Southern Ocean temperature records and ice-sheet models demonstrate rapid Antarctic ice sheet retreat under low atmospheric CO 2 during Marine Isotope Stage 31
We quantify precisely the magnitude of ocean warming using the first ever Southern Ocean molecular paleo-temperature reconstructions during the warm Marine Isotope Stage 31 (MIS31-1.085 and 1.055 million years ago). Our data show a sustained surface Southern Ocean warming and a collapse of the Antar...
Published in: | Quaternary Science Reviews |
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Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2020
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Subjects: | |
Online Access: | https://hal-insu.archives-ouvertes.fr/insu-02385673 https://hal-insu.archives-ouvertes.fr/insu-02385673/document https://hal-insu.archives-ouvertes.fr/insu-02385673/file/Beltran%20et%20al-pre-print.pdf https://doi.org/10.1016/j.quascirev.2019.106069 |
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ftunivnantes:oai:HAL:insu-02385673v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDV]Life Sciences [q-bio] [SDU]Sciences of the Universe [physics] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDV]Life Sciences [q-bio] [SDU]Sciences of the Universe [physics] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Beltran, Catherine Golledge, Nicholas R. Ohneiser, Christian Kowalewskie, Douglas E. Sicre, Marie-Alexandrine Hagemang, Kimberly J. Smith, Robert Wilson, Gary S. Mainié, François Southern Ocean temperature records and ice-sheet models demonstrate rapid Antarctic ice sheet retreat under low atmospheric CO 2 during Marine Isotope Stage 31 |
topic_facet |
[SDV]Life Sciences [q-bio] [SDU]Sciences of the Universe [physics] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
We quantify precisely the magnitude of ocean warming using the first ever Southern Ocean molecular paleo-temperature reconstructions during the warm Marine Isotope Stage 31 (MIS31-1.085 and 1.055 million years ago). Our data show a sustained surface Southern Ocean warming and a collapse of the Antarctic and sub Antarctic ocean fronts during that warm period and under low atmospheric CO 2 concentrations. We use sea surface temperature reconstructions to test the scenarios for the AIS retreat during MIS31 using coupled ice-sheet/ice-shelf model. We propose a two-step model for deglaciating West Antarctica which involves mild ocean warming (a new temperature threshold) which forces ice margin 29 retreat followed by rapid ocean warming as the ice sheet retreats.Our work shows that the Paris Agreement target temperature of 1.5°C is sufficient to drive runaway retreat of the West Antarctic Ice Sheet. We derive this conclusion from the robust, ocean temperature proxy record and ice sheet simulation. |
author2 |
University of Otago Dunedin, Nouvelle-Zélande Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC) Worcester State University Worcester Variabilité de l'Océan et de la Glace de mer (VOG) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) LEFE/IMAGO 2013 |
format |
Article in Journal/Newspaper |
author |
Beltran, Catherine Golledge, Nicholas R. Ohneiser, Christian Kowalewskie, Douglas E. Sicre, Marie-Alexandrine Hagemang, Kimberly J. Smith, Robert Wilson, Gary S. Mainié, François |
author_facet |
Beltran, Catherine Golledge, Nicholas R. Ohneiser, Christian Kowalewskie, Douglas E. Sicre, Marie-Alexandrine Hagemang, Kimberly J. Smith, Robert Wilson, Gary S. Mainié, François |
author_sort |
Beltran, Catherine |
title |
Southern Ocean temperature records and ice-sheet models demonstrate rapid Antarctic ice sheet retreat under low atmospheric CO 2 during Marine Isotope Stage 31 |
title_short |
Southern Ocean temperature records and ice-sheet models demonstrate rapid Antarctic ice sheet retreat under low atmospheric CO 2 during Marine Isotope Stage 31 |
title_full |
Southern Ocean temperature records and ice-sheet models demonstrate rapid Antarctic ice sheet retreat under low atmospheric CO 2 during Marine Isotope Stage 31 |
title_fullStr |
Southern Ocean temperature records and ice-sheet models demonstrate rapid Antarctic ice sheet retreat under low atmospheric CO 2 during Marine Isotope Stage 31 |
title_full_unstemmed |
Southern Ocean temperature records and ice-sheet models demonstrate rapid Antarctic ice sheet retreat under low atmospheric CO 2 during Marine Isotope Stage 31 |
title_sort |
southern ocean temperature records and ice-sheet models demonstrate rapid antarctic ice sheet retreat under low atmospheric co 2 during marine isotope stage 31 |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal-insu.archives-ouvertes.fr/insu-02385673 https://hal-insu.archives-ouvertes.fr/insu-02385673/document https://hal-insu.archives-ouvertes.fr/insu-02385673/file/Beltran%20et%20al-pre-print.pdf https://doi.org/10.1016/j.quascirev.2019.106069 |
geographic |
Antarctic Southern Ocean The Antarctic West Antarctica West Antarctic Ice Sheet Antarctic Ocean |
geographic_facet |
Antarctic Southern Ocean The Antarctic West Antarctica West Antarctic Ice Sheet Antarctic Ocean |
genre |
Antarc* Antarctic Antarctic Ocean Antarctica Ice Sheet Ice Shelf Southern Ocean West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Ocean Antarctica Ice Sheet Ice Shelf Southern Ocean West Antarctica |
op_source |
ISSN: 0277-3791 Quaternary Science Reviews https://hal-insu.archives-ouvertes.fr/insu-02385673 Quaternary Science Reviews, Elsevier, 2020, 228, ⟨10.1016/j.quascirev.2019.106069⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2019.106069 insu-02385673 https://hal-insu.archives-ouvertes.fr/insu-02385673 https://hal-insu.archives-ouvertes.fr/insu-02385673/document https://hal-insu.archives-ouvertes.fr/insu-02385673/file/Beltran%20et%20al-pre-print.pdf doi:10.1016/j.quascirev.2019.106069 WOS: 000514254700006 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2019.106069 |
container_title |
Quaternary Science Reviews |
container_volume |
228 |
container_start_page |
106069 |
_version_ |
1766110589898194944 |
spelling |
ftunivnantes:oai:HAL:insu-02385673v1 2023-05-15T13:38:45+02:00 Southern Ocean temperature records and ice-sheet models demonstrate rapid Antarctic ice sheet retreat under low atmospheric CO 2 during Marine Isotope Stage 31 Beltran, Catherine Golledge, Nicholas R. Ohneiser, Christian Kowalewskie, Douglas E. Sicre, Marie-Alexandrine Hagemang, Kimberly J. Smith, Robert Wilson, Gary S. Mainié, François University of Otago Dunedin, Nouvelle-Zélande Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC) Worcester State University Worcester Variabilité de l'Océan et de la Glace de mer (VOG) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) LEFE/IMAGO 2013 2020-01 https://hal-insu.archives-ouvertes.fr/insu-02385673 https://hal-insu.archives-ouvertes.fr/insu-02385673/document https://hal-insu.archives-ouvertes.fr/insu-02385673/file/Beltran%20et%20al-pre-print.pdf https://doi.org/10.1016/j.quascirev.2019.106069 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2019.106069 insu-02385673 https://hal-insu.archives-ouvertes.fr/insu-02385673 https://hal-insu.archives-ouvertes.fr/insu-02385673/document https://hal-insu.archives-ouvertes.fr/insu-02385673/file/Beltran%20et%20al-pre-print.pdf doi:10.1016/j.quascirev.2019.106069 WOS: 000514254700006 info:eu-repo/semantics/OpenAccess ISSN: 0277-3791 Quaternary Science Reviews https://hal-insu.archives-ouvertes.fr/insu-02385673 Quaternary Science Reviews, Elsevier, 2020, 228, ⟨10.1016/j.quascirev.2019.106069⟩ [SDV]Life Sciences [q-bio] [SDU]Sciences of the Universe [physics] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2020 ftunivnantes https://doi.org/10.1016/j.quascirev.2019.106069 2022-07-13T00:07:29Z We quantify precisely the magnitude of ocean warming using the first ever Southern Ocean molecular paleo-temperature reconstructions during the warm Marine Isotope Stage 31 (MIS31-1.085 and 1.055 million years ago). Our data show a sustained surface Southern Ocean warming and a collapse of the Antarctic and sub Antarctic ocean fronts during that warm period and under low atmospheric CO 2 concentrations. We use sea surface temperature reconstructions to test the scenarios for the AIS retreat during MIS31 using coupled ice-sheet/ice-shelf model. We propose a two-step model for deglaciating West Antarctica which involves mild ocean warming (a new temperature threshold) which forces ice margin 29 retreat followed by rapid ocean warming as the ice sheet retreats.Our work shows that the Paris Agreement target temperature of 1.5°C is sufficient to drive runaway retreat of the West Antarctic Ice Sheet. We derive this conclusion from the robust, ocean temperature proxy record and ice sheet simulation. Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean Antarctica Ice Sheet Ice Shelf Southern Ocean West Antarctica Université de Nantes: HAL-UNIV-NANTES Antarctic Southern Ocean The Antarctic West Antarctica West Antarctic Ice Sheet Antarctic Ocean Quaternary Science Reviews 228 106069 |