Delicate seafloor landforms reveal past Antarctic grounding-line retreat of kilometers per year. ...
A suite of grounding-line landforms on the Antarctic seafloor, imaged at submeter horizontal resolution from an autonomous underwater vehicle, enables calculation of ice sheet retreat rates from a complex of grounding-zone wedges on the Larsen continental shelf, western Weddell Sea. The landforms ar...
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ftdatacite:10.17863/cam.53192 2023-05-15T13:49:52+02:00 Delicate seafloor landforms reveal past Antarctic grounding-line retreat of kilometers per year. ... Dowdeswell, JA Batchelor, CL Montelli, A Ottesen, D Christie, FDW Dowdeswell, EK Evans, J 2020 https://dx.doi.org/10.17863/cam.53192 https://www.repository.cam.ac.uk/handle/1810/306113 unknown Apollo - University of Cambridge Repository All rights reserved 13 Climate Action Article ScholarlyArticle article-journal Text 2020 ftdatacite https://doi.org/10.17863/cam.53192 2023-04-03T12:52:28Z A suite of grounding-line landforms on the Antarctic seafloor, imaged at submeter horizontal resolution from an autonomous underwater vehicle, enables calculation of ice sheet retreat rates from a complex of grounding-zone wedges on the Larsen continental shelf, western Weddell Sea. The landforms are delicate sets of up to 90 ridges, <1.5 meters high and spaced 20 to 25 meters apart. We interpret these ridges as the product of squeezing up of soft sediment during the rise and fall of the retreating ice sheet grounding line during successive tidal cycles. Grounding-line retreat rates of 40 to 50 meters per day (>10 kilometers per year) are inferred during regional deglaciation of the Larsen shelf. If repeated today, such rapid mass loss to the ocean would have clear implications for increasing the rate of global sea level rise. ... Text Antarc* Antarctic Ice Sheet Weddell Sea DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic Weddell Sea Weddell |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
unknown |
topic |
13 Climate Action |
spellingShingle |
13 Climate Action Dowdeswell, JA Batchelor, CL Montelli, A Ottesen, D Christie, FDW Dowdeswell, EK Evans, J Delicate seafloor landforms reveal past Antarctic grounding-line retreat of kilometers per year. ... |
topic_facet |
13 Climate Action |
description |
A suite of grounding-line landforms on the Antarctic seafloor, imaged at submeter horizontal resolution from an autonomous underwater vehicle, enables calculation of ice sheet retreat rates from a complex of grounding-zone wedges on the Larsen continental shelf, western Weddell Sea. The landforms are delicate sets of up to 90 ridges, <1.5 meters high and spaced 20 to 25 meters apart. We interpret these ridges as the product of squeezing up of soft sediment during the rise and fall of the retreating ice sheet grounding line during successive tidal cycles. Grounding-line retreat rates of 40 to 50 meters per day (>10 kilometers per year) are inferred during regional deglaciation of the Larsen shelf. If repeated today, such rapid mass loss to the ocean would have clear implications for increasing the rate of global sea level rise. ... |
format |
Text |
author |
Dowdeswell, JA Batchelor, CL Montelli, A Ottesen, D Christie, FDW Dowdeswell, EK Evans, J |
author_facet |
Dowdeswell, JA Batchelor, CL Montelli, A Ottesen, D Christie, FDW Dowdeswell, EK Evans, J |
author_sort |
Dowdeswell, JA |
title |
Delicate seafloor landforms reveal past Antarctic grounding-line retreat of kilometers per year. ... |
title_short |
Delicate seafloor landforms reveal past Antarctic grounding-line retreat of kilometers per year. ... |
title_full |
Delicate seafloor landforms reveal past Antarctic grounding-line retreat of kilometers per year. ... |
title_fullStr |
Delicate seafloor landforms reveal past Antarctic grounding-line retreat of kilometers per year. ... |
title_full_unstemmed |
Delicate seafloor landforms reveal past Antarctic grounding-line retreat of kilometers per year. ... |
title_sort |
delicate seafloor landforms reveal past antarctic grounding-line retreat of kilometers per year. ... |
publisher |
Apollo - University of Cambridge Repository |
publishDate |
2020 |
url |
https://dx.doi.org/10.17863/cam.53192 https://www.repository.cam.ac.uk/handle/1810/306113 |
geographic |
Antarctic The Antarctic Weddell Sea Weddell |
geographic_facet |
Antarctic The Antarctic Weddell Sea Weddell |
genre |
Antarc* Antarctic Ice Sheet Weddell Sea |
genre_facet |
Antarc* Antarctic Ice Sheet Weddell Sea |
op_rights |
All rights reserved |
op_doi |
https://doi.org/10.17863/cam.53192 |
_version_ |
1766252452940611584 |