Asynchrony between Antarctic temperature and CO$_2$ associated with obliquity over the past 720,000 years
International audience The δD temperature proxy in Antarctic ice cores varies in parallel with CO$_2$ through glacial cycles. However, these variables display a puzzling asynchrony. Well-dated records of Southern Ocean temperature will provide crucial information because the Southern Ocean is likely...
Published in: | Nature Communications |
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Main Authors: | , , , , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2018
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Online Access: | https://doi.org/10.1038/s41467-018-03328-3 https://hal-cea.archives-ouvertes.fr/cea-01875223/file/s41467-018-03328-3.pdf https://hal-cea.archives-ouvertes.fr/cea-01875223 |
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language |
English |
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geo envir |
spellingShingle |
geo envir Uemura, Ryu Motoyama, Hideaki Masson-Delmotte, Valérie Jouzel, Jean Kawamura, Kenji Goto-Azuma, Kumiko Fujita, Shuji Kuramoto, Takayuki Hirabayashi, Motohiro Miyake, Takayuki Ohno, Hiroshi Fujita, Koji Abe-Ouchi, Ayako Iizuka, Yoshinori Horikawa, Shinichiro Igarashi, Makoto Suzuki, Keisuke Suzuki, Toshitaka Fujii, Yoshiyuki Asynchrony between Antarctic temperature and CO$_2$ associated with obliquity over the past 720,000 years |
topic_facet |
geo envir |
description |
International audience The δD temperature proxy in Antarctic ice cores varies in parallel with CO$_2$ through glacial cycles. However, these variables display a puzzling asynchrony. Well-dated records of Southern Ocean temperature will provide crucial information because the Southern Ocean is likely key in regulating CO$_2$ variations. Here, we perform multiple isotopic analyses on an Antarctic ice core and estimate temperature variations at this site and in the oceanic moisture source over the past 720,000 years, which extend the longest records by 300,000 years. Antarctic temperature is affected by large variations in local insolation that are induced by obliquity. At the obliquity periodicity, the Antarctic and ocean temperatures lag annual mean insolation. Further, the magnitude of the phase lag is minimal during low eccentricity periods, suggesting that secular changes in the global carbon cycle and the ocean circulation modulate the phase relationship among temperatures, CO$_2$ and insolation in the obliquity frequency band. |
author2 |
University of the Ryukyus Okinawa National Institute of Polar Research Tokyo (NiPR) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) The Graduate University for Advanced Studies, japan (SOKENDAI) Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan Center for Climate System Research Kashiwa (CCSR) The University of Tokyo (UTokyo) Institute of Low Temperature Science Sapporo Hokkaido University Sapporo, Japan Shinshu University Nagano Graduate School of Science and Engineering Yamagata Yamagata University ANR-07-BLAN-0125,DOME A,Dome A : Observation et Modélisation d'un Environnement extrême en Antarctique(2007) ANR-14-CE01-0001,ASUMA,Amélioration de la précision de l'estimation de bilan de masse de surface en Antarctique(2014) |
format |
Article in Journal/Newspaper |
author |
Uemura, Ryu Motoyama, Hideaki Masson-Delmotte, Valérie Jouzel, Jean Kawamura, Kenji Goto-Azuma, Kumiko Fujita, Shuji Kuramoto, Takayuki Hirabayashi, Motohiro Miyake, Takayuki Ohno, Hiroshi Fujita, Koji Abe-Ouchi, Ayako Iizuka, Yoshinori Horikawa, Shinichiro Igarashi, Makoto Suzuki, Keisuke Suzuki, Toshitaka Fujii, Yoshiyuki |
author_facet |
Uemura, Ryu Motoyama, Hideaki Masson-Delmotte, Valérie Jouzel, Jean Kawamura, Kenji Goto-Azuma, Kumiko Fujita, Shuji Kuramoto, Takayuki Hirabayashi, Motohiro Miyake, Takayuki Ohno, Hiroshi Fujita, Koji Abe-Ouchi, Ayako Iizuka, Yoshinori Horikawa, Shinichiro Igarashi, Makoto Suzuki, Keisuke Suzuki, Toshitaka Fujii, Yoshiyuki |
author_sort |
Uemura, Ryu |
title |
Asynchrony between Antarctic temperature and CO$_2$ associated with obliquity over the past 720,000 years |
title_short |
Asynchrony between Antarctic temperature and CO$_2$ associated with obliquity over the past 720,000 years |
title_full |
Asynchrony between Antarctic temperature and CO$_2$ associated with obliquity over the past 720,000 years |
title_fullStr |
Asynchrony between Antarctic temperature and CO$_2$ associated with obliquity over the past 720,000 years |
title_full_unstemmed |
Asynchrony between Antarctic temperature and CO$_2$ associated with obliquity over the past 720,000 years |
title_sort |
asynchrony between antarctic temperature and co$_2$ associated with obliquity over the past 720,000 years |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://doi.org/10.1038/s41467-018-03328-3 https://hal-cea.archives-ouvertes.fr/cea-01875223/file/s41467-018-03328-3.pdf https://hal-cea.archives-ouvertes.fr/cea-01875223 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic ice core Southern Ocean |
genre_facet |
Antarc* Antarctic ice core Southern Ocean |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications Nature Communications, Nature Publishing Group, 2018, 9, pp.961. ⟨10.1038/s41467-018-03328-3⟩ |
op_relation |
cea-01875223 doi:10.1038/s41467-018-03328-3 10670/1.ljt3pe https://hal-cea.archives-ouvertes.fr/cea-01875223/file/s41467-018-03328-3.pdf https://hal-cea.archives-ouvertes.fr/cea-01875223 |
op_rights |
other |
op_doi |
https://doi.org/10.1038/s41467-018-03328-3 |
container_title |
Nature Communications |
container_volume |
9 |
container_issue |
1 |
_version_ |
1766263907746316288 |
spelling |
fttriple:oai:gotriple.eu:10670/1.ljt3pe 2023-05-15T13:56:24+02:00 Asynchrony between Antarctic temperature and CO$_2$ associated with obliquity over the past 720,000 years Uemura, Ryu Motoyama, Hideaki Masson-Delmotte, Valérie Jouzel, Jean Kawamura, Kenji Goto-Azuma, Kumiko Fujita, Shuji Kuramoto, Takayuki Hirabayashi, Motohiro Miyake, Takayuki Ohno, Hiroshi Fujita, Koji Abe-Ouchi, Ayako Iizuka, Yoshinori Horikawa, Shinichiro Igarashi, Makoto Suzuki, Keisuke Suzuki, Toshitaka Fujii, Yoshiyuki University of the Ryukyus Okinawa National Institute of Polar Research Tokyo (NiPR) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) The Graduate University for Advanced Studies, japan (SOKENDAI) Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan Center for Climate System Research Kashiwa (CCSR) The University of Tokyo (UTokyo) Institute of Low Temperature Science Sapporo Hokkaido University Sapporo, Japan Shinshu University Nagano Graduate School of Science and Engineering Yamagata Yamagata University ANR-07-BLAN-0125,DOME A,Dome A : Observation et Modélisation d'un Environnement extrême en Antarctique(2007) ANR-14-CE01-0001,ASUMA,Amélioration de la précision de l'estimation de bilan de masse de surface en Antarctique(2014) 2018-12-01 https://doi.org/10.1038/s41467-018-03328-3 https://hal-cea.archives-ouvertes.fr/cea-01875223/file/s41467-018-03328-3.pdf https://hal-cea.archives-ouvertes.fr/cea-01875223 en eng HAL CCSD Nature Publishing Group cea-01875223 doi:10.1038/s41467-018-03328-3 10670/1.ljt3pe https://hal-cea.archives-ouvertes.fr/cea-01875223/file/s41467-018-03328-3.pdf https://hal-cea.archives-ouvertes.fr/cea-01875223 other Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications Nature Communications, Nature Publishing Group, 2018, 9, pp.961. ⟨10.1038/s41467-018-03328-3⟩ geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.1038/s41467-018-03328-3 2023-01-22T18:02:15Z International audience The δD temperature proxy in Antarctic ice cores varies in parallel with CO$_2$ through glacial cycles. However, these variables display a puzzling asynchrony. Well-dated records of Southern Ocean temperature will provide crucial information because the Southern Ocean is likely key in regulating CO$_2$ variations. Here, we perform multiple isotopic analyses on an Antarctic ice core and estimate temperature variations at this site and in the oceanic moisture source over the past 720,000 years, which extend the longest records by 300,000 years. Antarctic temperature is affected by large variations in local insolation that are induced by obliquity. At the obliquity periodicity, the Antarctic and ocean temperatures lag annual mean insolation. Further, the magnitude of the phase lag is minimal during low eccentricity periods, suggesting that secular changes in the global carbon cycle and the ocean circulation modulate the phase relationship among temperatures, CO$_2$ and insolation in the obliquity frequency band. Article in Journal/Newspaper Antarc* Antarctic ice core Southern Ocean Unknown Antarctic Southern Ocean The Antarctic Nature Communications 9 1 |