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Geoid Anomalies and the Near-Surface Dipole Distribution of MassAlthough geoid or surface gravity anomalies cannot be uniquely related to an interior distribution of mass, they can be related to a surface mass distribution. However, over horizontal distances greater than about 100 km, the condition of isostatic equilibrium above the asthenosphere is a good approximation and the total mass per unit column is zero. Thus the surface distribution of mass is also zero. For this case we show that the surface gravitational potential anomaly can be uniquely related to a surface dipole distribution of mass. Variations in the thickness of the crust and lithosphere can be expected to produce undulations in the geoid.
Document ID
19790013326
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Turcotte, D. L. (Cornell Univ. Ithaca, NY, United States)
Ockendon, J. R. (Oxford Univ.)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Publication Information
Publication: Ohio State Univ. Appl. of Geodesy to Geodyn., an Intern. Symp.
Subject Category
Geophysics
Accession Number
79N21497
Funding Number(s)
CONTRACT_GRANT: NSG-5060
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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