Coupling an AGCM with an ISM to investigate the ice sheets mass balance at the Last Glacial Maximum
International audience The aim of this paper is to investigate the consistency between the ice sheets reconstruction at the LGM and the climate simulated by AGCM. In particular, to investigate whether the laurentian and the fennoscandian ice sheets have an equilibrated mass balance, we use two compl...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , , |
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
1998
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Online Access: | https://hal.science/hal-03011998 https://hal.science/hal-03011998/document https://hal.science/hal-03011998/file/98GL00133.pdf https://doi.org/10.1029/98GL00133 |
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ftunivsavoie:oai:HAL:hal-03011998v1 |
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Open Polar |
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Université Savoie Mont Blanc: HAL |
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ftunivsavoie |
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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 Fabre, Adeline Ramstein, Gilles Ritz, Catherine Pinot, Sophie Fournier, Nicolas Coupling an AGCM with an ISM to investigate the ice sheets mass balance at the Last Glacial Maximum |
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 aim of this paper is to investigate the consistency between the ice sheets reconstruction at the LGM and the climate simulated by AGCM. In particular, to investigate whether the laurentian and the fennoscandian ice sheets have an equilibrated mass balance, we use two complementary approaches. First we analyze the changes of snow and water budgets over the ice sheets, only using the model results of LGM runs. Second, we use a thermomechanical ice sheet model [Ritz et al., 1997] forced with the AGCM simulated climate, to perform long term runs at finer spatial resolution. Analyzing the results obtained with both approaches, we show that the ice sheet mass balance computed directly from AGCM results may be biaised. Moreover we show, using two versions of the LMD AGCM, that the ice sheet mass balance computed by the ISM is drastically sensitive to the summer surface temperatures simulated by the AGCM. |
author2 |
Laboratoire de glaciologie et géophysique de l'environnement (LGGE) 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 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)-Centre National de la Recherche Scientifique (CNRS) 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 |
Fabre, Adeline Ramstein, Gilles Ritz, Catherine Pinot, Sophie Fournier, Nicolas |
author_facet |
Fabre, Adeline Ramstein, Gilles Ritz, Catherine Pinot, Sophie Fournier, Nicolas |
author_sort |
Fabre, Adeline |
title |
Coupling an AGCM with an ISM to investigate the ice sheets mass balance at the Last Glacial Maximum |
title_short |
Coupling an AGCM with an ISM to investigate the ice sheets mass balance at the Last Glacial Maximum |
title_full |
Coupling an AGCM with an ISM to investigate the ice sheets mass balance at the Last Glacial Maximum |
title_fullStr |
Coupling an AGCM with an ISM to investigate the ice sheets mass balance at the Last Glacial Maximum |
title_full_unstemmed |
Coupling an AGCM with an ISM to investigate the ice sheets mass balance at the Last Glacial Maximum |
title_sort |
coupling an agcm with an ism to investigate the ice sheets mass balance at the last glacial maximum |
publisher |
HAL CCSD |
publishDate |
1998 |
url |
https://hal.science/hal-03011998 https://hal.science/hal-03011998/document https://hal.science/hal-03011998/file/98GL00133.pdf https://doi.org/10.1029/98GL00133 |
genre |
Fennoscandian Ice Sheet |
genre_facet |
Fennoscandian Ice Sheet |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03011998 Geophysical Research Letters, 1998, 25 (4), pp.531-534. ⟨10.1029/98GL00133⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/98GL00133 hal-03011998 https://hal.science/hal-03011998 https://hal.science/hal-03011998/document https://hal.science/hal-03011998/file/98GL00133.pdf doi:10.1029/98GL00133 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/98GL00133 |
container_title |
Geophysical Research Letters |
container_volume |
25 |
container_issue |
4 |
container_start_page |
531 |
op_container_end_page |
534 |
_version_ |
1797582553484361728 |
spelling |
ftunivsavoie:oai:HAL:hal-03011998v1 2024-04-28T08:18:42+00:00 Coupling an AGCM with an ISM to investigate the ice sheets mass balance at the Last Glacial Maximum Fabre, Adeline Ramstein, Gilles Ritz, Catherine Pinot, Sophie Fournier, Nicolas Laboratoire de glaciologie et géophysique de l'environnement (LGGE) 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 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)-Centre National de la Recherche Scientifique (CNRS) 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)) 1998-02-15 https://hal.science/hal-03011998 https://hal.science/hal-03011998/document https://hal.science/hal-03011998/file/98GL00133.pdf https://doi.org/10.1029/98GL00133 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/98GL00133 hal-03011998 https://hal.science/hal-03011998 https://hal.science/hal-03011998/document https://hal.science/hal-03011998/file/98GL00133.pdf doi:10.1029/98GL00133 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03011998 Geophysical Research Letters, 1998, 25 (4), pp.531-534. ⟨10.1029/98GL00133⟩ [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 1998 ftunivsavoie https://doi.org/10.1029/98GL00133 2024-04-11T00:43:53Z International audience The aim of this paper is to investigate the consistency between the ice sheets reconstruction at the LGM and the climate simulated by AGCM. In particular, to investigate whether the laurentian and the fennoscandian ice sheets have an equilibrated mass balance, we use two complementary approaches. First we analyze the changes of snow and water budgets over the ice sheets, only using the model results of LGM runs. Second, we use a thermomechanical ice sheet model [Ritz et al., 1997] forced with the AGCM simulated climate, to perform long term runs at finer spatial resolution. Analyzing the results obtained with both approaches, we show that the ice sheet mass balance computed directly from AGCM results may be biaised. Moreover we show, using two versions of the LMD AGCM, that the ice sheet mass balance computed by the ISM is drastically sensitive to the summer surface temperatures simulated by the AGCM. Article in Journal/Newspaper Fennoscandian Ice Sheet Université Savoie Mont Blanc: HAL Geophysical Research Letters 25 4 531 534 |