Brief description
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.Lineage
Maintenance and Update Frequency: unknown
Statement: Unknown
Issued: 2011
text: westlimit=138.0; southlimit=-69.0; eastlimit=150.0; northlimit=-64.0
Subjects
AQ |
Antarctic data |
Earth Sciences |
External Publication |
Published_External |
Scientific Journal Paper |
bathymetry |
geomorphology |
geoscientificInformation |
marine |
multibeam |
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Other Information
Link to Publication
Identifiers
- DOI : 10.1017/S095410201000074X
- URI : pid.geoscience.gov.au/dataset/ga/70163
- global : a05f7892-f011-7506-e044-00144fdd4fa6