Dynamic Greenland ice sheet driven by pCO2 variations across the Pliocene Pleistocene transition
International audience It is generally considered that the perennial glaciation of Greenland lasting several orbital cycles began around 2.7 Ma along with the intensification of Northern Hemisphere glaciation (NHG). Both data and model studies have demonstrated that a decline in atmospheric pCO2 was...
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ftunivnantes:oai:HAL:hal-01945992v1 2023-05-15T16:26:44+02:00 Dynamic Greenland ice sheet driven by pCO2 variations across the Pliocene Pleistocene transition Tan, Ning Ladant, Jean-Baptiste Ramstein, Gilles Dumas, Christophe Bachem, Paul Jansen, Eystein Chinese Academy of Sciences Beijing (CAS) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) 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) Modélisation du climat (CLIM) 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) 2018-11-12 https://hal.sorbonne-universite.fr/hal-01945992 https://hal.sorbonne-universite.fr/hal-01945992/document https://hal.sorbonne-universite.fr/hal-01945992/file/s41467-018-07206-w.pdf https://doi.org/10.1038/s41467-018-07206-w en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-018-07206-w hal-01945992 https://hal.sorbonne-universite.fr/hal-01945992 https://hal.sorbonne-universite.fr/hal-01945992/document https://hal.sorbonne-universite.fr/hal-01945992/file/s41467-018-07206-w.pdf doi:10.1038/s41467-018-07206-w http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.sorbonne-universite.fr/hal-01945992 Nature Communications, Nature Publishing Group, 2018, 9, pp.4755. ⟨10.1038/s41467-018-07206-w⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2018 ftunivnantes https://doi.org/10.1038/s41467-018-07206-w 2022-10-19T00:00:59Z International audience It is generally considered that the perennial glaciation of Greenland lasting several orbital cycles began around 2.7 Ma along with the intensification of Northern Hemisphere glaciation (NHG). Both data and model studies have demonstrated that a decline in atmospheric pCO2 was instrumental in establishing a perennial Greenland ice sheet (GrIS), yet models have generally used simplistic pCO2 constraints rather than data-inferred pCO2 evolution. Here, using a method designed for the long-term coupling of climate and cryosphere models and pCO2 scenarios from different studies, we highlight the pivotal role of pCO2 on the GrIS expansion across the Plio-Pleistocene Transition (PPT, 3.0–2.5 Ma), in particular in the range between 280 and 320 ppm. Good qualitative agreement is obtained between various IRD reconstructions and some of the possible evolutions of the GrIS simulated by our model. Our results underline the dynamism of the GrIS waxing and waning under pCO2 levels similar to or lower than today, which supports recent evidence of a dynamic GrIS during the Plio-Pleistocene. Article in Journal/Newspaper Greenland Ice Sheet Université de Nantes: HAL-UNIV-NANTES Greenland Nature Communications 9 1 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Tan, Ning Ladant, Jean-Baptiste Ramstein, Gilles Dumas, Christophe Bachem, Paul Jansen, Eystein Dynamic Greenland ice sheet driven by pCO2 variations across the Pliocene Pleistocene transition |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience It is generally considered that the perennial glaciation of Greenland lasting several orbital cycles began around 2.7 Ma along with the intensification of Northern Hemisphere glaciation (NHG). Both data and model studies have demonstrated that a decline in atmospheric pCO2 was instrumental in establishing a perennial Greenland ice sheet (GrIS), yet models have generally used simplistic pCO2 constraints rather than data-inferred pCO2 evolution. Here, using a method designed for the long-term coupling of climate and cryosphere models and pCO2 scenarios from different studies, we highlight the pivotal role of pCO2 on the GrIS expansion across the Plio-Pleistocene Transition (PPT, 3.0–2.5 Ma), in particular in the range between 280 and 320 ppm. Good qualitative agreement is obtained between various IRD reconstructions and some of the possible evolutions of the GrIS simulated by our model. Our results underline the dynamism of the GrIS waxing and waning under pCO2 levels similar to or lower than today, which supports recent evidence of a dynamic GrIS during the Plio-Pleistocene. |
author2 |
Chinese Academy of Sciences Beijing (CAS) Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) 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) Modélisation du climat (CLIM) 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) |
format |
Article in Journal/Newspaper |
author |
Tan, Ning Ladant, Jean-Baptiste Ramstein, Gilles Dumas, Christophe Bachem, Paul Jansen, Eystein |
author_facet |
Tan, Ning Ladant, Jean-Baptiste Ramstein, Gilles Dumas, Christophe Bachem, Paul Jansen, Eystein |
author_sort |
Tan, Ning |
title |
Dynamic Greenland ice sheet driven by pCO2 variations across the Pliocene Pleistocene transition |
title_short |
Dynamic Greenland ice sheet driven by pCO2 variations across the Pliocene Pleistocene transition |
title_full |
Dynamic Greenland ice sheet driven by pCO2 variations across the Pliocene Pleistocene transition |
title_fullStr |
Dynamic Greenland ice sheet driven by pCO2 variations across the Pliocene Pleistocene transition |
title_full_unstemmed |
Dynamic Greenland ice sheet driven by pCO2 variations across the Pliocene Pleistocene transition |
title_sort |
dynamic greenland ice sheet driven by pco2 variations across the pliocene pleistocene transition |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.sorbonne-universite.fr/hal-01945992 https://hal.sorbonne-universite.fr/hal-01945992/document https://hal.sorbonne-universite.fr/hal-01945992/file/s41467-018-07206-w.pdf https://doi.org/10.1038/s41467-018-07206-w |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.sorbonne-universite.fr/hal-01945992 Nature Communications, Nature Publishing Group, 2018, 9, pp.4755. ⟨10.1038/s41467-018-07206-w⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-018-07206-w hal-01945992 https://hal.sorbonne-universite.fr/hal-01945992 https://hal.sorbonne-universite.fr/hal-01945992/document https://hal.sorbonne-universite.fr/hal-01945992/file/s41467-018-07206-w.pdf doi:10.1038/s41467-018-07206-w |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41467-018-07206-w |
container_title |
Nature Communications |
container_volume |
9 |
container_issue |
1 |
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1766015701897707520 |