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BEDMAP ice-thickness database Entry ID: 93263573830877 |
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Summary
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Abstract:
Data describing the thickness of the Antarctic ice sheet collected on surveys undertaken over the past 50 years have been brought together into a single database. These data have allowed the compilation of a suite of seamless digital topographic models for the Antarctic continent and surrounding ocean. The suite includes grids representing: * ice-sheet thickness over the ice sheet and shelves * water-column thickness beneath the floating ice shelves * bed elevation beneath the grounded ice sheet * bathymetry to 60?S including the areas beneath the ice shelves. These grids are consistent with a recent high-resolution surface elevation model of Antarctica. While the digital models have a nominal spatial resolution of 5 km, such high resolution is not strictly justified by the original data density over all parts of the ice sheet. The suite does however provide an unparalleled vision of the geosphere beneath the ice sheet and a more reliable basis for ice sheet modelling. The bed elevation DEM, which includes the entire geosphere south of 60?S, provides an improved delineation of the boundary of the boundary between East and West Antarctica and sheds new light on the morphology of the contiguous East Antarctic landmass, much of which is buried below an average of 2500 m of ice. The database is available at the following URL: http://www.antarctica.ac.uk/index.php |
Related URL
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Link:
GET DATA
Description: Use related URL to access the home page of the BEDMAP project. Link: VIEW RELATED INFORMATION Description: Use related URL to access primary copy of metadata record from the BAS Metadata Management System. Gives detailed, up to date metadata description, which this DIF has been derived from. |
Geographic Coverage
| N: -60.0 | S: -90.0 | E: 180.0 | W: -180.0 |
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Data Set Citation
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Dataset Originator/Creator:
Lythe, M.B., Vaughan, D.G. and the BEDMAP Consortium
Dataset Title: BEDMAP - bed topography of the Antarctic Dataset Release Date: 2000 Dataset Release Place: Cambridge, UK Dataset Publisher: British Antarctic Survey Data Presentation Form: 1:10,000,000 scale map Online Resource: http://www.antarctica.ac.uk/index.php |
Temporal Coverage
| Start Date: 1951-01-01 |
Location Keywords
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CONTINENT
> ANTARCTICA
GEOGRAPHIC REGION > POLAR |
Science Keywords
| CRYOSPHERE >SNOW/ICE >ICE DEPTH/THICKNESS [Definition] |
| LAND SURFACE >TOPOGRAPHY [Definition] |
| CRYOSPHERE >GLACIERS/ICE SHEETS >GLACIER ELEVATION/ICE SHEET ELEVATION [Definition] |
ISO Topic Category
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ELEVATION
GEOSCIENTIFIC INFORMATION INLAND WATERS |
Keywords
| BEDMAP |
| ICE THICKNESS |
| BED ELEVATION |
| WATER COLUMN THICKNESS |
| BATHYMETRY |
Originating Center
| AEDC/UK |
Data Center
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Antarctic Environmental Data Centre, British Antarctic Survey, Natural Environment Research Council, United Kingdom
[Information]
Data Center URL: http://www.antarctica.ac.uk/ Dataset ID: 93263573830877 > BEDMAP
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Personnel
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AEDC BAS
DATA MANAGER Role: DIF AUTHOR Phone: +44 (0)1223 221594 Phone: +44 (0) 1223 221312 Fax: +44 (0)1223 362616 Email: aedc at bas.ac.uk Contact Address: Antarctic Environmental Data Centre British Antarctic Survey High Cross, Madingley Road City: Cambridge Province or State: Cambridgeshire Postal Code: CB3 0ET Country: UNITED KINGDOM |
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MATT
LYTHE Role: INVESTIGATOR Email: matt.lythe at bas.ac.uk Contact Address: British Antarctic Survey High Cross, Madingley Road City: Cambridge Country: United Kingdom |
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DAVID
G.
VAUGHN Role: INVESTIGATOR Email: dgv at bas.ac.uk Contact Address: British Antarctic Survey High Cross Madingley Road City: Cambridge Postal Code: CB3 0ET Country: United Kingdom |
Creation and Review Dates
DIF Creation Date:
2000-06-27
Last DIF Revision Date:
2008-10-01
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