Holocene hydrological cycle changes in the Southern Hemisphere documented in East Antarctic deuterium excess records
International audience Four Holocene-long East Antarctic deuterium excess records are used to study past changes of the hydrological cycle in the Southern Hemisphere. We combine simple and complex isotopic models to quantify the relationships between Antarctic deuterium excess fluctuations and the s...
Published in: | Climate Dynamics |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2001
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Online Access: | https://hal.science/hal-03102680 https://doi.org/10.1007/PL00007928 |
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ftunivnantes:oai:HAL:hal-03102680v1 |
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Université de Nantes: HAL-UNIV-NANTES |
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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 Vimeux, F. Masson, V. Jouzel, J. Petit, J.R. Steig, E. Stievenard, M. Vaikmae, R. White, J.W.C. Holocene hydrological cycle changes in the Southern Hemisphere documented in East Antarctic deuterium excess records |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Four Holocene-long East Antarctic deuterium excess records are used to study past changes of the hydrological cycle in the Southern Hemisphere. We combine simple and complex isotopic models to quantify the relationships between Antarctic deuterium excess fluctuations and the sea surface temperature (SST) integrated over the moisture source areas for Antarctic snow. The common deuterium excess increasing trend during the first half of the Holocene is therefore interpreted in terms of a warming of the average ocean moisture source regions over this time. Available Southern Hemisphere SST records exhibit opposite trends at low latitudes (warming) and at high latitudes (cooling) during the Holocene. The agreement between the Antarctic deuterium excess and low-latitude SST trends supports the idea that the tropics dominate in providing moisture for Antarctic precipitation. The opposite trends in SSTs at low and high latitudes can potentially be explained by the decreasing obliquity during the Holocene inducing opposite trends in the local mean annual insolation between low and high latitudes. It also implies an increased latitudinal insolation gradient that in turn can maintain a stronger atmospheric circulation transporting more tropical moisture to Antarctica. This mechanism is supported by results from a mid-Holocene climate simulation performed using a coupled ocean-atmosphere model. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) 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) Department of Earth and Environmental Science Philadelphia University of Pennsylvania Géochrononologie Traceurs Archéométrie (GEOTRAC) Tallinn Technical University Institute of Arctic Alpine Research University of Colorado Boulder (INSTAAR) University of Colorado Boulder |
format |
Article in Journal/Newspaper |
author |
Vimeux, F. Masson, V. Jouzel, J. Petit, J.R. Steig, E. Stievenard, M. Vaikmae, R. White, J.W.C. |
author_facet |
Vimeux, F. Masson, V. Jouzel, J. Petit, J.R. Steig, E. Stievenard, M. Vaikmae, R. White, J.W.C. |
author_sort |
Vimeux, F. |
title |
Holocene hydrological cycle changes in the Southern Hemisphere documented in East Antarctic deuterium excess records |
title_short |
Holocene hydrological cycle changes in the Southern Hemisphere documented in East Antarctic deuterium excess records |
title_full |
Holocene hydrological cycle changes in the Southern Hemisphere documented in East Antarctic deuterium excess records |
title_fullStr |
Holocene hydrological cycle changes in the Southern Hemisphere documented in East Antarctic deuterium excess records |
title_full_unstemmed |
Holocene hydrological cycle changes in the Southern Hemisphere documented in East Antarctic deuterium excess records |
title_sort |
holocene hydrological cycle changes in the southern hemisphere documented in east antarctic deuterium excess records |
publisher |
HAL CCSD |
publishDate |
2001 |
url |
https://hal.science/hal-03102680 https://doi.org/10.1007/PL00007928 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
ISSN: 0930-7575 EISSN: 1432-0894 Climate Dynamics https://hal.science/hal-03102680 Climate Dynamics, 2001, 17 (7), pp.503-513. ⟨10.1007/PL00007928⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/PL00007928 hal-03102680 https://hal.science/hal-03102680 doi:10.1007/PL00007928 |
op_doi |
https://doi.org/10.1007/PL00007928 |
container_title |
Climate Dynamics |
container_volume |
17 |
container_issue |
7 |
container_start_page |
503 |
op_container_end_page |
513 |
_version_ |
1766198843807891456 |
spelling |
ftunivnantes:oai:HAL:hal-03102680v1 2023-05-15T13:44:13+02:00 Holocene hydrological cycle changes in the Southern Hemisphere documented in East Antarctic deuterium excess records Vimeux, F. Masson, V. Jouzel, J. Petit, J.R. Steig, E. Stievenard, M. Vaikmae, R. White, J.W.C. Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) 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) Department of Earth and Environmental Science Philadelphia University of Pennsylvania Géochrononologie Traceurs Archéométrie (GEOTRAC) Tallinn Technical University Institute of Arctic Alpine Research University of Colorado Boulder (INSTAAR) University of Colorado Boulder 2001-04-04 https://hal.science/hal-03102680 https://doi.org/10.1007/PL00007928 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/PL00007928 hal-03102680 https://hal.science/hal-03102680 doi:10.1007/PL00007928 ISSN: 0930-7575 EISSN: 1432-0894 Climate Dynamics https://hal.science/hal-03102680 Climate Dynamics, 2001, 17 (7), pp.503-513. ⟨10.1007/PL00007928⟩ [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 2001 ftunivnantes https://doi.org/10.1007/PL00007928 2023-03-01T02:44:57Z International audience Four Holocene-long East Antarctic deuterium excess records are used to study past changes of the hydrological cycle in the Southern Hemisphere. We combine simple and complex isotopic models to quantify the relationships between Antarctic deuterium excess fluctuations and the sea surface temperature (SST) integrated over the moisture source areas for Antarctic snow. The common deuterium excess increasing trend during the first half of the Holocene is therefore interpreted in terms of a warming of the average ocean moisture source regions over this time. Available Southern Hemisphere SST records exhibit opposite trends at low latitudes (warming) and at high latitudes (cooling) during the Holocene. The agreement between the Antarctic deuterium excess and low-latitude SST trends supports the idea that the tropics dominate in providing moisture for Antarctic precipitation. The opposite trends in SSTs at low and high latitudes can potentially be explained by the decreasing obliquity during the Holocene inducing opposite trends in the local mean annual insolation between low and high latitudes. It also implies an increased latitudinal insolation gradient that in turn can maintain a stronger atmospheric circulation transporting more tropical moisture to Antarctica. This mechanism is supported by results from a mid-Holocene climate simulation performed using a coupled ocean-atmosphere model. Article in Journal/Newspaper Antarc* Antarctic Antarctica Université de Nantes: HAL-UNIV-NANTES Antarctic The Antarctic Climate Dynamics 17 7 503 513 |