Antarctic surface temperature and elevation during the Last Glacial Maximum
International audience Water-stable isotopes in polar ice cores are a widely used temperature proxy in paleoclimate reconstruction, yet calibration remains challenging in East Antarctica. Here, we reconstruct the magnitude and spatial pattern of Last Glacial Maximum surface cooling in Antarctica usi...
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Online Access: | https://hal.science/hal-03249154 https://hal.science/hal-03249154/document https://hal.science/hal-03249154/file/buizert1.pdf https://doi.org/10.1126/science.abd2897 |
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ftuniversailles:oai:HAL:hal-03249154v1 2024-04-28T07:56:50+00:00 Antarctic surface temperature and elevation during the Last Glacial Maximum Buizert, Christo Fudge, T. Roberts, William Steig, Eric Sherriff-Tadano, Sam Ritz, Catherine Lefebvre, Eric Edwards, Jon Kawamura, Kenji Oyabu, Ikumi Motoyama, Hideaki Kahle, Emma Jones, Tyler Abe-Ouchi, Ayako Obase, Takashi Martin, Carlos Corr, Hugh Severinghaus, Jeffrey Beaudette, Ross Epifanio, Jenna Brook, Edward Martin, Kaden Chappellaz, Jérôme Aoki, Shuji Nakazawa, Takakiyo Sowers, Todd Alley, Richard Ahn, Jinho Sigl, Michael Severi, Mirko Dunbar, Nelia Svensson, Anders Fegyveresi, John He, Chengfei Liu, Zhengyu Zhu, Jiang Otto-Bliesner, Bette Lipenkov, Vladimir Kageyama, Masa Schwander, Jakob Université Grenoble Alpes (UGA) 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)) 2021-06-03 https://hal.science/hal-03249154 https://hal.science/hal-03249154/document https://hal.science/hal-03249154/file/buizert1.pdf https://doi.org/10.1126/science.abd2897 en eng HAL CCSD American Association for the Advancement of Science (AAAS) info:eu-repo/semantics/altIdentifier/doi/10.1126/science.abd2897 hal-03249154 https://hal.science/hal-03249154 https://hal.science/hal-03249154/document https://hal.science/hal-03249154/file/buizert1.pdf doi:10.1126/science.abd2897 info:eu-repo/semantics/OpenAccess ISSN: 0036-8075 EISSN: 1095-9203 Science https://hal.science/hal-03249154 Science, 2021, 372 (6546), pp.1097-1101. ⟨10.1126/science.abd2897⟩ [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 2021 ftuniversailles https://doi.org/10.1126/science.abd2897 2024-04-11T00:03:41Z International audience Water-stable isotopes in polar ice cores are a widely used temperature proxy in paleoclimate reconstruction, yet calibration remains challenging in East Antarctica. Here, we reconstruct the magnitude and spatial pattern of Last Glacial Maximum surface cooling in Antarctica using borehole thermometry and firn properties in seven ice cores. West Antarctic sites cooled ~10°C relative to the preindustrial period. East Antarctic sites show a range from ~4° to ~7°C cooling, which is consistent with the results of global climate models when the effects of topographic changes indicated with ice core air-content data are included, but less than those indicated with the use of water-stable isotopes calibrated against modern spatial gradients. An altered Antarctic temperature inversion during the glacial reconciles our estimates with water-isotope observations. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica ice core Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Science 372 6546 1097 1101 |
institution |
Open Polar |
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Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
ftuniversailles |
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 Buizert, Christo Fudge, T. Roberts, William Steig, Eric Sherriff-Tadano, Sam Ritz, Catherine Lefebvre, Eric Edwards, Jon Kawamura, Kenji Oyabu, Ikumi Motoyama, Hideaki Kahle, Emma Jones, Tyler Abe-Ouchi, Ayako Obase, Takashi Martin, Carlos Corr, Hugh Severinghaus, Jeffrey Beaudette, Ross Epifanio, Jenna Brook, Edward Martin, Kaden Chappellaz, Jérôme Aoki, Shuji Nakazawa, Takakiyo Sowers, Todd Alley, Richard Ahn, Jinho Sigl, Michael Severi, Mirko Dunbar, Nelia Svensson, Anders Fegyveresi, John He, Chengfei Liu, Zhengyu Zhu, Jiang Otto-Bliesner, Bette Lipenkov, Vladimir Kageyama, Masa Schwander, Jakob Antarctic surface temperature and elevation during 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 Water-stable isotopes in polar ice cores are a widely used temperature proxy in paleoclimate reconstruction, yet calibration remains challenging in East Antarctica. Here, we reconstruct the magnitude and spatial pattern of Last Glacial Maximum surface cooling in Antarctica using borehole thermometry and firn properties in seven ice cores. West Antarctic sites cooled ~10°C relative to the preindustrial period. East Antarctic sites show a range from ~4° to ~7°C cooling, which is consistent with the results of global climate models when the effects of topographic changes indicated with ice core air-content data are included, but less than those indicated with the use of water-stable isotopes calibrated against modern spatial gradients. An altered Antarctic temperature inversion during the glacial reconciles our estimates with water-isotope observations. |
author2 |
Université Grenoble Alpes (UGA) 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 |
Buizert, Christo Fudge, T. Roberts, William Steig, Eric Sherriff-Tadano, Sam Ritz, Catherine Lefebvre, Eric Edwards, Jon Kawamura, Kenji Oyabu, Ikumi Motoyama, Hideaki Kahle, Emma Jones, Tyler Abe-Ouchi, Ayako Obase, Takashi Martin, Carlos Corr, Hugh Severinghaus, Jeffrey Beaudette, Ross Epifanio, Jenna Brook, Edward Martin, Kaden Chappellaz, Jérôme Aoki, Shuji Nakazawa, Takakiyo Sowers, Todd Alley, Richard Ahn, Jinho Sigl, Michael Severi, Mirko Dunbar, Nelia Svensson, Anders Fegyveresi, John He, Chengfei Liu, Zhengyu Zhu, Jiang Otto-Bliesner, Bette Lipenkov, Vladimir Kageyama, Masa Schwander, Jakob |
author_facet |
Buizert, Christo Fudge, T. Roberts, William Steig, Eric Sherriff-Tadano, Sam Ritz, Catherine Lefebvre, Eric Edwards, Jon Kawamura, Kenji Oyabu, Ikumi Motoyama, Hideaki Kahle, Emma Jones, Tyler Abe-Ouchi, Ayako Obase, Takashi Martin, Carlos Corr, Hugh Severinghaus, Jeffrey Beaudette, Ross Epifanio, Jenna Brook, Edward Martin, Kaden Chappellaz, Jérôme Aoki, Shuji Nakazawa, Takakiyo Sowers, Todd Alley, Richard Ahn, Jinho Sigl, Michael Severi, Mirko Dunbar, Nelia Svensson, Anders Fegyveresi, John He, Chengfei Liu, Zhengyu Zhu, Jiang Otto-Bliesner, Bette Lipenkov, Vladimir Kageyama, Masa Schwander, Jakob |
author_sort |
Buizert, Christo |
title |
Antarctic surface temperature and elevation during the Last Glacial Maximum |
title_short |
Antarctic surface temperature and elevation during the Last Glacial Maximum |
title_full |
Antarctic surface temperature and elevation during the Last Glacial Maximum |
title_fullStr |
Antarctic surface temperature and elevation during the Last Glacial Maximum |
title_full_unstemmed |
Antarctic surface temperature and elevation during the Last Glacial Maximum |
title_sort |
antarctic surface temperature and elevation during the last glacial maximum |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03249154 https://hal.science/hal-03249154/document https://hal.science/hal-03249154/file/buizert1.pdf https://doi.org/10.1126/science.abd2897 |
genre |
Antarc* Antarctic Antarctica East Antarctica ice core |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica ice core |
op_source |
ISSN: 0036-8075 EISSN: 1095-9203 Science https://hal.science/hal-03249154 Science, 2021, 372 (6546), pp.1097-1101. ⟨10.1126/science.abd2897⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1126/science.abd2897 hal-03249154 https://hal.science/hal-03249154 https://hal.science/hal-03249154/document https://hal.science/hal-03249154/file/buizert1.pdf doi:10.1126/science.abd2897 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1126/science.abd2897 |
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Science |
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6546 |
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1101 |
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