Simulated antarctic precipitation and surface mass balance of the end of the 20th and 21st centuries
International audience The aim of this work is to assess potential future Antarctic surface mass balance changes, the underlying mechanisms, and the impact of these changes on global sea level. To this aim, this paper presents simulations of the Antarctic climate for the end of the 20th and 21st cen...
Published in: | Climate Dynamics |
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Main Authors: | , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2007
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Online Access: | https://hal.science/hal-00184741 https://hal.science/hal-00184741/document https://hal.science/hal-00184741/file/Krinner.Magand.ea-cdyn-accept.pdf https://doi.org/10.1007/s00382-006-0177-x |
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École des Ponts ParisTech: HAL |
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English |
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[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Krinner, Gerhard Magand, O. Simmonds, I. Genthon, C. Dufresne, Jean-Louis Simulated antarctic precipitation and surface mass balance of the end of the 20th and 21st centuries |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience The aim of this work is to assess potential future Antarctic surface mass balance changes, the underlying mechanisms, and the impact of these changes on global sea level. To this aim, this paper presents simulations of the Antarctic climate for the end of the 20th and 21st centuries. The simulations were carried out with a stretched-grid atmospheric general circulation model, allowing for high horizontal resolution (60 km) over Antarctica. It is found that the simulated present-day surface mass balance is good on continental scales. Errors on regional scales are moderate when observed sea surface conditions are used; more significant regional biases appear when sea surface conditions from a coupled model run are prescribed. The simulated Antarctic surface mass balance increases by 32 mm water equivalent per year in the next century, corresponding to a sea level decrease of 1.2 mm yr-1 by the end of the 21st century. This surface mass balance increase is largely due to precipitation changes, while changes in snow melt and turbulent latent surface fluxes are weak. The temperature increase leads to an increased moisture transport towards the interior of the continent because of the higher moisture holding capacity of warmer air, but changes in atmospheric dynamics, in particular off the Antarctic coast, regionally modulate this signal. |
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) School of Earth Sciences Melbourne Faculty of Science Melbourne University of Melbourne-University of Melbourne Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) |
format |
Article in Journal/Newspaper |
author |
Krinner, Gerhard Magand, O. Simmonds, I. Genthon, C. Dufresne, Jean-Louis |
author_facet |
Krinner, Gerhard Magand, O. Simmonds, I. Genthon, C. Dufresne, Jean-Louis |
author_sort |
Krinner, Gerhard |
title |
Simulated antarctic precipitation and surface mass balance of the end of the 20th and 21st centuries |
title_short |
Simulated antarctic precipitation and surface mass balance of the end of the 20th and 21st centuries |
title_full |
Simulated antarctic precipitation and surface mass balance of the end of the 20th and 21st centuries |
title_fullStr |
Simulated antarctic precipitation and surface mass balance of the end of the 20th and 21st centuries |
title_full_unstemmed |
Simulated antarctic precipitation and surface mass balance of the end of the 20th and 21st centuries |
title_sort |
simulated antarctic precipitation and surface mass balance of the end of the 20th and 21st centuries |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00184741 https://hal.science/hal-00184741/document https://hal.science/hal-00184741/file/Krinner.Magand.ea-cdyn-accept.pdf https://doi.org/10.1007/s00382-006-0177-x |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
ISSN: 0930-7575 EISSN: 1432-0894 Climate Dynamics https://hal.science/hal-00184741 Climate Dynamics, 2007, 28, pp.215-230. ⟨10.1007/s00382-006-0177-x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00382-006-0177-x hal-00184741 https://hal.science/hal-00184741 https://hal.science/hal-00184741/document https://hal.science/hal-00184741/file/Krinner.Magand.ea-cdyn-accept.pdf doi:10.1007/s00382-006-0177-x |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1007/s00382-006-0177-x |
container_title |
Climate Dynamics |
container_volume |
28 |
container_issue |
2-3 |
container_start_page |
215 |
op_container_end_page |
230 |
_version_ |
1810289161108717568 |
spelling |
ftecoleponts:oai:HAL:hal-00184741v1 2024-09-15T17:48:06+00:00 Simulated antarctic precipitation and surface mass balance of the end of the 20th and 21st centuries Krinner, Gerhard Magand, O. Simmonds, I. Genthon, C. Dufresne, Jean-Louis 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) School of Earth Sciences Melbourne Faculty of Science Melbourne University of Melbourne-University of Melbourne Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) 2007-02 https://hal.science/hal-00184741 https://hal.science/hal-00184741/document https://hal.science/hal-00184741/file/Krinner.Magand.ea-cdyn-accept.pdf https://doi.org/10.1007/s00382-006-0177-x en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00382-006-0177-x hal-00184741 https://hal.science/hal-00184741 https://hal.science/hal-00184741/document https://hal.science/hal-00184741/file/Krinner.Magand.ea-cdyn-accept.pdf doi:10.1007/s00382-006-0177-x info:eu-repo/semantics/OpenAccess ISSN: 0930-7575 EISSN: 1432-0894 Climate Dynamics https://hal.science/hal-00184741 Climate Dynamics, 2007, 28, pp.215-230. ⟨10.1007/s00382-006-0177-x⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2007 ftecoleponts https://doi.org/10.1007/s00382-006-0177-x 2024-08-13T23:47:27Z International audience The aim of this work is to assess potential future Antarctic surface mass balance changes, the underlying mechanisms, and the impact of these changes on global sea level. To this aim, this paper presents simulations of the Antarctic climate for the end of the 20th and 21st centuries. The simulations were carried out with a stretched-grid atmospheric general circulation model, allowing for high horizontal resolution (60 km) over Antarctica. It is found that the simulated present-day surface mass balance is good on continental scales. Errors on regional scales are moderate when observed sea surface conditions are used; more significant regional biases appear when sea surface conditions from a coupled model run are prescribed. The simulated Antarctic surface mass balance increases by 32 mm water equivalent per year in the next century, corresponding to a sea level decrease of 1.2 mm yr-1 by the end of the 21st century. This surface mass balance increase is largely due to precipitation changes, while changes in snow melt and turbulent latent surface fluxes are weak. The temperature increase leads to an increased moisture transport towards the interior of the continent because of the higher moisture holding capacity of warmer air, but changes in atmospheric dynamics, in particular off the Antarctic coast, regionally modulate this signal. Article in Journal/Newspaper Antarc* Antarctic Antarctica École des Ponts ParisTech: HAL Climate Dynamics 28 2-3 215 230 |