Articles | Volume 19, issue 11
https://doi.org/10.5194/cp-19-2257-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/cp-19-2257-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 Nov 2023
Research article |
| 10 Nov 2023
| 10 Nov 2023
The Antarctic Ice Core Chronology 2023 (AICC2023) chronological framework and associated timescale for the European Project for Ice Coring in Antarctica (EPICA) Dome C ice core
Laboratory for Sciences of Climate and Environment, LSCE-IPSL, CEA-CNRS-UVSQ, University of Paris-Saclay, 91190 Gif-sur-Yvette, France
Amaëlle Landais
Laboratory for Sciences of Climate and Environment, LSCE-IPSL, CEA-CNRS-UVSQ, University of Paris-Saclay, 91190 Gif-sur-Yvette, France
Antoine Grisart
Laboratory for Sciences of Climate and Environment, LSCE-IPSL, CEA-CNRS-UVSQ, University of Paris-Saclay, 91190 Gif-sur-Yvette, France
Frédéric Parrenin
Institute of Environmental Geosciences, CNRS, INRAE, IRD, Grenoble INP, University of Grenoble Alpes, 38000 Grenoble, France
Frédéric Prié
Laboratory for Sciences of Climate and Environment, LSCE-IPSL, CEA-CNRS-UVSQ, University of Paris-Saclay, 91190 Gif-sur-Yvette, France
Roxanne Jacob
Laboratory for Sciences of Climate and Environment, LSCE-IPSL, CEA-CNRS-UVSQ, University of Paris-Saclay, 91190 Gif-sur-Yvette, France
Elise Fourré
Laboratory for Sciences of Climate and Environment, LSCE-IPSL, CEA-CNRS-UVSQ, University of Paris-Saclay, 91190 Gif-sur-Yvette, France
Emilie Capron
Institute of Environmental Geosciences, CNRS, INRAE, IRD, Grenoble INP, University of Grenoble Alpes, 38000 Grenoble, France
Dominique Raynaud
Institute of Environmental Geosciences, CNRS, INRAE, IRD, Grenoble INP, University of Grenoble Alpes, 38000 Grenoble, France
Vladimir Ya Lipenkov
Arctic and Antarctic Research Institute, 199397 St. Petersburg, Russia
Marie-France Loutre
PAGES International Project Office, University of Bern, 3012 Bern, Switzerland
Georges Lemaître Centre for Earth and Climate Research (TECLIM), Earth and Life Institute, Catholic University of Louvain (UCL), 1348 Louvain-la-Neuve, Belgium
Thomas Extier
EPOC, UMR 5805, CNRS, University of Bordeaux, 33600 Pessac, France
Anders Svensson
Physics of Ice, Climate, and Earth, Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark
Etienne Legrain
Institute of Environmental Geosciences, CNRS, INRAE, IRD, Grenoble INP, University of Grenoble Alpes, 38000 Grenoble, France
Patricia Martinerie
Institute of Environmental Geosciences, CNRS, INRAE, IRD, Grenoble INP, University of Grenoble Alpes, 38000 Grenoble, France
Markus Leuenberger
Climate and Environmental Physics, Physics Institute, and Oeschger Centre for Climate Change Research, University of Bern, 3012 Bern, Switzerland
Wei Jiang
Department of Engineering and Applied Physics, Hefei National Laboratory, University of Science and Technology of China, Hefei, 230026, China
Florian Ritterbusch
Department of Engineering and Applied Physics, Hefei National Laboratory, University of Science and Technology of China, Hefei, 230026, China
Zheng-Tian Lu
Department of Engineering and Applied Physics, Hefei National Laboratory, University of Science and Technology of China, Hefei, 230026, China
Guo-Min Yang
Department of Engineering and Applied Physics, Hefei National Laboratory, University of Science and Technology of China, Hefei, 230026, China
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Saved (final revised paper)
Latest update: 08 Jul 2026
Short summary
A new federative chronology for five deep polar ice cores retrieves 800 000 years of past climate variations with improved accuracy. Precise ice core timescales are key to studying the mechanisms linking changes in the Earth’s orbit to the diverse climatic responses (temperature and atmospheric greenhouse gas concentrations). To construct the chronology, new measurements from the oldest continuous ice core as well as glaciological modeling estimates were combined in a statistical model.
A new federative chronology for five deep polar ice cores retrieves 800 000 years of past...
