Ocean temperature impact on ice shelf extent in the eastern Antarctic Peninsula
The recent thinning and retreat of Antarctic ice shelves has been attributed to both atmosphere and ocean warming. However, the lack of continuous, multi-year direct observations as well as limitations of climate and ice shelf models prevent a precise assessment on how the ocean forcing affects the...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/387647 2023-11-12T04:08:34+01:00 Ocean temperature impact on ice shelf extent in the eastern Antarctic Peninsula Etourneau, Johan Sgubin, Giovanni Crosta, Xavier Swingedouw, Didier Willmott, Verónica Barbara, Loïc Houssais, Marie Noëlle Schouten, Stefan Sinninghe Damsté, Jaap S. Goosse, Hugues Escutia, Carlota Crespin, Julien Massé, Guillaume Kim, Jung Hyun Organic geochemistry Organic geochemistry & molecular biogeology 2019-01-18 image/pdf https://dspace.library.uu.nl/handle/1874/387647 en eng 2041-1723 https://dspace.library.uu.nl/handle/1874/387647 info:eu-repo/semantics/OpenAccess Chemistry(all) Biochemistry Genetics and Molecular Biology(all) Physics and Astronomy(all) Article 2019 ftunivutrecht 2023-11-01T23:21:50Z The recent thinning and retreat of Antarctic ice shelves has been attributed to both atmosphere and ocean warming. However, the lack of continuous, multi-year direct observations as well as limitations of climate and ice shelf models prevent a precise assessment on how the ocean forcing affects the fluctuations of a grounded and floating ice cap. Here we show that a +0.3–1.5 °C increase in subsurface ocean temperature (50–400 m) in the northeastern Antarctic Peninsula has driven to major collapse and recession of the regional ice shelf during both the instrumental period and the last 9000 years. Our projections following the representative concentration pathway 8.5 emission scenario from the Fifth Assessment Report of the Intergovernmental Panel on Climate Change reveal a +0.3 °C subsurface ocean temperature warming within the coming decades that will undoubtedly accelerate ice shelf melting, including the southernmost sector of the eastern Antarctic Peninsula. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Ice cap Ice Shelf Ice Shelves Utrecht University Repository Antarctic Antarctic Peninsula |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
topic |
Chemistry(all) Biochemistry Genetics and Molecular Biology(all) Physics and Astronomy(all) |
spellingShingle |
Chemistry(all) Biochemistry Genetics and Molecular Biology(all) Physics and Astronomy(all) Etourneau, Johan Sgubin, Giovanni Crosta, Xavier Swingedouw, Didier Willmott, Verónica Barbara, Loïc Houssais, Marie Noëlle Schouten, Stefan Sinninghe Damsté, Jaap S. Goosse, Hugues Escutia, Carlota Crespin, Julien Massé, Guillaume Kim, Jung Hyun Ocean temperature impact on ice shelf extent in the eastern Antarctic Peninsula |
topic_facet |
Chemistry(all) Biochemistry Genetics and Molecular Biology(all) Physics and Astronomy(all) |
description |
The recent thinning and retreat of Antarctic ice shelves has been attributed to both atmosphere and ocean warming. However, the lack of continuous, multi-year direct observations as well as limitations of climate and ice shelf models prevent a precise assessment on how the ocean forcing affects the fluctuations of a grounded and floating ice cap. Here we show that a +0.3–1.5 °C increase in subsurface ocean temperature (50–400 m) in the northeastern Antarctic Peninsula has driven to major collapse and recession of the regional ice shelf during both the instrumental period and the last 9000 years. Our projections following the representative concentration pathway 8.5 emission scenario from the Fifth Assessment Report of the Intergovernmental Panel on Climate Change reveal a +0.3 °C subsurface ocean temperature warming within the coming decades that will undoubtedly accelerate ice shelf melting, including the southernmost sector of the eastern Antarctic Peninsula. |
author2 |
Organic geochemistry Organic geochemistry & molecular biogeology |
format |
Article in Journal/Newspaper |
author |
Etourneau, Johan Sgubin, Giovanni Crosta, Xavier Swingedouw, Didier Willmott, Verónica Barbara, Loïc Houssais, Marie Noëlle Schouten, Stefan Sinninghe Damsté, Jaap S. Goosse, Hugues Escutia, Carlota Crespin, Julien Massé, Guillaume Kim, Jung Hyun |
author_facet |
Etourneau, Johan Sgubin, Giovanni Crosta, Xavier Swingedouw, Didier Willmott, Verónica Barbara, Loïc Houssais, Marie Noëlle Schouten, Stefan Sinninghe Damsté, Jaap S. Goosse, Hugues Escutia, Carlota Crespin, Julien Massé, Guillaume Kim, Jung Hyun |
author_sort |
Etourneau, Johan |
title |
Ocean temperature impact on ice shelf extent in the eastern Antarctic Peninsula |
title_short |
Ocean temperature impact on ice shelf extent in the eastern Antarctic Peninsula |
title_full |
Ocean temperature impact on ice shelf extent in the eastern Antarctic Peninsula |
title_fullStr |
Ocean temperature impact on ice shelf extent in the eastern Antarctic Peninsula |
title_full_unstemmed |
Ocean temperature impact on ice shelf extent in the eastern Antarctic Peninsula |
title_sort |
ocean temperature impact on ice shelf extent in the eastern antarctic peninsula |
publishDate |
2019 |
url |
https://dspace.library.uu.nl/handle/1874/387647 |
geographic |
Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Ice cap Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Ice cap Ice Shelf Ice Shelves |
op_relation |
2041-1723 https://dspace.library.uu.nl/handle/1874/387647 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782328828960440320 |