Authors / CoAuthors
Beaman, R.J. | O'Brien, P.E. | Post, A.L. | De Santis, L.
Abstract
Abstract: The Collaborative East Antarctic Marine Census (CEAMARC) surveys to the Terre Adélie and George V shelf and margin highlight the requirement for a revised high resolution depth model that can be used as a spatial tool for improving physical models of the region. We have combined available shiptrack and multibeam bathymetry, coastline and land topographic data to develop a new high-resolution depth model, called GVdem. GVdem spans an area 138°E to 148°E longitude and 63°S to 69°S latitude, with a choice of three ESRI grids with cell pixel sizes: 15 arcsec, 9 arcsec and 3.6 arcsec. The revised depth model is an improvement over previously available regional-scale grids, and highlights seabed physiographic detail not previously observed for this part of East Antarctica. In particular, the extent and complexity of the inner-shelf depressions are revealed and their relationship with large shelf basins and adjacent flat-topped banks.
Product Type
nonGeographicDataset
eCat Id
70163
Contact for the resource
Custodian
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Custodian
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Digital Object Identifier
Keywords
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- External PublicationScientific Journal Paper
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- multibeam
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- Antarctic data
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- geomorphology
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- bathymetry
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- marine
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- AQ
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_External
Publication Date
2011-01-01T00:00:00
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unknown
Topic Category
geoscientificInformation
Series Information
23
Lineage
Unknown
Parent Information
Extents
[-69.0, -64.0, 138.0, 150.0]
Reference System
Spatial Resolution
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