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The equilibrium dayside magnetosphereA method is presented of computing the dayside global earth magnetic field which is in equilibrium with the plasma pressure, based on satellite observations at a local region of the magnetosphere. The method, which utilizes a perturbation around a dipole magnetic field, involves computation of the global plasma pressure profile based on the equatorial (anisotropic) pressure data, derivation of the current profile which satisfies the equilibrium condition, and computation of the magnetic field using the current profile and the boundary current produced by the solar wind. The method is applied for the Active Magnetospheric Particle Tracer Explorers data, and the result of the computation is found to compare reasonably well with the observed magnetic field profile near the geomagnetic equator.
Document ID
19890059893
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Zavriyev, Anton
(Columbia University New York, United States)
Hasegawa, Akira
(AT&T Bell Laboratories Murray Hill, NJ, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
89A47264
Funding Number(s)
CONTRACT_GRANT: NAGW-894
Distribution Limits
Public
Copyright
Other

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