Physics
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992geoji.109..437s&link_type=abstract
Geophysical Journal International (ISSN 0956-540X), vol. 109, no. 2, May 1992, p. 437-448.
Physics
46
Antarctic Regions, Celestial Geodesy, Earth Gravitation, Gravity Anomalies, Ocean Bottom, Satellite Altimetry, Geodetic Satellites, Geoids, Geosat Satellites, Gravimetry, Gravitational Fields, Laplace Equation
Scientific paper
High-density (about 2-km profile spacing) Geosat/GM altimetry profiles were obtained for Antarctic waters (6-deg S to 72 deg S) and converted to vertical gravity gradient, using Laplace's equation to directly calculate gravity gradient from vertical deflection grids and Fourier analysis to construct gravity anomalies from two vertical deflection grids. The resultant gravity grids have resolution and accuracy comparable to shipboard gravity profiles. The obtained gravity maps display many interesting and previously uncharted features, such as a propagating rift wake and a large 'leaky transform' along the Pacific-Antarctic Rise.
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