Reconciling glacial Antarctic water stable isotopes with ice sheet topography and the isotopic paleothermometer
International audience Stable water isotope records from Antarctica are key for our understanding of Quaternary climate variations. However, the exact quantitative interpretation of these important climate proxy records in terms of surface temperature, ice sheet height and other climatic changes is...
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ftunivnantes:oai:HAL:hal-02975848v1 2023-05-15T13:56:36+02:00 Reconciling glacial Antarctic water stable isotopes with ice sheet topography and the isotopic paleothermometer Werner, Martin Jouzel, Jean Masson-Delmotte, Valérie Lohmann, Gerrit Alfred Wegener Institute for Polar and Marine Research (AWI) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) 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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) 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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) 2018-12 https://hal.archives-ouvertes.fr/hal-02975848 https://hal.archives-ouvertes.fr/hal-02975848/document https://hal.archives-ouvertes.fr/hal-02975848/file/s41467-018-05430-y.pdf https://doi.org/10.1038/s41467-018-05430-y en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-018-05430-y hal-02975848 https://hal.archives-ouvertes.fr/hal-02975848 https://hal.archives-ouvertes.fr/hal-02975848/document https://hal.archives-ouvertes.fr/hal-02975848/file/s41467-018-05430-y.pdf doi:10.1038/s41467-018-05430-y info:eu-repo/semantics/OpenAccess ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.archives-ouvertes.fr/hal-02975848 Nature Communications, Nature Publishing Group, 2018, 9 (1), ⟨10.1038/s41467-018-05430-y⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2018 ftunivnantes https://doi.org/10.1038/s41467-018-05430-y 2022-10-18T23:39:10Z International audience Stable water isotope records from Antarctica are key for our understanding of Quaternary climate variations. However, the exact quantitative interpretation of these important climate proxy records in terms of surface temperature, ice sheet height and other climatic changes is still a matter of debate. Here we report results obtained with an atmospheric general circulation model equipped with water isotopes, run at a high-spatial horizontal resolution of one-by-one degree. Comparing different glacial maximum ice sheet reconstructions, a best model data match is achieved for the PMIP3 reconstruction. Reduced West Antarctic elevation changes between 400 and 800 m lead to further improved agreement with ice core data. Our modern and glacial climate simulations support the validity of the isotopic paleothermometer approach based on the use of present-day observations and reveal that a glacial ocean state as displayed in the GLAMAP reconstruction is suitable for capturing the observed glacial isotope changes in Antarctic ice cores. Article in Journal/Newspaper Antarc* Antarctic Antarctica ice core Ice Sheet Université de Nantes: HAL-UNIV-NANTES Antarctic Nature Communications 9 1 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Werner, Martin Jouzel, Jean Masson-Delmotte, Valérie Lohmann, Gerrit Reconciling glacial Antarctic water stable isotopes with ice sheet topography and the isotopic paleothermometer |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Stable water isotope records from Antarctica are key for our understanding of Quaternary climate variations. However, the exact quantitative interpretation of these important climate proxy records in terms of surface temperature, ice sheet height and other climatic changes is still a matter of debate. Here we report results obtained with an atmospheric general circulation model equipped with water isotopes, run at a high-spatial horizontal resolution of one-by-one degree. Comparing different glacial maximum ice sheet reconstructions, a best model data match is achieved for the PMIP3 reconstruction. Reduced West Antarctic elevation changes between 400 and 800 m lead to further improved agreement with ice core data. Our modern and glacial climate simulations support the validity of the isotopic paleothermometer approach based on the use of present-day observations and reveal that a glacial ocean state as displayed in the GLAMAP reconstruction is suitable for capturing the observed glacial isotope changes in Antarctic ice cores. |
author2 |
Alfred Wegener Institute for Polar and Marine Research (AWI) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) 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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) 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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Werner, Martin Jouzel, Jean Masson-Delmotte, Valérie Lohmann, Gerrit |
author_facet |
Werner, Martin Jouzel, Jean Masson-Delmotte, Valérie Lohmann, Gerrit |
author_sort |
Werner, Martin |
title |
Reconciling glacial Antarctic water stable isotopes with ice sheet topography and the isotopic paleothermometer |
title_short |
Reconciling glacial Antarctic water stable isotopes with ice sheet topography and the isotopic paleothermometer |
title_full |
Reconciling glacial Antarctic water stable isotopes with ice sheet topography and the isotopic paleothermometer |
title_fullStr |
Reconciling glacial Antarctic water stable isotopes with ice sheet topography and the isotopic paleothermometer |
title_full_unstemmed |
Reconciling glacial Antarctic water stable isotopes with ice sheet topography and the isotopic paleothermometer |
title_sort |
reconciling glacial antarctic water stable isotopes with ice sheet topography and the isotopic paleothermometer |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.archives-ouvertes.fr/hal-02975848 https://hal.archives-ouvertes.fr/hal-02975848/document https://hal.archives-ouvertes.fr/hal-02975848/file/s41467-018-05430-y.pdf https://doi.org/10.1038/s41467-018-05430-y |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica ice core Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica ice core Ice Sheet |
op_source |
ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.archives-ouvertes.fr/hal-02975848 Nature Communications, Nature Publishing Group, 2018, 9 (1), ⟨10.1038/s41467-018-05430-y⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-018-05430-y hal-02975848 https://hal.archives-ouvertes.fr/hal-02975848 https://hal.archives-ouvertes.fr/hal-02975848/document https://hal.archives-ouvertes.fr/hal-02975848/file/s41467-018-05430-y.pdf doi:10.1038/s41467-018-05430-y |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41467-018-05430-y |
container_title |
Nature Communications |
container_volume |
9 |
container_issue |
1 |
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1766264143732539392 |