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Compressional ULF waves in the outer magnetosphere. I - Statistical studyStatistical properties of the ULF waves of period 2-20 min in the outer magnetosphere were studied using 14 months of magnetic field and plasma data obtained by the ISEE 1 and 2 spacecraft. It was found that intense compressional waves with typical wave periods of 10 min are a persistent feature near the two flanks of the magnetosphere; they are mainly polarized in a meridian plane with comparable compressional and transverse amplitudes and have larger amplitudes at higher latitudes. Transverse waves polarized in the azimuthal direction are found to be mainly a nightside phenomenon, and they seem to be associated with substorm activity.
Document ID
19920029444
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Zhu, Xiaoming
(Chicago, University IL, United States)
Kivelson, Margaret G.
(California, University Los Angeles, United States)
Date Acquired
August 15, 2013
Publication Date
November 1, 1991
Publication Information
Publication: Journal of Geophysical Research
Volume: 96
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
92A12068
Funding Number(s)
CONTRACT_GRANT: NSF ATM-89-13342
CONTRACT_GRANT: NSF ATM-86-10858
CONTRACT_GRANT: NAGW-2122
Distribution Limits
Public
Copyright
Other

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