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AMPTE/CCE observations of substorm-associated standing Alfven waves in the midnight sectorMagnetic-field and medium-energy particle data from the AMPTE/CCE spacecraft are used to study substorm-associated ULF pulsations in the midnight sector at a radial distance of 8 to 9 earth radii. The particle data are used to identify ion injections and to detect the electric field of ULF waves. A case study of the events on May 23, 1985 shows that the waves have the properties of a fundamental-mode standing Alfven wave. It is suggested that these observations are evidence of substorm-associated standing Alfven waves in the nightside magnetosphere.
Document ID
19890026596
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Takahashi, K.
(Johns Hopkins Univ. Laurel, MD, United States)
Mcentire, R. W.
(Johns Hopkins Univ. Laurel, MD, United States)
Potemra, T. A.
(Johns Hopkins University Laurel, MD, United States)
Kokubun, S.
(Tokyo, University Japan)
Sakurai, T.
(Tokai University Hiratsuka, Japan)
Date Acquired
August 14, 2013
Publication Date
October 1, 1988
Publication Information
Publication: Geophysical Research Letters
Volume: 15
ISSN: 0094-8276
Subject Category
Geophysics
Accession Number
89A13967
Funding Number(s)
CONTRACT_GRANT: N00039-87-C-5301
Distribution Limits
Public
Copyright
Other

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