Quantifying ice-sheet feedbacks during the last glacial inception
International audience The last glacial inception (∼116 ky ago) has long been used to test the sensitivity of climate models to insolation. From these simulations, atmospheric, oceanic and vegetation feedbacks have been shown to amplify the initial insolation signal into a rapid growth of ice‐sheets...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2004
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Online Access: | https://hal.archives-ouvertes.fr/hal-02930163 https://hal.archives-ouvertes.fr/hal-02930163/document https://hal.archives-ouvertes.fr/hal-02930163/file/2004GL021339.pdf https://doi.org/10.1029/2004GL021339 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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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 Kageyama, M. Charbit, S. Ritz, C. Khodri, M. Ramstein, G. Quantifying ice-sheet feedbacks during the last glacial inception |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience The last glacial inception (∼116 ky ago) has long been used to test the sensitivity of climate models to insolation. From these simulations, atmospheric, oceanic and vegetation feedbacks have been shown to amplify the initial insolation signal into a rapid growth of ice‐sheets over the northern hemisphere. However, due to the lack of comprehensive atmosphere‐ocean‐vegetation‐northern hemisphere ice‐sheet models, the impact of all these feedbacks acting concurrently has not yet been evaluated. Here we present the results from such a model, which simulates significant ice‐sheet growth over North America, but none over Eurasia. Our analyses focus on the different behaviours over these regions, and the quantification of the ice‐sheet feedbacks on climate. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Modélisation du climat (CLIM) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Lamont-Doherty Earth Observatory (LDEO) Columbia University New York |
format |
Article in Journal/Newspaper |
author |
Kageyama, M. Charbit, S. Ritz, C. Khodri, M. Ramstein, G. |
author_facet |
Kageyama, M. Charbit, S. Ritz, C. Khodri, M. Ramstein, G. |
author_sort |
Kageyama, M. |
title |
Quantifying ice-sheet feedbacks during the last glacial inception |
title_short |
Quantifying ice-sheet feedbacks during the last glacial inception |
title_full |
Quantifying ice-sheet feedbacks during the last glacial inception |
title_fullStr |
Quantifying ice-sheet feedbacks during the last glacial inception |
title_full_unstemmed |
Quantifying ice-sheet feedbacks during the last glacial inception |
title_sort |
quantifying ice-sheet feedbacks during the last glacial inception |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://hal.archives-ouvertes.fr/hal-02930163 https://hal.archives-ouvertes.fr/hal-02930163/document https://hal.archives-ouvertes.fr/hal-02930163/file/2004GL021339.pdf https://doi.org/10.1029/2004GL021339 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.archives-ouvertes.fr/hal-02930163 Geophysical Research Letters, American Geophysical Union, 2004, 31 (24), ⟨10.1029/2004GL021339⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2004GL021339 hal-02930163 https://hal.archives-ouvertes.fr/hal-02930163 https://hal.archives-ouvertes.fr/hal-02930163/document https://hal.archives-ouvertes.fr/hal-02930163/file/2004GL021339.pdf doi:10.1029/2004GL021339 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2004GL021339 |
container_title |
Geophysical Research Letters |
container_volume |
31 |
container_issue |
24 |
_version_ |
1766030066261688320 |
spelling |
ftccsdartic:oai:HAL:hal-02930163v1 2023-05-15T16:39:44+02:00 Quantifying ice-sheet feedbacks during the last glacial inception Kageyama, M. Charbit, S. Ritz, C. Khodri, M. Ramstein, G. Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Modélisation du climat (CLIM) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Lamont-Doherty Earth Observatory (LDEO) Columbia University New York 2004 https://hal.archives-ouvertes.fr/hal-02930163 https://hal.archives-ouvertes.fr/hal-02930163/document https://hal.archives-ouvertes.fr/hal-02930163/file/2004GL021339.pdf https://doi.org/10.1029/2004GL021339 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2004GL021339 hal-02930163 https://hal.archives-ouvertes.fr/hal-02930163 https://hal.archives-ouvertes.fr/hal-02930163/document https://hal.archives-ouvertes.fr/hal-02930163/file/2004GL021339.pdf doi:10.1029/2004GL021339 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.archives-ouvertes.fr/hal-02930163 Geophysical Research Letters, American Geophysical Union, 2004, 31 (24), ⟨10.1029/2004GL021339⟩ [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 2004 ftccsdartic https://doi.org/10.1029/2004GL021339 2021-12-19T00:55:22Z International audience The last glacial inception (∼116 ky ago) has long been used to test the sensitivity of climate models to insolation. From these simulations, atmospheric, oceanic and vegetation feedbacks have been shown to amplify the initial insolation signal into a rapid growth of ice‐sheets over the northern hemisphere. However, due to the lack of comprehensive atmosphere‐ocean‐vegetation‐northern hemisphere ice‐sheet models, the impact of all these feedbacks acting concurrently has not yet been evaluated. Here we present the results from such a model, which simulates significant ice‐sheet growth over North America, but none over Eurasia. Our analyses focus on the different behaviours over these regions, and the quantification of the ice‐sheet feedbacks on climate. Article in Journal/Newspaper Ice Sheet Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Geophysical Research Letters 31 24 |