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Observations of intense ULF pulsation activity near the geomagnetic equator during quiet timesThis paper analyzes observations, made by particle and field instruments on the AMPTE CCE satellite, of intense ULF pulsations in the earth's magnetosphere near the geomagnetic equator. These pulsations were observed during magnetically quiet periods in regions characterized by intense fluxes of warm strongly trapped light ions, predominantly H(+), and often with streaming low-energy plasma. The strong latitudinal localization of these pulsations is interpreted to be due to equatorial mass loading or to partial reflection of Alfven wave energy by latitudinal gradients in plasma density. Possible sources of wave energy for these events are discussed.
Document ID
19890029992
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Engebretson, M. J.
(Johns Hopkins Univ. Laurel, MD, United States)
Zanetti, L. J.
(Johns Hopkins Univ. Laurel, MD, United States)
Potemra, T. A.
(Johns Hopkins University Laurel, MD, United States)
Klumpar, D. M.
(Lockheed Research Laboratories Palo Alto, CA, United States)
Strangeway, R. J.
(California, University Los Angeles, United States)
Acuna, M. H.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
November 1, 1988
Publication Information
Publication: Journal of Geophysical Research
Volume: 93
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
89A17363
Funding Number(s)
CONTRACT_GRANT: NSF ATM-86-06388
CONTRACT_GRANT: NAG5-863
CONTRACT_GRANT: N00025-83-C-5301
CONTRACT_GRANT: NAS5-38796
Distribution Limits
Public
Copyright
Other

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