Data

A New High-resolution Depth Model for the Terre Adélie and George V Shelf and Margin, East Antarctica

Australian Ocean Data Network
Beaman, R.J. ; O'Brien, P.E. ; Post, A.L. ; De Santis, L.
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/70163&rft.title=A New High-resolution Depth Model for the Terre Adélie and George V Shelf and Margin, East Antarctica&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/70163&rft.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.Maintenance and Update Frequency: unknownStatement: Unknown&rft.creator=Beaman, R.J. &rft.creator=O'Brien, P.E. &rft.creator=Post, A.L. &rft.creator=De Santis, L. &rft.date=2011&rft.coverage=westlimit=138.0; southlimit=-69.0; eastlimit=150.0; northlimit=-64.0&rft.coverage=westlimit=138.0; southlimit=-69.0; eastlimit=150.0; northlimit=-64.0&rft_rights=&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=http://creativecommons.org/licenses/&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Australian Government Security ClassificationSystem&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=External Publication&rft_subject=Scientific Journal Paper&rft_subject=multibeam&rft_subject=Antarctic data&rft_subject=geomorphology&rft_subject=bathymetry&rft_subject=marine&rft_subject=AQ&rft_subject=EARTH SCIENCES&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International Licence
http://creativecommons.org/licenses/by/4.0

Creative Commons Attribution 4.0 International Licence

CC-BY

4.0

http://creativecommons.org/licenses/

WWW:LINK-1.0-http--link

Australian Government Security ClassificationSystem

https://www.protectivesecurity.gov.au/Pages/default.aspx

WWW:LINK-1.0-http--link

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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.

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Maintenance and Update Frequency: unknown
Statement: Unknown

Issued: 2011

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150,-64 150,-69 138,-69 138,-64 150,-64

144,-66.5

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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Link to Publication

doi : http://dx.doi.org/10.1017/S095410201000074X

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