Delicate seafloor landforms reveal past Antarctic grounding-line retreat of kilometers per year
A rapid retreat Are the rates at which we observe ice shelves shrinking today representative of how fast they shrank in the past? Dowdeswell et al. report observations of the Antarctic seafloor that reveal the presence of submarine grounding-zone wedges on the Larsen continental shelf (see the Persp...
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American Association for the Advancement of Science (AAAS)
2020
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Online Access: | http://dx.doi.org/10.1126/science.aaz3059 https://syndication.highwire.org/content/doi/10.1126/science.aaz3059 https://www.science.org/doi/pdf/10.1126/science.aaz3059 |
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craaas:10.1126/science.aaz3059 2024-09-15T17:48:30+00:00 Delicate seafloor landforms reveal past Antarctic grounding-line retreat of kilometers per year Dowdeswell, J. A. Batchelor, C. L. Montelli, A. Ottesen, D. Christie, F. D. W. Dowdeswell, E. K. Evans, J. The Flotilla Foundation Marine Archaeology Consultants Switzerland 2020 http://dx.doi.org/10.1126/science.aaz3059 https://syndication.highwire.org/content/doi/10.1126/science.aaz3059 https://www.science.org/doi/pdf/10.1126/science.aaz3059 en eng American Association for the Advancement of Science (AAAS) Science volume 368, issue 6494, page 1020-1024 ISSN 0036-8075 1095-9203 journal-article 2020 craaas https://doi.org/10.1126/science.aaz3059 2024-09-05T04:01:17Z A rapid retreat Are the rates at which we observe ice shelves shrinking today representative of how fast they shrank in the past? Dowdeswell et al. report observations of the Antarctic seafloor that reveal the presence of submarine grounding-zone wedges on the Larsen continental shelf (see the Perspective by Jakobsson). The authors interpret these ridges as being caused by the tidal rise and fall of the ice shelf at the grounding line, which squeezes the underlying sediments when it rests on the seafloor. From this, they calculated that ice shelf retreat at this location about 14,000 years ago was at times as much as 100 times as fast as the average over the past 10,000 years. Science , this issue p. 1020 see also p. 939 Article in Journal/Newspaper Antarc* Antarctic Ice Shelf Ice Shelves AAAS Resource Center (American Association for the Advancement of Science) Science 368 6494 1020 1024 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
op_collection_id |
craaas |
language |
English |
description |
A rapid retreat Are the rates at which we observe ice shelves shrinking today representative of how fast they shrank in the past? Dowdeswell et al. report observations of the Antarctic seafloor that reveal the presence of submarine grounding-zone wedges on the Larsen continental shelf (see the Perspective by Jakobsson). The authors interpret these ridges as being caused by the tidal rise and fall of the ice shelf at the grounding line, which squeezes the underlying sediments when it rests on the seafloor. From this, they calculated that ice shelf retreat at this location about 14,000 years ago was at times as much as 100 times as fast as the average over the past 10,000 years. Science , this issue p. 1020 see also p. 939 |
author2 |
The Flotilla Foundation Marine Archaeology Consultants Switzerland |
format |
Article in Journal/Newspaper |
author |
Dowdeswell, J. A. Batchelor, C. L. Montelli, A. Ottesen, D. Christie, F. D. W. Dowdeswell, E. K. Evans, J. |
spellingShingle |
Dowdeswell, J. A. Batchelor, C. L. Montelli, A. Ottesen, D. Christie, F. D. W. Dowdeswell, E. K. Evans, J. Delicate seafloor landforms reveal past Antarctic grounding-line retreat of kilometers per year |
author_facet |
Dowdeswell, J. A. Batchelor, C. L. Montelli, A. Ottesen, D. Christie, F. D. W. Dowdeswell, E. K. Evans, J. |
author_sort |
Dowdeswell, J. A. |
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 |
American Association for the Advancement of Science (AAAS) |
publishDate |
2020 |
url |
http://dx.doi.org/10.1126/science.aaz3059 https://syndication.highwire.org/content/doi/10.1126/science.aaz3059 https://www.science.org/doi/pdf/10.1126/science.aaz3059 |
genre |
Antarc* Antarctic Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctic Ice Shelf Ice Shelves |
op_source |
Science volume 368, issue 6494, page 1020-1024 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.aaz3059 |
container_title |
Science |
container_volume |
368 |
container_issue |
6494 |
container_start_page |
1020 |
op_container_end_page |
1024 |
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1810289769856368640 |