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Detailed gravimetric geoid for the United States.A detailed gravimetric geoid was computed for the United States using a combination of satellite-derived spherical harmonic coefficients and 1 by 1 deg mean gravity values from surface gravimetry. Comparisons of this geoid with astrogeodetic geoid data indicate that a precision of plus or minus 2 meters has been obtained. Translations only were used to convert the NAD astrogeodetic geoid heights to geocentric astrogeodetic heights. On the basis of the agreement between the geocentric astrogeodetic geoid heights and the gravimetric geoid heights, no evidence is found for rotation in the North American datum. The value of the zero-order undulation can vary by 10 to 20 meters, depending on which investigator's station positions are used to establish it.
Document ID
19730029996
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Strange, W. E.
Vincent, S. F.
Berry, R. H.
(Computer Sciences Corp. Falls Church, Va., United States)
Marsh, J. G.
(NASA Goddard Space Flight Center Greenbelt, Md., United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1972
Subject Category
Geophysics
Meeting Information
Meeting: International Symposium on The use of artificial satellites for geodesy
Location: Washington, DC
Start Date: April 15, 1971
End Date: April 17, 1971
Accession Number
73A14798
Distribution Limits
Public
Copyright
Other

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