New boundary conditions for the West Antarctic ice sheet: subglacial topography beneath Thwaites and Smith glaciers catchments
Airborne radar sounding over the Thwaites Glacier (TG) catchment and its surroundings provides the first comprehensive view of subglacial topography in this dynamic part of the West Antarctic Ice Sheet (WAIS) and reveals that TG is underlain by a single, broad basin fed by a dendritic pattern of val...
Published in: | Geophysical Research Letters |
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American Geophysical Union
2006
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Online Access: | http://nora.nerc.ac.uk/id/eprint/63/ http://www.agu.org/journals/gl/gl0609/2005GL025561/ https://doi.org/10.1029/2005GL025561 |
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ftnerc:oai:nora.nerc.ac.uk:63 2024-06-09T07:41:00+00:00 New boundary conditions for the West Antarctic ice sheet: subglacial topography beneath Thwaites and Smith glaciers catchments Holt, John W. Blankenship, Donald D. Morse, David Young, Duncan A. Peters, Matthew E. Kempf, Scott D. Richter, Thomas G. Vaughan, David Corr, Hugh F.J. 2006 http://nora.nerc.ac.uk/id/eprint/63/ http://www.agu.org/journals/gl/gl0609/2005GL025561/ https://doi.org/10.1029/2005GL025561 unknown American Geophysical Union Holt, John W.; Blankenship, Donald D.; Morse, David; Young, Duncan A.; Peters, Matthew E.; Kempf, Scott D.; Richter, Thomas G.; Vaughan, David orcid:0000-0002-9065-0570 Corr, Hugh F.J. 2006 New boundary conditions for the West Antarctic ice sheet: subglacial topography beneath Thwaites and Smith glaciers catchments. Geophysical Research Letters, 33 (9), L09502. 4, pp. https://doi.org/10.1029/2005GL025561 <https://doi.org/10.1029/2005GL025561> Glaciology Publication - Article PeerReviewed 2006 ftnerc https://doi.org/10.1029/2005GL025561 2024-05-15T08:39:04Z Airborne radar sounding over the Thwaites Glacier (TG) catchment and its surroundings provides the first comprehensive view of subglacial topography in this dynamic part of the West Antarctic Ice Sheet (WAIS) and reveals that TG is underlain by a single, broad basin fed by a dendritic pattern of valleys, while Smith Glacier lies within an extremely deep, narrow trench. Subglacial topography in the TG catchment slopes inland from a broad, low-relief coastal sill to the thickest ice of the WAIS and makes deep connections to both Pine Island Glacier and the Ross Sea Embayment enabling dynamic interactions across the WAIS during deglaciation. Simple isostatic rebound modeling shows that most of this landscape would be submarine after deglaciation, aside from an island chain near the present-day Ross-Amundsen ice divide. The lack of topographic confinement along TG's eastern margin implies that it may continue to widen in response to grounding line retreat. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Pine Island Glacier Ross Sea Smith Glacier Thwaites Glacier Natural Environment Research Council: NERC Open Research Archive Antarctic Ross Sea West Antarctic Ice Sheet Pine Island Glacier ENVELOPE(-101.000,-101.000,-75.000,-75.000) Thwaites Glacier ENVELOPE(-106.750,-106.750,-75.500,-75.500) Geophysical Research Letters 33 9 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Glaciology |
spellingShingle |
Glaciology Holt, John W. Blankenship, Donald D. Morse, David Young, Duncan A. Peters, Matthew E. Kempf, Scott D. Richter, Thomas G. Vaughan, David Corr, Hugh F.J. New boundary conditions for the West Antarctic ice sheet: subglacial topography beneath Thwaites and Smith glaciers catchments |
topic_facet |
Glaciology |
description |
Airborne radar sounding over the Thwaites Glacier (TG) catchment and its surroundings provides the first comprehensive view of subglacial topography in this dynamic part of the West Antarctic Ice Sheet (WAIS) and reveals that TG is underlain by a single, broad basin fed by a dendritic pattern of valleys, while Smith Glacier lies within an extremely deep, narrow trench. Subglacial topography in the TG catchment slopes inland from a broad, low-relief coastal sill to the thickest ice of the WAIS and makes deep connections to both Pine Island Glacier and the Ross Sea Embayment enabling dynamic interactions across the WAIS during deglaciation. Simple isostatic rebound modeling shows that most of this landscape would be submarine after deglaciation, aside from an island chain near the present-day Ross-Amundsen ice divide. The lack of topographic confinement along TG's eastern margin implies that it may continue to widen in response to grounding line retreat. |
format |
Article in Journal/Newspaper |
author |
Holt, John W. Blankenship, Donald D. Morse, David Young, Duncan A. Peters, Matthew E. Kempf, Scott D. Richter, Thomas G. Vaughan, David Corr, Hugh F.J. |
author_facet |
Holt, John W. Blankenship, Donald D. Morse, David Young, Duncan A. Peters, Matthew E. Kempf, Scott D. Richter, Thomas G. Vaughan, David Corr, Hugh F.J. |
author_sort |
Holt, John W. |
title |
New boundary conditions for the West Antarctic ice sheet: subglacial topography beneath Thwaites and Smith glaciers catchments |
title_short |
New boundary conditions for the West Antarctic ice sheet: subglacial topography beneath Thwaites and Smith glaciers catchments |
title_full |
New boundary conditions for the West Antarctic ice sheet: subglacial topography beneath Thwaites and Smith glaciers catchments |
title_fullStr |
New boundary conditions for the West Antarctic ice sheet: subglacial topography beneath Thwaites and Smith glaciers catchments |
title_full_unstemmed |
New boundary conditions for the West Antarctic ice sheet: subglacial topography beneath Thwaites and Smith glaciers catchments |
title_sort |
new boundary conditions for the west antarctic ice sheet: subglacial topography beneath thwaites and smith glaciers catchments |
publisher |
American Geophysical Union |
publishDate |
2006 |
url |
http://nora.nerc.ac.uk/id/eprint/63/ http://www.agu.org/journals/gl/gl0609/2005GL025561/ https://doi.org/10.1029/2005GL025561 |
long_lat |
ENVELOPE(-101.000,-101.000,-75.000,-75.000) ENVELOPE(-106.750,-106.750,-75.500,-75.500) |
geographic |
Antarctic Ross Sea West Antarctic Ice Sheet Pine Island Glacier Thwaites Glacier |
geographic_facet |
Antarctic Ross Sea West Antarctic Ice Sheet Pine Island Glacier Thwaites Glacier |
genre |
Antarc* Antarctic Ice Sheet Pine Island Glacier Ross Sea Smith Glacier Thwaites Glacier |
genre_facet |
Antarc* Antarctic Ice Sheet Pine Island Glacier Ross Sea Smith Glacier Thwaites Glacier |
op_relation |
Holt, John W.; Blankenship, Donald D.; Morse, David; Young, Duncan A.; Peters, Matthew E.; Kempf, Scott D.; Richter, Thomas G.; Vaughan, David orcid:0000-0002-9065-0570 Corr, Hugh F.J. 2006 New boundary conditions for the West Antarctic ice sheet: subglacial topography beneath Thwaites and Smith glaciers catchments. Geophysical Research Letters, 33 (9), L09502. 4, pp. https://doi.org/10.1029/2005GL025561 <https://doi.org/10.1029/2005GL025561> |
op_doi |
https://doi.org/10.1029/2005GL025561 |
container_title |
Geophysical Research Letters |
container_volume |
33 |
container_issue |
9 |
_version_ |
1801369405134733312 |