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Antarctic marine gravity field from high-density satellite altimetry
- Source :
- Geophysical Journal International. 109(2 Ma)
- Publication Year :
- 1992
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1992.
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Abstract
- 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.
- Subjects :
- Geophysics
Subjects
Details
- Language :
- English
- ISSN :
- 0956540X
- Volume :
- 109
- Issue :
- 2 Ma
- Database :
- NASA Technical Reports
- Journal :
- Geophysical Journal International
- Notes :
- N00014-91-J-1642, , NAG1-266
- Publication Type :
- Report
- Accession number :
- edsnas.19920054076
- Document Type :
- Report