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Present-day secular variations in the zonal harmonics of earth's geopotentialThe mathematical formulation required for predicting secular variation in the geopotential is developed for the case of a spherically symmetric, self-gravitating, viscoelastic earth model and an arbitrary surface load which can include a gravitational self-consistent ocean loading component. The theory is specifically applied to predict the present-day secular variation in the zonal harmonics of the geopotenial arising from the surface mass loading associated with the late Pleistocene glacial cycles. A procedure is outlined in which predictions of the present-day geopotential signal due to the late Pleistocene glacial cycles may be used to derive bounds on the net present-day mass flux from the Antarctic and Greenland ice sheets to the local oceans.
Document ID
19930049208
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Mitrovica, J. X.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Peltier, W. R.
(Toronto Univ. Canada)
Date Acquired
August 16, 2013
Publication Date
March 10, 1993
Publication Information
Publication: Journal of Geophysical Research
Volume: 98
Issue: B3
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
93A33205
Funding Number(s)
CONTRACT_GRANT: NSERC-A-9627
CONTRACT_GRANT: NAG5-1930
Distribution Limits
Public
Copyright
Other

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