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Simulation of proton radiation belt formation during the March 24, 1991 SSCThe rapid formation of a new proton radiation belt at L approximately = 2.5 following the March 24, 1991 Storm Sudden Commencement (SSC) observed at the Combined Release and Radiation Effects Satellite (CRRES) satellite is modeled using a relativistic guiding center test particle code. The SSC is modeled by a bipolar electric field and associated compression and relaxation in the magnetic field, superimposed on a dipole magnetic field. The source population consists of both solar and trapped inner zone protons. The simulations show that while both populations contribute to drift echoes in the 20-80 MeV range, primary conditions is from the solar protons. Proton acceleration by the SSC differs from relativistic electron acceleration in that different source populations contribute and nonrelativistic conservation of the first adiabatic invariation leads to greater energization of protons for a given decrease in L. Model drift echoes and flux distribution in L at the time of injection compare well with CRRES observations.
Document ID
19950045295
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Hudson, M. K.
(Dartmouth College, Hanover, NH United States)
Kotelnikov, A. D.
(Dartmouth College, Hanover, NH United States)
Li, X.
(Dartmouth College, Hanover, NH United States)
Roth, I.
(Univ. of California, Berkeley, CA United States)
Temerin, M.
(Univ. of California, Berkeley, CA United States)
Wygant, J.
(Univ. of Minnesota MN, United States)
Blake, J. B.
(The Aerospace Corporation Los Angeles, CA, United States)
Gussenhoven, M. S.
(Philips Laboratory, Hanscom AFB, MA United States)
Date Acquired
August 16, 2013
Publication Date
February 1, 1995
Publication Information
Publication: Geopysical Research Letters
Volume: 22
Issue: 3
ISSN: 0094-8276
Subject Category
Geophysics
Accession Number
95A76894
Funding Number(s)
CONTRACT_GRANT: NAG5-1098
CONTRACT_GRANT: F04701-88-C-0089
CONTRACT_GRANT: F19628-92-K-0009
CONTRACT_GRANT: F19628-87-K-0016
CONTRACT_GRANT: AF-AFOSR-F49620-93-1-0101
Distribution Limits
Public
Copyright
Other

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