Altimetry, ship gravimetry, and the general circulation of the North Atlantic

Journal Article · Fri Sep 01 04:00:00 EDT 1989 · Geophysical Research Letters (American Geophysical Union); (USA)

DOI:https://doi.org/10.1029/GL016i009p01011· OSTI ID:5667969

Zlotnicki, V ^[1]; Marsh, J G ^[2]

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1. California Inst. of Tech., Pasadena (USA)
2. NASA Goddard Space Flight Center, Greenbelt, MD (USA)

Gravity accelerations estimated from satellite altimetric mean sea surfaces (Seasat and Geos-3) are compared to ship gravity measurements. Ship gravityare closer to an estimate based on least squares collocation, orbit perturbations, altimetry and terrestrial gravity than to an estimate based on Fourier transforms, orbit perturbations and altimetry only. Both altimetric estimates yield a smoothed picture of the geostrophic component of sea surface currents in the North Atlantic when gravity acceleration data from only nine cruises are subtracted from the altimetric gravity.

• OSTI ID: 5667969
• Journal Information: Geophysical Research Letters (American Geophysical Union); (USA), Journal Name: Geophysical Research Letters (American Geophysical Union); (USA) Vol. 16:9; ISSN 0094-8276; ISSN GPRLA
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
580000* -- Geosciences
ALTIMETERS
ATLANTIC OCEAN
COMPARATIVE EVALUATIONS
CURRENTS
EARTH PLANET
GEOS SATELLITES
GRAVITATION
MEASURING INSTRUMENTS
NORTHERN HEMISPHERE
OCEANIC CIRCULATION
OCEANOGRAPHY
ORBITS
PLANETS
REMOTE SENSING
SATELLITES
SEA BED
SEAS
SEASAT SATELLITES
SHIPS
SURFACE WATERS
TOPOGRAPHY
WATER CURRENTS