History of the Larsen C Ice Shelf reconstructed from sub-ice shelf and offshore sediments ...
Because ice shelves respond to climatic forcing over a range of time scales, from years to millennia, an understanding of their long-term history is critically needed for predicting their future evolution. We present the first detailed reconstruction of the Larsen C Ice Shelf (LCIS), eastern Antarct...
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Online Access: | https://dx.doi.org/10.3929/ethz-b-000500215 http://hdl.handle.net/20.500.11850/500215 |
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ftdatacite:10.3929/ethz-b-000500215 2024-04-28T07:57:33+00:00 History of the Larsen C Ice Shelf reconstructed from sub-ice shelf and offshore sediments ... Smith, James A. Hillenbrand, Claus-Dieter Subt, C. Rosenheim, Brad E. Frederichs, Thomas Ehrmann, Werner Andersen, Thorbjørn J. Wacker, Lukas Makinson, Keith Anker, Paul Venables, Emily Joanne Nicholls, Keith W. 2021 application/pdf https://dx.doi.org/10.3929/ethz-b-000500215 http://hdl.handle.net/20.500.11850/500215 en eng ETH Zurich info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 article-journal Text ScholarlyArticle Journal Article 2021 ftdatacite https://doi.org/10.3929/ethz-b-000500215 2024-04-02T12:34:54Z Because ice shelves respond to climatic forcing over a range of time scales, from years to millennia, an understanding of their long-term history is critically needed for predicting their future evolution. We present the first detailed reconstruction of the Larsen C Ice Shelf (LCIS), eastern Antarctic Peninsula (AP), based on data from sediment cores recovered from below and in front of the ice shelf. Sedimentologic and chronologic information reveals that the grounding line (GL) of an expanded AP ice sheet had started its retreat from the midshelf prior to 17.7 +/- 0.53 calibrated (cal.) kyr B.P., with the calving line following similar to 6 k.y. later. The GL had reached the inner shelf as early as 9.83 +/- 0.85 cal. kyr B.P. Since ca. 7.3 ka, the ice shelf has undergone two phases of retreat but without collapse, indicating that the climatic limit of LCIS stability was not breached during the Holocene. Future collapse of the LCIS would therefore confirm that the magnitudes of both ice loss along the ... : Geology, 49 (8) ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf Ice Shelves DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
English |
description |
Because ice shelves respond to climatic forcing over a range of time scales, from years to millennia, an understanding of their long-term history is critically needed for predicting their future evolution. We present the first detailed reconstruction of the Larsen C Ice Shelf (LCIS), eastern Antarctic Peninsula (AP), based on data from sediment cores recovered from below and in front of the ice shelf. Sedimentologic and chronologic information reveals that the grounding line (GL) of an expanded AP ice sheet had started its retreat from the midshelf prior to 17.7 +/- 0.53 calibrated (cal.) kyr B.P., with the calving line following similar to 6 k.y. later. The GL had reached the inner shelf as early as 9.83 +/- 0.85 cal. kyr B.P. Since ca. 7.3 ka, the ice shelf has undergone two phases of retreat but without collapse, indicating that the climatic limit of LCIS stability was not breached during the Holocene. Future collapse of the LCIS would therefore confirm that the magnitudes of both ice loss along the ... : Geology, 49 (8) ... |
format |
Article in Journal/Newspaper |
author |
Smith, James A. Hillenbrand, Claus-Dieter Subt, C. Rosenheim, Brad E. Frederichs, Thomas Ehrmann, Werner Andersen, Thorbjørn J. Wacker, Lukas Makinson, Keith Anker, Paul Venables, Emily Joanne Nicholls, Keith W. |
spellingShingle |
Smith, James A. Hillenbrand, Claus-Dieter Subt, C. Rosenheim, Brad E. Frederichs, Thomas Ehrmann, Werner Andersen, Thorbjørn J. Wacker, Lukas Makinson, Keith Anker, Paul Venables, Emily Joanne Nicholls, Keith W. History of the Larsen C Ice Shelf reconstructed from sub-ice shelf and offshore sediments ... |
author_facet |
Smith, James A. Hillenbrand, Claus-Dieter Subt, C. Rosenheim, Brad E. Frederichs, Thomas Ehrmann, Werner Andersen, Thorbjørn J. Wacker, Lukas Makinson, Keith Anker, Paul Venables, Emily Joanne Nicholls, Keith W. |
author_sort |
Smith, James A. |
title |
History of the Larsen C Ice Shelf reconstructed from sub-ice shelf and offshore sediments ... |
title_short |
History of the Larsen C Ice Shelf reconstructed from sub-ice shelf and offshore sediments ... |
title_full |
History of the Larsen C Ice Shelf reconstructed from sub-ice shelf and offshore sediments ... |
title_fullStr |
History of the Larsen C Ice Shelf reconstructed from sub-ice shelf and offshore sediments ... |
title_full_unstemmed |
History of the Larsen C Ice Shelf reconstructed from sub-ice shelf and offshore sediments ... |
title_sort |
history of the larsen c ice shelf reconstructed from sub-ice shelf and offshore sediments ... |
publisher |
ETH Zurich |
publishDate |
2021 |
url |
https://dx.doi.org/10.3929/ethz-b-000500215 http://hdl.handle.net/20.500.11850/500215 |
genre |
Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf Ice Shelves |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.3929/ethz-b-000500215 |
_version_ |
1797589173499068416 |