Modelling the climate evolution from the last interglacial to the start of the last glaciation: The role of Arctic Ocean freshwater budget

International audience [1] The Earth's climate has alternated between glacial and interglacial stages, but we still do not understand how the changes in insolation have been amplified by the climate system to lead to such a large climatic response. Here we use a climate model of intermediate co...

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Published in:Geophysical Research Letters
Main Authors: Khodri, M., Ramstein, Gilles, Paillard, D., Duplessy, J., Kageyama, M., Ganopolski, A.
Other Authors: Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE), 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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Modélisation du climat (CLIM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Paléocéanographie (PALEOCEAN), Potsdam Institute for Climate Impact Research (PIK)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2003
Subjects:
Online Access:https://hal.science/hal-02930154
https://hal.science/hal-02930154/document
https://hal.science/hal-02930154/file/2003GL017108.pdf
https://doi.org/10.1029/2003GL017108
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spelling ftinsu:oai:HAL:hal-02930154v1 2024-04-28T08:08:27+00:00 Modelling the climate evolution from the last interglacial to the start of the last glaciation: The role of Arctic Ocean freshwater budget Khodri, M. Ramstein, Gilles Paillard, D. Duplessy, J. Kageyama, M. Ganopolski, A. Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) 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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Modélisation du climat (CLIM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Paléocéanographie (PALEOCEAN) Potsdam Institute for Climate Impact Research (PIK) 2003-06 https://hal.science/hal-02930154 https://hal.science/hal-02930154/document https://hal.science/hal-02930154/file/2003GL017108.pdf https://doi.org/10.1029/2003GL017108 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2003GL017108 hal-02930154 https://hal.science/hal-02930154 https://hal.science/hal-02930154/document https://hal.science/hal-02930154/file/2003GL017108.pdf doi:10.1029/2003GL017108 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-02930154 Geophysical Research Letters, 2003, 30 (12), ⟨10.1029/2003GL017108⟩ INDEX TERMS: 3344 Meteorology and Atmospheric Dynamics: Paleoclimatology 3309 Meteorology and Atmospheric Dynamics: Climatology (1620) 3339 Meteorology and Atmospheric Dynamics: Ocean/atmosphere interactions (0312 4504) 4267 Oceanography: General: Paleoceanography 1620 Global Change: Climate dynamics (3309) Citation: [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 2003 ftinsu https://doi.org/10.1029/2003GL017108 2024-04-05T00:40:57Z International audience [1] The Earth's climate has alternated between glacial and interglacial stages, but we still do not understand how the changes in insolation have been amplified by the climate system to lead to such a large climatic response. Here we use a climate model of intermediate complexity to show that the orbitally induced shift from an interglacial to a pre-glacial climate is highly sensitive to the high northern latitudes moisture budget. Using the insolation forcing alone, the model produces a first order response of sea surface temperatures and thermohaline circulation evolution which agrees with the available geological data. Under the same gradual insolation evolution, adding a small freshwater input into the Arctic Ocean induces a rapid climate switch from an interglacial to a pre-glacial mode. These results suggest a simple connection between orbital forcing and the thermohaline circulation through a freshwater threshold within the ocean-atmosphere-sea-ice system. Modelling the climate evolution from the last interglacial to the start of the last glaciation: The role of Arctic Ocean freshwater budget, Geophys. Article in Journal/Newspaper Arctic Arctic Ocean Sea ice Institut national des sciences de l'Univers: HAL-INSU Geophysical Research Letters 30 12
institution Open Polar
collection Institut national des sciences de l'Univers: HAL-INSU
op_collection_id ftinsu
language English
topic INDEX TERMS: 3344 Meteorology and Atmospheric Dynamics: Paleoclimatology
3309 Meteorology and Atmospheric Dynamics: Climatology (1620)
3339 Meteorology and Atmospheric Dynamics: Ocean/atmosphere interactions (0312
4504)
4267 Oceanography: General: Paleoceanography
1620 Global Change: Climate dynamics (3309) Citation:
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces
environment
spellingShingle INDEX TERMS: 3344 Meteorology and Atmospheric Dynamics: Paleoclimatology
3309 Meteorology and Atmospheric Dynamics: Climatology (1620)
3339 Meteorology and Atmospheric Dynamics: Ocean/atmosphere interactions (0312
4504)
4267 Oceanography: General: Paleoceanography
1620 Global Change: Climate dynamics (3309) Citation:
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces
environment
Khodri, M.
Ramstein, Gilles
Paillard, D.
Duplessy, J.
Kageyama, M.
Ganopolski, A.
Modelling the climate evolution from the last interglacial to the start of the last glaciation: The role of Arctic Ocean freshwater budget
topic_facet INDEX TERMS: 3344 Meteorology and Atmospheric Dynamics: Paleoclimatology
3309 Meteorology and Atmospheric Dynamics: Climatology (1620)
3339 Meteorology and Atmospheric Dynamics: Ocean/atmosphere interactions (0312
4504)
4267 Oceanography: General: Paleoceanography
1620 Global Change: Climate dynamics (3309) Citation:
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces
environment
description International audience [1] The Earth's climate has alternated between glacial and interglacial stages, but we still do not understand how the changes in insolation have been amplified by the climate system to lead to such a large climatic response. Here we use a climate model of intermediate complexity to show that the orbitally induced shift from an interglacial to a pre-glacial climate is highly sensitive to the high northern latitudes moisture budget. Using the insolation forcing alone, the model produces a first order response of sea surface temperatures and thermohaline circulation evolution which agrees with the available geological data. Under the same gradual insolation evolution, adding a small freshwater input into the Arctic Ocean induces a rapid climate switch from an interglacial to a pre-glacial mode. These results suggest a simple connection between orbital forcing and the thermohaline circulation through a freshwater threshold within the ocean-atmosphere-sea-ice system. Modelling the climate evolution from the last interglacial to the start of the last glaciation: The role of Arctic Ocean freshwater budget, Geophys.
author2 Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE)
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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA))
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
Modélisation du climat (CLIM)
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA))
Paléocéanographie (PALEOCEAN)
Potsdam Institute for Climate Impact Research (PIK)
format Article in Journal/Newspaper
author Khodri, M.
Ramstein, Gilles
Paillard, D.
Duplessy, J.
Kageyama, M.
Ganopolski, A.
author_facet Khodri, M.
Ramstein, Gilles
Paillard, D.
Duplessy, J.
Kageyama, M.
Ganopolski, A.
author_sort Khodri, M.
title Modelling the climate evolution from the last interglacial to the start of the last glaciation: The role of Arctic Ocean freshwater budget
title_short Modelling the climate evolution from the last interglacial to the start of the last glaciation: The role of Arctic Ocean freshwater budget
title_full Modelling the climate evolution from the last interglacial to the start of the last glaciation: The role of Arctic Ocean freshwater budget
title_fullStr Modelling the climate evolution from the last interglacial to the start of the last glaciation: The role of Arctic Ocean freshwater budget
title_full_unstemmed Modelling the climate evolution from the last interglacial to the start of the last glaciation: The role of Arctic Ocean freshwater budget
title_sort modelling the climate evolution from the last interglacial to the start of the last glaciation: the role of arctic ocean freshwater budget
publisher HAL CCSD
publishDate 2003
url https://hal.science/hal-02930154
https://hal.science/hal-02930154/document
https://hal.science/hal-02930154/file/2003GL017108.pdf
https://doi.org/10.1029/2003GL017108
genre Arctic
Arctic Ocean
Sea ice
genre_facet Arctic
Arctic Ocean
Sea ice
op_source ISSN: 0094-8276
EISSN: 1944-8007
Geophysical Research Letters
https://hal.science/hal-02930154
Geophysical Research Letters, 2003, 30 (12), ⟨10.1029/2003GL017108⟩
op_relation info:eu-repo/semantics/altIdentifier/doi/10.1029/2003GL017108
hal-02930154
https://hal.science/hal-02930154
https://hal.science/hal-02930154/document
https://hal.science/hal-02930154/file/2003GL017108.pdf
doi:10.1029/2003GL017108
op_rights info:eu-repo/semantics/OpenAccess
op_doi https://doi.org/10.1029/2003GL017108
container_title Geophysical Research Letters
container_volume 30
container_issue 12
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