NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Streaming reversal of energetic particles in the magnetotail during a substormA case of reversal in the streaming anisotropy of energetic ions and in the plasma flow observed from the IMP 8 spacecraft during a substorm on February 8, 1978 is studied in detail using measurements of energetic particles, plasma, and magnetic field. Four new features emerge when high time resolution data are examined in detail. The times of streaming reversal of energetic particles in different energy ranges do not coincide with the time of plasma flow reversal. Qualitatively different velocity distributions are observed in earthward and tailward plasma flows during the observed flow reversal intervals. Strong tailward streaming of energetic particles can be detected during northward magnetic field environments and, conversely, earthward streaming in southward field environments. During the period of tailward streaming of energetic particles, earthward streaming fluxes are occasionally detected.
Document ID
19840043371
Document Type
Reprint (Version printed in journal)
Authors
Lui, A. T. Y. (Iowa Univ. Iowa City, IA, United States)
Williams, D. J. (Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States)
Eastman, T. E. (Iowa Univ. Iowa City, IA, United States)
Frank, L. A. (Iowa, University Iowa City, IA, United States)
Akasofu, S.-I. (Alaska, University Fairbanks, AK, United States)
Date Acquired
August 12, 2013
Publication Date
March 1, 1984
Publication Information
Publication: Journal of Geophysical Research
Volume: 89
ISSN: 0148-0227
Subject Category
GEOPHYSICS
Funding Number(s)
CONTRACT_GRANT: NSF ATM-81-15321
CONTRACT_GRANT: NAS5-26257
CONTRACT_GRANT: NAS5-25530
CONTRACT_GRANT: NGL-16-001-002
CONTRACT_GRANT: N00024-83-C-5301
CONTRACT_GRANT: NSF ATM-83-05537
Distribution Limits
Public
Copyright
Other