Wilkes subglacial basin ice sheet response to Southern Ocean warming during late Pleistocene interglacials
The response of the East Antarctic Ice Sheet to past intervals of oceanic and atmospheric warming is still not well constrained but is critical for understanding both past and future sea-level change. Furthermore, the ice sheet in the Wilkes Subglacial Basin appears to have undergone thinning and ic...
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Online Access: | http://hdl.handle.net/11590/418688 https://doi.org/10.1038/s41467-022-32847-3 https://www.nature.com/articles/s41467-022-32847-3 |
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ftunivroma3iris:oai:iris.uniroma3.it:11590/418688 2024-02-27T08:33:33+00:00 Wilkes subglacial basin ice sheet response to Southern Ocean warming during late Pleistocene interglacials Crotti I. Quiquet A. Landais A. Stenni B. Wilson D. J. Severi M. Mulvaney R. Wilhelms F. Barbante C. Frezzotti M. Crotti, I. Quiquet, A. Landais, A. Stenni, B. Wilson, D. J. Severi, M. Mulvaney, R. Wilhelms, F. Barbante, C. Frezzotti, M. 2022 http://hdl.handle.net/11590/418688 https://doi.org/10.1038/s41467-022-32847-3 https://www.nature.com/articles/s41467-022-32847-3 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000852397300013 volume:13 issue:1 firstpage:5328 journal:NATURE COMMUNICATIONS http://hdl.handle.net/11590/418688 doi:10.1038/s41467-022-32847-3 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85138127323 https://www.nature.com/articles/s41467-022-32847-3 Antarctic Region Oceans and Sea Temperature Ice Cover info:eu-repo/semantics/article 2022 ftunivroma3iris https://doi.org/10.1038/s41467-022-32847-3 2024-01-31T17:43:23Z The response of the East Antarctic Ice Sheet to past intervals of oceanic and atmospheric warming is still not well constrained but is critical for understanding both past and future sea-level change. Furthermore, the ice sheet in the Wilkes Subglacial Basin appears to have undergone thinning and ice discharge events during recent decades. Here we combine glaciological evidence on ice sheet elevation from the TALDICE ice core with offshore sedimentological records and ice sheet modelling experiments to reconstruct the ice dynamics in the Wilkes Subglacial Basin over the past 350,000 years. Our results indicate that the Wilkes Subglacial Basin experienced an extensive retreat 330,000 years ago and a more limited retreat 125,000 years ago. These changes coincide with warmer Southern Ocean temperatures and elevated global mean sea level during those interglacial periods, confirming the sensitivity of the Wilkes Subglacial Basin ice sheet to ocean warming and its potential role in sea-level change. Article in Journal/Newspaper Antarc* Antarctic ice core Ice Sheet Southern Ocean Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) Antarctic Southern Ocean East Antarctic Ice Sheet Wilkes Subglacial Basin ENVELOPE(145.000,145.000,-75.000,-75.000) Nature Communications 13 1 |
institution |
Open Polar |
collection |
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) |
op_collection_id |
ftunivroma3iris |
language |
English |
topic |
Antarctic Region Oceans and Sea Temperature Ice Cover |
spellingShingle |
Antarctic Region Oceans and Sea Temperature Ice Cover Crotti I. Quiquet A. Landais A. Stenni B. Wilson D. J. Severi M. Mulvaney R. Wilhelms F. Barbante C. Frezzotti M. Wilkes subglacial basin ice sheet response to Southern Ocean warming during late Pleistocene interglacials |
topic_facet |
Antarctic Region Oceans and Sea Temperature Ice Cover |
description |
The response of the East Antarctic Ice Sheet to past intervals of oceanic and atmospheric warming is still not well constrained but is critical for understanding both past and future sea-level change. Furthermore, the ice sheet in the Wilkes Subglacial Basin appears to have undergone thinning and ice discharge events during recent decades. Here we combine glaciological evidence on ice sheet elevation from the TALDICE ice core with offshore sedimentological records and ice sheet modelling experiments to reconstruct the ice dynamics in the Wilkes Subglacial Basin over the past 350,000 years. Our results indicate that the Wilkes Subglacial Basin experienced an extensive retreat 330,000 years ago and a more limited retreat 125,000 years ago. These changes coincide with warmer Southern Ocean temperatures and elevated global mean sea level during those interglacial periods, confirming the sensitivity of the Wilkes Subglacial Basin ice sheet to ocean warming and its potential role in sea-level change. |
author2 |
Crotti, I. Quiquet, A. Landais, A. Stenni, B. Wilson, D. J. Severi, M. Mulvaney, R. Wilhelms, F. Barbante, C. Frezzotti, M. |
format |
Article in Journal/Newspaper |
author |
Crotti I. Quiquet A. Landais A. Stenni B. Wilson D. J. Severi M. Mulvaney R. Wilhelms F. Barbante C. Frezzotti M. |
author_facet |
Crotti I. Quiquet A. Landais A. Stenni B. Wilson D. J. Severi M. Mulvaney R. Wilhelms F. Barbante C. Frezzotti M. |
author_sort |
Crotti I. |
title |
Wilkes subglacial basin ice sheet response to Southern Ocean warming during late Pleistocene interglacials |
title_short |
Wilkes subglacial basin ice sheet response to Southern Ocean warming during late Pleistocene interglacials |
title_full |
Wilkes subglacial basin ice sheet response to Southern Ocean warming during late Pleistocene interglacials |
title_fullStr |
Wilkes subglacial basin ice sheet response to Southern Ocean warming during late Pleistocene interglacials |
title_full_unstemmed |
Wilkes subglacial basin ice sheet response to Southern Ocean warming during late Pleistocene interglacials |
title_sort |
wilkes subglacial basin ice sheet response to southern ocean warming during late pleistocene interglacials |
publishDate |
2022 |
url |
http://hdl.handle.net/11590/418688 https://doi.org/10.1038/s41467-022-32847-3 https://www.nature.com/articles/s41467-022-32847-3 |
long_lat |
ENVELOPE(145.000,145.000,-75.000,-75.000) |
geographic |
Antarctic Southern Ocean East Antarctic Ice Sheet Wilkes Subglacial Basin |
geographic_facet |
Antarctic Southern Ocean East Antarctic Ice Sheet Wilkes Subglacial Basin |
genre |
Antarc* Antarctic ice core Ice Sheet Southern Ocean |
genre_facet |
Antarc* Antarctic ice core Ice Sheet Southern Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000852397300013 volume:13 issue:1 firstpage:5328 journal:NATURE COMMUNICATIONS http://hdl.handle.net/11590/418688 doi:10.1038/s41467-022-32847-3 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85138127323 https://www.nature.com/articles/s41467-022-32847-3 |
op_doi |
https://doi.org/10.1038/s41467-022-32847-3 |
container_title |
Nature Communications |
container_volume |
13 |
container_issue |
1 |
_version_ |
1792046300318924800 |