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Differential Rotation within the Earth's Outer CoreNon-steady differential rotation drive by bouyancy forces within the Earth's liquid outer core (OC) plays a key role not only in the generation of the main geomagnetic field by the magnetohydrodynamic (MHD) dynamo process but also in the excitation of irregular fluctuations in the angular speed of rotation of the overlying solid mantle, as evidenced by changes in the length of the day (LOD) on decadal and longer timescales (1-8).
Document ID
20060041190
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Hide, R.
Boggs, D. H.
Dickey, J. O.
Date Acquired
August 23, 2013
Publication Date
March 1, 1998
Publication Information
Publication: Nature
Distribution Limits
Public
Copyright
Other
Keywords
outer core differential rotation bouyancy force