Mid-Holocene pulse of thinning in the Weddell Sea sector of the West Antarctic ice sheet
Establishing the trajectory of thinning of the West Antarctic ice sheet (WAIS) since the last glacial maximum (LGM) is important for addressing questions concerning ice sheet (in)stability and changes in global sea level. Here we present detailed geomorphological and cosmogenic nuclide data from the...
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Online Access: | https://nrl.northumbria.ac.uk/id/eprint/27602/ https://doi.org/10.1038/ncomms12511 https://nrl.northumbria.ac.uk/id/eprint/27602/1/NatCommsHoloceneProofs.pdf https://nrl.northumbria.ac.uk/id/eprint/27602/2/ncomms12511.pdf |
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ftunivnorthumb:oai:nrl.northumbria.ac.uk:27602 2023-05-15T13:56:54+02:00 Mid-Holocene pulse of thinning in the Weddell Sea sector of the West Antarctic ice sheet Hein, Andrew Marrero, Shasta Woodward, John Dunning, Stuart Winter, Kate Westoby, Matt Freeman, Stewart Shanks, Richard Sugden, David 2016-08-22 text https://nrl.northumbria.ac.uk/id/eprint/27602/ https://doi.org/10.1038/ncomms12511 https://nrl.northumbria.ac.uk/id/eprint/27602/1/NatCommsHoloceneProofs.pdf https://nrl.northumbria.ac.uk/id/eprint/27602/2/ncomms12511.pdf en eng Nature Publishing https://nrl.northumbria.ac.uk/id/eprint/27602/1/NatCommsHoloceneProofs.pdf https://nrl.northumbria.ac.uk/id/eprint/27602/2/ncomms12511.pdf Hein, Andrew, Marrero, Shasta, Woodward, John, Dunning, Stuart, Winter, Kate, Westoby, Matt, Freeman, Stewart, Shanks, Richard and Sugden, David (2016) Mid-Holocene pulse of thinning in the Weddell Sea sector of the West Antarctic ice sheet. Nature Communications, 7. p. 12511. ISSN 2041-1723 cc_by_4_0 CC-BY F800 Physical and Terrestrial Geographical and Environmental Sciences Article PeerReviewed 2016 ftunivnorthumb https://doi.org/10.1038/ncomms12511 2022-09-25T06:04:21Z Establishing the trajectory of thinning of the West Antarctic ice sheet (WAIS) since the last glacial maximum (LGM) is important for addressing questions concerning ice sheet (in)stability and changes in global sea level. Here we present detailed geomorphological and cosmogenic nuclide data from the southern Ellsworth Mountains in the heart of the Weddell Sea embayment that suggest the ice sheet, nourished by increased snowfall until the early Holocene, was close to its LGM thickness at 10 ka. A pulse of rapid thinning caused the ice elevation to fall ~400 m to the present level at 6.5–3.5 ka, and could have contributed 1.4–2 m to global sea-level rise. These results imply that the Weddell Sea sector of the WAIS contributed little to late-glacial pulses in sea-level rise but was involved in mid-Holocene rises. The stepped decline is argued to reflect marine downdraw triggered by grounding line retreat into Hercules Inlet. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Weddell Sea Northumbria University, Newcastle: Northumbria Research Link (NRL) Antarctic Ellsworth Mountains ENVELOPE(-85.000,-85.000,-78.750,-78.750) Hercules ENVELOPE(161.450,161.450,-77.483,-77.483) Hercules Inlet ENVELOPE(-79.000,-79.000,-80.066,-80.066) Weddell Weddell Sea West Antarctic Ice Sheet Nature Communications 7 1 |
institution |
Open Polar |
collection |
Northumbria University, Newcastle: Northumbria Research Link (NRL) |
op_collection_id |
ftunivnorthumb |
language |
English |
topic |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
spellingShingle |
F800 Physical and Terrestrial Geographical and Environmental Sciences Hein, Andrew Marrero, Shasta Woodward, John Dunning, Stuart Winter, Kate Westoby, Matt Freeman, Stewart Shanks, Richard Sugden, David Mid-Holocene pulse of thinning in the Weddell Sea sector of the West Antarctic ice sheet |
topic_facet |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
description |
Establishing the trajectory of thinning of the West Antarctic ice sheet (WAIS) since the last glacial maximum (LGM) is important for addressing questions concerning ice sheet (in)stability and changes in global sea level. Here we present detailed geomorphological and cosmogenic nuclide data from the southern Ellsworth Mountains in the heart of the Weddell Sea embayment that suggest the ice sheet, nourished by increased snowfall until the early Holocene, was close to its LGM thickness at 10 ka. A pulse of rapid thinning caused the ice elevation to fall ~400 m to the present level at 6.5–3.5 ka, and could have contributed 1.4–2 m to global sea-level rise. These results imply that the Weddell Sea sector of the WAIS contributed little to late-glacial pulses in sea-level rise but was involved in mid-Holocene rises. The stepped decline is argued to reflect marine downdraw triggered by grounding line retreat into Hercules Inlet. |
format |
Article in Journal/Newspaper |
author |
Hein, Andrew Marrero, Shasta Woodward, John Dunning, Stuart Winter, Kate Westoby, Matt Freeman, Stewart Shanks, Richard Sugden, David |
author_facet |
Hein, Andrew Marrero, Shasta Woodward, John Dunning, Stuart Winter, Kate Westoby, Matt Freeman, Stewart Shanks, Richard Sugden, David |
author_sort |
Hein, Andrew |
title |
Mid-Holocene pulse of thinning in the Weddell Sea sector of the West Antarctic ice sheet |
title_short |
Mid-Holocene pulse of thinning in the Weddell Sea sector of the West Antarctic ice sheet |
title_full |
Mid-Holocene pulse of thinning in the Weddell Sea sector of the West Antarctic ice sheet |
title_fullStr |
Mid-Holocene pulse of thinning in the Weddell Sea sector of the West Antarctic ice sheet |
title_full_unstemmed |
Mid-Holocene pulse of thinning in the Weddell Sea sector of the West Antarctic ice sheet |
title_sort |
mid-holocene pulse of thinning in the weddell sea sector of the west antarctic ice sheet |
publisher |
Nature Publishing |
publishDate |
2016 |
url |
https://nrl.northumbria.ac.uk/id/eprint/27602/ https://doi.org/10.1038/ncomms12511 https://nrl.northumbria.ac.uk/id/eprint/27602/1/NatCommsHoloceneProofs.pdf https://nrl.northumbria.ac.uk/id/eprint/27602/2/ncomms12511.pdf |
long_lat |
ENVELOPE(-85.000,-85.000,-78.750,-78.750) ENVELOPE(161.450,161.450,-77.483,-77.483) ENVELOPE(-79.000,-79.000,-80.066,-80.066) |
geographic |
Antarctic Ellsworth Mountains Hercules Hercules Inlet Weddell Weddell Sea West Antarctic Ice Sheet |
geographic_facet |
Antarctic Ellsworth Mountains Hercules Hercules Inlet Weddell Weddell Sea West Antarctic Ice Sheet |
genre |
Antarc* Antarctic Ice Sheet Weddell Sea |
genre_facet |
Antarc* Antarctic Ice Sheet Weddell Sea |
op_relation |
https://nrl.northumbria.ac.uk/id/eprint/27602/1/NatCommsHoloceneProofs.pdf https://nrl.northumbria.ac.uk/id/eprint/27602/2/ncomms12511.pdf Hein, Andrew, Marrero, Shasta, Woodward, John, Dunning, Stuart, Winter, Kate, Westoby, Matt, Freeman, Stewart, Shanks, Richard and Sugden, David (2016) Mid-Holocene pulse of thinning in the Weddell Sea sector of the West Antarctic ice sheet. Nature Communications, 7. p. 12511. ISSN 2041-1723 |
op_rights |
cc_by_4_0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/ncomms12511 |
container_title |
Nature Communications |
container_volume |
7 |
container_issue |
1 |
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1766264487063584768 |