Increased variability of the Arctic summer ice extent in a warmer climate
International audience Simulations performed with general circulation models and a model of intermediate complexity show that the variability of the September sea ice extent in the Arctic of the 21st century increases first when the mean extent decreases from present‐day values. A maximum of the var...
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ftunivbrest:oai:HAL:hal-00453446v1 2023-12-24T10:09:12+01:00 Increased variability of the Arctic summer ice extent in a warmer climate Goosse, Hugues Arzel, Olivier M. Bitz, C. de Montety, A. Vancoppenolle, Martin Université Catholique de Louvain = Catholic University of Louvain (UCL) Climate Change Research Centre Sydney (CCRC) University of New South Wales Sydney (UNSW) Laboratoire de physique des océans (LPO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Department of Atmospheric Sciences Seattle University of Washington Seattle Institut d'Astronomie et de Géophysique Georges Lemaître (UCL-ASTR) 2009 https://hal.science/hal-00453446 https://doi.org/10.1029/2009GL040546 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2009GL040546 hal-00453446 https://hal.science/hal-00453446 doi:10.1029/2009GL040546 ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00453446 Geophysical Research Letters, 2009, 36, pp.L23702. ⟨10.1029/2009GL040546⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2009 ftunivbrest https://doi.org/10.1029/2009GL040546 2023-11-28T23:36:07Z International audience Simulations performed with general circulation models and a model of intermediate complexity show that the variability of the September sea ice extent in the Arctic of the 21st century increases first when the mean extent decreases from present‐day values. A maximum of the variance is found when the mean September ice extent is around 3 million km2. For lower extents, the variance declines with the mean extent. The behavior is clearly different in Antarctica where the variance always decreases as the mean ice extent decreases, following roughly a square‐root law compatible with very simple geometric arguments. Several mechanisms are responsible for the non‐linear behavior of the Arctic. However, the strong interhemispheric contrast suggests that the difference in geometrical setting, with an open ocean in the south and a semi‐closed basin in the north, plays a significant role. Article in Journal/Newspaper Antarc* Antarctica Arctic Sea ice Université de Bretagne Occidentale: HAL Arctic Geophysical Research Letters 36 23 |
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Open Polar |
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Université de Bretagne Occidentale: HAL |
op_collection_id |
ftunivbrest |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Goosse, Hugues Arzel, Olivier M. Bitz, C. de Montety, A. Vancoppenolle, Martin Increased variability of the Arctic summer ice extent in a warmer climate |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience Simulations performed with general circulation models and a model of intermediate complexity show that the variability of the September sea ice extent in the Arctic of the 21st century increases first when the mean extent decreases from present‐day values. A maximum of the variance is found when the mean September ice extent is around 3 million km2. For lower extents, the variance declines with the mean extent. The behavior is clearly different in Antarctica where the variance always decreases as the mean ice extent decreases, following roughly a square‐root law compatible with very simple geometric arguments. Several mechanisms are responsible for the non‐linear behavior of the Arctic. However, the strong interhemispheric contrast suggests that the difference in geometrical setting, with an open ocean in the south and a semi‐closed basin in the north, plays a significant role. |
author2 |
Université Catholique de Louvain = Catholic University of Louvain (UCL) Climate Change Research Centre Sydney (CCRC) University of New South Wales Sydney (UNSW) Laboratoire de physique des océans (LPO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Department of Atmospheric Sciences Seattle University of Washington Seattle Institut d'Astronomie et de Géophysique Georges Lemaître (UCL-ASTR) |
format |
Article in Journal/Newspaper |
author |
Goosse, Hugues Arzel, Olivier M. Bitz, C. de Montety, A. Vancoppenolle, Martin |
author_facet |
Goosse, Hugues Arzel, Olivier M. Bitz, C. de Montety, A. Vancoppenolle, Martin |
author_sort |
Goosse, Hugues |
title |
Increased variability of the Arctic summer ice extent in a warmer climate |
title_short |
Increased variability of the Arctic summer ice extent in a warmer climate |
title_full |
Increased variability of the Arctic summer ice extent in a warmer climate |
title_fullStr |
Increased variability of the Arctic summer ice extent in a warmer climate |
title_full_unstemmed |
Increased variability of the Arctic summer ice extent in a warmer climate |
title_sort |
increased variability of the arctic summer ice extent in a warmer climate |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-00453446 https://doi.org/10.1029/2009GL040546 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Antarc* Antarctica Arctic Sea ice |
genre_facet |
Antarc* Antarctica Arctic Sea ice |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00453446 Geophysical Research Letters, 2009, 36, pp.L23702. ⟨10.1029/2009GL040546⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2009GL040546 hal-00453446 https://hal.science/hal-00453446 doi:10.1029/2009GL040546 |
op_doi |
https://doi.org/10.1029/2009GL040546 |
container_title |
Geophysical Research Letters |
container_volume |
36 |
container_issue |
23 |
_version_ |
1786206614996385792 |