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Earth's variable rotationRecent improvements in geodetic data and practical meteorology have advanced research on fluctuations in the earth's rotation. The interpretation of these fluctuations is inextricably linked with studies of the dynamics of the earth-moon system and dynamical processes in the liquid metallic core of the earth (where the geomagnetic field originates), other parts of the earth's interior, and the hydrosphere and atmosphere. Fluctuations in the length of the day occurring on decadal time scales have implications for the topographay of the core-mantle boundary and the electrical, magnetic, ande other properties of the core and lower mantle. Investigations of more rapid fluctuations bear on meteorological studies of interannual, seasonal, and intraseasonal variations in the general circulation of the atmosphere and the response of the oceans to such variations.
Document ID
19910064575
Document Type
Reprint (Version printed in journal)
Authors
Hide, Raymond
(Oxford, University Observatory, United Kingdom)
Dickey, Jean O.
(JPL Pasadena, CA, United States)
Date Acquired
August 14, 2013
Publication Date
August 9, 1991
Publication Information
Publication: Science
Volume: 253
ISSN: 0036-8075
Subject Category
Geophysics
Distribution Limits
Public
Copyright
Other
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