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Geoid height versus topography for oceanic plateaus and swellsGridded geoid height data (Marsh et al.l, 1986) and gridded bathymetry data (Van Wykhouse, 1973) are used to estimate the average compensation depths of 53 oceanic swells and plateaus. The relationship between geoid height and topography is examined using Airy and thermal compensation models. It is shown that geoid height is linearly related to topography between wavelengths of 400 and 4000 m as predicted by isostatic compensation models. The geoid/topography ratio is dependent on the average depth of compensation. The intermediate geoid/topography ratios of most thermal swells are interpreted as a linear combination of the decaying thermal swell signature and that of the persisting Airy-compensated volcanic edifice.
Document ID
19890056768
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Sandwell, David T.
(Texas Univ. Austin, TX, United States)
Mackenzie, Kevin R.
(Texas, University Austin, United States)
Date Acquired
August 14, 2013
Publication Date
June 10, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
89A44139
Funding Number(s)
CONTRACT_GRANT: NAG5-787
Distribution Limits
Public
Copyright
Other

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