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The gravity field in the central Pacific from satellite-to-satellite trackingSatellite-to-satellite Doppler tracking between the ATS 6 and the GEOS 3 spacecraft was used to measure the high-degree and high-order gravity field over an 80-deg region in the central Pacific Ocean. Forty passes of GEOS 3/ATS 6 Doppler data have been analyzed. The precision of these range rate data is about 0.3 mm/s, and the line-of-sight gravity anomalies recovered from these data have a precision of about 0.2 mGal at the GEOS 3 altitude of about 840 km. In general, the agreement between the SST-derived map and the conventional GEM method and an altimeter-derived geoid is good. Eight significant positive gravity anomalies were exposed in the central Pacific. Generally speaking, the anomalies form a roughly east-west pattern of alternating sign in the central region, and near the East Pacific they strike about north and south.
Document ID
19810051457
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Marsh, J. G.
(NASA Goddard Space Flight Center Geodynamics Branch, Greenbelt, Md., United States)
Marsh, B. D.
(Johns Hopkins University Baltimore, Md., United States)
Williamson, R. G.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Wells, W. T.
(EG & G Washington Analytical Services Center Inc., Riverdale, Md., United States)
Date Acquired
August 11, 2013
Publication Date
May 10, 1981
Publication Information
Publication: Journal of Geophysical Research
Volume: 86
Subject Category
Geophysics
Accession Number
81A35861
Funding Number(s)
CONTRACT_GRANT: NCC5-1
Distribution Limits
Public
Copyright
Other

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