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On the minimum variance direction of magnetic field fluctuations in the azimuthal velocity structure of the solar windThe paper examines the properties of microscale magnetic field fluctuations for diverse classes of large-scale azimuthal velocity structures in the solar wind, with particular reference to the orientation of the wave normal vector for MHD waves in the interplanetary medium. It is shown that the direction of minimum variance does not exhibit any characteristic refraction pattern with respect to large-scale velocity structures in the solar wind. It is suggested that the direction of minimum variance is not indicative of the wave normal vector directions. The determination of the wave normal vector directions for the predominantly transverse MHD waves in the interplanetary medium is presently beyond the capability of single spacecraft observations.
Document ID
19760062498
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Solodyna, C. V.
(American Science and Engineering, Inc. Cambridge, Mass., United States)
Belcher, J. W.
(MIT Cambridge, Mass., United States)
Date Acquired
August 8, 2013
Publication Date
September 1, 1976
Publication Information
Publication: Geophysical Research Letters
Volume: 3
Subject Category
Solar Physics
Accession Number
76A45464
Funding Number(s)
CONTRACT_GRANT: NGL-22-009-915
Distribution Limits
Public
Copyright
Other

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