Antarctic surface temperature and elevation during the Last Glacial Maximum

Christo Buizert¹, T J Fudge², William H G Roberts³, Eric J Steig², Sam Sherriff-Tadano⁴, Catherine Ritz⁵, Eric Lefebvre⁵, Jon Edwards⁶, Kenji Kawamura^{7

8

9}, Ikumi Oyabu⁷, Hideaki Motoyama⁷, Emma C Kahle², Tyler R Jones¹⁰, Ayako Abe-Ouchi⁴, Takashi Obase⁴, Carlos Martin¹¹, Hugh Corr¹¹, Jeffrey P Severinghaus¹², Ross Beaudette¹², Jenna A Epifanio⁶, Edward J Brook⁶, Kaden Martin⁶, Jérôme Chappellaz⁵, Shuji Aoki¹³, Takakiyo Nakazawa¹³, Todd A Sowers¹⁴, Richard B Alley¹⁵, Jinho Ahn¹⁴, Michael Sigl¹⁶, Mirko Severi^{17

18}, Nelia W Dunbar¹⁹, Anders Svensson²⁰, John M Fegyveresi²¹, Chengfei He²², Zhengyu Liu²², Jiang Zhu²³, Bette L Otto-Bliesner²³, Vladimir Y Lipenkov²⁴, Masa Kageyama²⁵, Jakob Schwander¹⁶

Affiliations

¹ College of Earth Ocean and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA. christo.buizert@oregonstate.edu.
² Department of Earth and Space Science, University of Washington, Seattle, WA 98195, USA.
³ Geographical and Environmental Sciences, Northumbria University, Newcastle, UK.
⁴ Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa 277-8568, Japan.
⁵ Université Grenoble Alpes, CNRS, IRD, IGE, Grenoble, France.
⁶ College of Earth Ocean and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA.
⁷ National Institute of Polar Research, Tachikawa, Tokyo, Japan.
⁸ Department of Polar Science, The Graduate University of Advanced Studies (SOKENDAI), Tokyo, Japan.
⁹ Japan Agency for Marine Science and Technology (JAMSTEC), Yokosuka, Japan.
¹⁰ Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO 80309, USA.
¹¹ British Antarctic Survey, Cambridge, UK.
¹² Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093, USA.
¹³ Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
¹⁴ School of Earth and Environmental Sciences, Seoul National University, Seoul 08826, South Korea.
¹⁵ The Earth and Environmental Systems Institute, Pennsylvania State University, University Park, PA 16802, USA.
¹⁶ Climate and Environmental Physics, Physics Institute & Oeschger Center for Climate Change Research, University of Bern, 3012 Bern, Switzerland.
¹⁷ Department of Chemistry "Ugo Schiff," University of Florence, Florence, Italy.
¹⁸ Institute of Polar Sciences, ISP-CNR, Venice-Mestre, Italy.
¹⁹ New Mexico Bureau of Geology & Mineral Resources, Earth and Environmental Science Department, New Mexico Tech, Socorro, NM 87801, USA.
²⁰ Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark.
²¹ School of Earth and Sustainability, Northern Arizona University, Flagstaff, AZ 86011, USA.
²² Department of Geography, Ohio State University, Columbus, OH 43210, USA.
²³ National Center for Atmospheric Research, Boulder, CO 80307, USA.
²⁴ Climate and Environmental Research Laboratory, Arctic and Antarctic Research Institute, St. Petersburg 199397, Russia.
²⁵ Laboratoire des Sciences du Climat et de l'Environnement-IPSL, Université Paris-Saclay, Gif-sur-Yvette, France.

PMID: 34083489
DOI: 10.1126/science.abd2897

Free article

Antarctic surface temperature and elevation during the Last Glacial Maximum

Christo Buizert et al. Science. 2021.

Free article

. 2021 Jun 4;372(6546):1097-1101.

doi: 10.1126/science.abd2897.

Authors

Affiliations

¹ College of Earth Ocean and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA. christo.buizert@oregonstate.edu.
² Department of Earth and Space Science, University of Washington, Seattle, WA 98195, USA.
³ Geographical and Environmental Sciences, Northumbria University, Newcastle, UK.
⁴ Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa 277-8568, Japan.
⁵ Université Grenoble Alpes, CNRS, IRD, IGE, Grenoble, France.
⁶ College of Earth Ocean and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA.
⁷ National Institute of Polar Research, Tachikawa, Tokyo, Japan.
⁸ Department of Polar Science, The Graduate University of Advanced Studies (SOKENDAI), Tokyo, Japan.
⁹ Japan Agency for Marine Science and Technology (JAMSTEC), Yokosuka, Japan.
¹⁰ Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO 80309, USA.
¹¹ British Antarctic Survey, Cambridge, UK.
¹² Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093, USA.
¹³ Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
¹⁴ School of Earth and Environmental Sciences, Seoul National University, Seoul 08826, South Korea.
¹⁵ The Earth and Environmental Systems Institute, Pennsylvania State University, University Park, PA 16802, USA.
¹⁶ Climate and Environmental Physics, Physics Institute & Oeschger Center for Climate Change Research, University of Bern, 3012 Bern, Switzerland.
¹⁷ Department of Chemistry "Ugo Schiff," University of Florence, Florence, Italy.
¹⁸ Institute of Polar Sciences, ISP-CNR, Venice-Mestre, Italy.
¹⁹ New Mexico Bureau of Geology & Mineral Resources, Earth and Environmental Science Department, New Mexico Tech, Socorro, NM 87801, USA.
²⁰ Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark.
²¹ School of Earth and Sustainability, Northern Arizona University, Flagstaff, AZ 86011, USA.
²² Department of Geography, Ohio State University, Columbus, OH 43210, USA.
²³ National Center for Atmospheric Research, Boulder, CO 80307, USA.
²⁴ Climate and Environmental Research Laboratory, Arctic and Antarctic Research Institute, St. Petersburg 199397, Russia.
²⁵ Laboratoire des Sciences du Climat et de l'Environnement-IPSL, Université Paris-Saclay, Gif-sur-Yvette, France.

PMID: 34083489
DOI: 10.1126/science.abd2897

Abstract

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.

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Antarctic surface temperature and elevation during the Last Glacial Maximum

Affiliations

Antarctic surface temperature and elevation during the Last Glacial Maximum

Authors

Affiliations

Abstract

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LinkOut - more resources

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