnetic field magnitude during substormsThe relationship between the morphology of energetic particle substorm injections and the change in the magnetic field magnitude over the course of the event is examined. Using the statistical relationships between the magnetic field during the growth phase and the change in the field magnitude during substorms calculated by Lopez et al. (1988), a limited number of dispersionless ion injections observed by AMPTE CCE are selected. It is argued that this limited set is representative of a large set of events and that the conclusions drawn from examining those events are valid for substorms in general in the inner magnetosphere. It is demonstrated that in an event when CCE directly observed the disruption of the current sheet, the particle and field data show that the region of particle acceleration was highly turbulent and was temporally, and perhaps spatially, limited and that the high fluxes of energetic particles are qualitatively associated with intense inductive electric fields.
Document ID
19900033691
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lopez, R. E.
(Johns Hopkins Univ. Laurel, MD, United States)
Lui, A. T. Y.
(Johns Hopkins Univ. Laurel, MD, United States)
Sibeck, D. G.
(Johns Hopkins Univ. Laurel, MD, United States)
Takahashi, K.
(Johns Hopkins Univ. Laurel, MD, United States)
Mcentire, R. W.
(Johns Hopkins University Laurel, MD, United States)
Date Acquired
August 14, 2013
Publication Date
December 1, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
90A20746
Funding Number(s)
CONTRACT_GRANT: N00039-87-C-5301
Distribution Limits
Public
Copyright
Other

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