Investigating the evolution of major Northern Hemisphere ice sheets during the last glacial-interglacial cycle
International audience A 2.5-dimensional climate model of intermediate complexity, CLIMBER-2, fully coupled with the GREM-LINS 3-D thermo-mechanical ice sheet model is used to simulate the evolution of major Northern Hemisphere ice sheets during the last glacial-interglacial cycle and to investigate...
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Online Access: | https://hal.science/hal-02930738 https://hal.science/hal-02930738/document https://hal.science/hal-02930738/file/cp-5-329-2009.pdf https://doi.org/10.5194/cp-5-329-2009 |
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ftinsu:oai:HAL:hal-02930738v1 2024-04-28T08:24:53+00:00 Investigating the evolution of major Northern Hemisphere ice sheets during the last glacial-interglacial cycle Bonelli, S. Charbit, S. Kageyama, M. Woillez, M.-N. Ramstein, G. Dumas, C. Quiquet, 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)) 2009 https://hal.science/hal-02930738 https://hal.science/hal-02930738/document https://hal.science/hal-02930738/file/cp-5-329-2009.pdf https://doi.org/10.5194/cp-5-329-2009 en eng HAL CCSD European Geosciences Union (EGU) info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-5-329-2009 hal-02930738 https://hal.science/hal-02930738 https://hal.science/hal-02930738/document https://hal.science/hal-02930738/file/cp-5-329-2009.pdf doi:10.5194/cp-5-329-2009 info:eu-repo/semantics/OpenAccess ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://hal.science/hal-02930738 Climate of the Past, 2009, 5 (3), pp.329-345. ⟨10.5194/cp-5-329-2009⟩ [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 2009 ftinsu https://doi.org/10.5194/cp-5-329-2009 2024-04-05T00:41:30Z International audience A 2.5-dimensional climate model of intermediate complexity, CLIMBER-2, fully coupled with the GREM-LINS 3-D thermo-mechanical ice sheet model is used to simulate the evolution of major Northern Hemisphere ice sheets during the last glacial-interglacial cycle and to investigate the ice sheets responses to both insolation and atmospheric CO 2 concentration. This model reproduces the main phases of advance and retreat of Northern Hemisphere ice sheets during the last glacial cycle, although the amplitude of these variations is less pronounced than those based on sea level reconstructions. At the last glacial maximum, the simulated ice volume is 52.5×10 15 m 3 and the spatial distribution of both the American and Eurasian ice complexes is in reasonable agreement with observations, with the exception of the marine parts of these former ice sheets. A set of sensitivity studies has also been performed to assess the sensitivity of the Northern Hemisphere ice sheets to both insolation and atmospheric CO 2. Our results suggest that the decrease of summer insolation is the main factor responsible for the early build up of the North Ameri-can ice sheet around 120 kyr BP, in agreement with benthic foraminifera δ 18 O signals. In contrast, low insolation and low atmospheric CO 2 concentration are both necessary to trigger a long-lasting glaciation over Eurasia. Article in Journal/Newspaper Ice Sheet Institut national des sciences de l'Univers: HAL-INSU Climate of the Past 5 3 329 345 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
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 Bonelli, S. Charbit, S. Kageyama, M. Woillez, M.-N. Ramstein, G. Dumas, C. Quiquet, A. Investigating the evolution of major Northern Hemisphere ice sheets during the last glacial-interglacial cycle |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience A 2.5-dimensional climate model of intermediate complexity, CLIMBER-2, fully coupled with the GREM-LINS 3-D thermo-mechanical ice sheet model is used to simulate the evolution of major Northern Hemisphere ice sheets during the last glacial-interglacial cycle and to investigate the ice sheets responses to both insolation and atmospheric CO 2 concentration. This model reproduces the main phases of advance and retreat of Northern Hemisphere ice sheets during the last glacial cycle, although the amplitude of these variations is less pronounced than those based on sea level reconstructions. At the last glacial maximum, the simulated ice volume is 52.5×10 15 m 3 and the spatial distribution of both the American and Eurasian ice complexes is in reasonable agreement with observations, with the exception of the marine parts of these former ice sheets. A set of sensitivity studies has also been performed to assess the sensitivity of the Northern Hemisphere ice sheets to both insolation and atmospheric CO 2. Our results suggest that the decrease of summer insolation is the main factor responsible for the early build up of the North Ameri-can ice sheet around 120 kyr BP, in agreement with benthic foraminifera δ 18 O signals. In contrast, low insolation and low atmospheric CO 2 concentration are both necessary to trigger a long-lasting glaciation over Eurasia. |
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)) |
format |
Article in Journal/Newspaper |
author |
Bonelli, S. Charbit, S. Kageyama, M. Woillez, M.-N. Ramstein, G. Dumas, C. Quiquet, A. |
author_facet |
Bonelli, S. Charbit, S. Kageyama, M. Woillez, M.-N. Ramstein, G. Dumas, C. Quiquet, A. |
author_sort |
Bonelli, S. |
title |
Investigating the evolution of major Northern Hemisphere ice sheets during the last glacial-interglacial cycle |
title_short |
Investigating the evolution of major Northern Hemisphere ice sheets during the last glacial-interglacial cycle |
title_full |
Investigating the evolution of major Northern Hemisphere ice sheets during the last glacial-interglacial cycle |
title_fullStr |
Investigating the evolution of major Northern Hemisphere ice sheets during the last glacial-interglacial cycle |
title_full_unstemmed |
Investigating the evolution of major Northern Hemisphere ice sheets during the last glacial-interglacial cycle |
title_sort |
investigating the evolution of major northern hemisphere ice sheets during the last glacial-interglacial cycle |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-02930738 https://hal.science/hal-02930738/document https://hal.science/hal-02930738/file/cp-5-329-2009.pdf https://doi.org/10.5194/cp-5-329-2009 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://hal.science/hal-02930738 Climate of the Past, 2009, 5 (3), pp.329-345. ⟨10.5194/cp-5-329-2009⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-5-329-2009 hal-02930738 https://hal.science/hal-02930738 https://hal.science/hal-02930738/document https://hal.science/hal-02930738/file/cp-5-329-2009.pdf doi:10.5194/cp-5-329-2009 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/cp-5-329-2009 |
container_title |
Climate of the Past |
container_volume |
5 |
container_issue |
3 |
container_start_page |
329 |
op_container_end_page |
345 |
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1797584893450911744 |