Using results from the PlioMIP ensemble to investigate the Greenland Ice Sheet during the mid-Pliocene Warm Period
International audience During an interval of the Late Pliocene, referred to here as the mid-Pliocene Warm Period (mPWP; 3.264 to 3.025 million years ago), global mean temperature was similar to that predicted for the end of this century, and atmospheric carbon dioxide concentrations were higher than...
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ftuniversailles:oai:HAL:hal-04110412v1 2023-06-18T03:40:50+02:00 Using results from the PlioMIP ensemble to investigate the Greenland Ice Sheet during the mid-Pliocene Warm Period Dolan, A. M. Hunter, S. J. Hill, D. J. Haywood, A. M. Koenig, S. J. Otto-Bliesner, B. L. Abe-Ouchi, A. Bragg, F. Chan, W. -L. Chandler, M. A. Contoux, C. Jost, A. Kamae, Y. Lohmann, G. Lunt, D. J. Ramstein, G. Rosenbloom, N. A. Sohl, L. Stepanek, C. Ueda, H. Yan, Q. Zhang, Z. Milieux Environnementaux, Transferts et Interactions dans les hydrosystèmes et les Sols (METIS) Université Pierre et Marie Curie - Paris 6 (UPMC)-École Pratique des Hautes Études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) 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) 2015 https://hal.science/hal-04110412 https://doi.org/10.5194/cp-11-403-201510.5194/cpd-10-3483-2014 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-11-403-201510.5194/cpd-10-3483-2014 hal-04110412 https://hal.science/hal-04110412 BIBCODE: 2015CliPa.11.403D doi:10.5194/cp-11-403-201510.5194/cpd-10-3483-2014 Climate of the Past https://hal.science/hal-04110412 Climate of the Past, 2015, 11, pp.403-424. ⟨10.5194/cp-11-403-201510.5194/cpd-10-3483-2014⟩ Earth Science [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2015 ftuniversailles https://doi.org/10.5194/cp-11-403-201510.5194/cpd-10-3483-2014 2023-06-06T22:41:37Z International audience During an interval of the Late Pliocene, referred to here as the mid-Pliocene Warm Period (mPWP; 3.264 to 3.025 million years ago), global mean temperature was similar to that predicted for the end of this century, and atmospheric carbon dioxide concentrations were higher than pre-industrial levels. Sea level was also higher than today, implying a significant reduction in the extent of the ice sheets. Thus, the mPWP provides a natural laboratory in which to investigate the long-term response of the Earth's ice sheets and sea level in a warmer-than-present-day world. At present, our understanding of the Greenland ice sheet during the mPWP is generally based upon predictions using single climate and ice sheet models. Therefore, it is essential that the model dependency of these results is assessed. The Pliocene Model Intercomparison Project (PlioMIP) has brought together nine international modelling groups to simulate the warm climate of the Pliocene. Here we use the climatological fields derived from the results of the 15 PlioMIP climate models to force an offline ice sheet model. We show that mPWP ice sheet reconstructions are highly dependent upon the forcing climatology used, with Greenland reconstructions ranging from an ice-free state to a near-modern ice sheet. An analysis of the surface albedo variability between the climate models over Greenland offers insights into the drivers of inter-model differences. As we demonstrate that the climate model dependency of our results is high, we highlight the necessity of data-based constraints of ice extent in developing our understanding of the mPWP Greenland ice sheet. Article in Journal/Newspaper Greenland Ice Sheet Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Greenland |
institution |
Open Polar |
collection |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
ftuniversailles |
language |
English |
topic |
Earth Science [SDU]Sciences of the Universe [physics] |
spellingShingle |
Earth Science [SDU]Sciences of the Universe [physics] Dolan, A. M. Hunter, S. J. Hill, D. J. Haywood, A. M. Koenig, S. J. Otto-Bliesner, B. L. Abe-Ouchi, A. Bragg, F. Chan, W. -L. Chandler, M. A. Contoux, C. Jost, A. Kamae, Y. Lohmann, G. Lunt, D. J. Ramstein, G. Rosenbloom, N. A. Sohl, L. Stepanek, C. Ueda, H. Yan, Q. Zhang, Z. Using results from the PlioMIP ensemble to investigate the Greenland Ice Sheet during the mid-Pliocene Warm Period |
topic_facet |
Earth Science [SDU]Sciences of the Universe [physics] |
description |
International audience During an interval of the Late Pliocene, referred to here as the mid-Pliocene Warm Period (mPWP; 3.264 to 3.025 million years ago), global mean temperature was similar to that predicted for the end of this century, and atmospheric carbon dioxide concentrations were higher than pre-industrial levels. Sea level was also higher than today, implying a significant reduction in the extent of the ice sheets. Thus, the mPWP provides a natural laboratory in which to investigate the long-term response of the Earth's ice sheets and sea level in a warmer-than-present-day world. At present, our understanding of the Greenland ice sheet during the mPWP is generally based upon predictions using single climate and ice sheet models. Therefore, it is essential that the model dependency of these results is assessed. The Pliocene Model Intercomparison Project (PlioMIP) has brought together nine international modelling groups to simulate the warm climate of the Pliocene. Here we use the climatological fields derived from the results of the 15 PlioMIP climate models to force an offline ice sheet model. We show that mPWP ice sheet reconstructions are highly dependent upon the forcing climatology used, with Greenland reconstructions ranging from an ice-free state to a near-modern ice sheet. An analysis of the surface albedo variability between the climate models over Greenland offers insights into the drivers of inter-model differences. As we demonstrate that the climate model dependency of our results is high, we highlight the necessity of data-based constraints of ice extent in developing our understanding of the mPWP Greenland ice sheet. |
author2 |
Milieux Environnementaux, Transferts et Interactions dans les hydrosystèmes et les Sols (METIS) Université Pierre et Marie Curie - Paris 6 (UPMC)-École Pratique des Hautes Études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) 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) |
format |
Article in Journal/Newspaper |
author |
Dolan, A. M. Hunter, S. J. Hill, D. J. Haywood, A. M. Koenig, S. J. Otto-Bliesner, B. L. Abe-Ouchi, A. Bragg, F. Chan, W. -L. Chandler, M. A. Contoux, C. Jost, A. Kamae, Y. Lohmann, G. Lunt, D. J. Ramstein, G. Rosenbloom, N. A. Sohl, L. Stepanek, C. Ueda, H. Yan, Q. Zhang, Z. |
author_facet |
Dolan, A. M. Hunter, S. J. Hill, D. J. Haywood, A. M. Koenig, S. J. Otto-Bliesner, B. L. Abe-Ouchi, A. Bragg, F. Chan, W. -L. Chandler, M. A. Contoux, C. Jost, A. Kamae, Y. Lohmann, G. Lunt, D. J. Ramstein, G. Rosenbloom, N. A. Sohl, L. Stepanek, C. Ueda, H. Yan, Q. Zhang, Z. |
author_sort |
Dolan, A. M. |
title |
Using results from the PlioMIP ensemble to investigate the Greenland Ice Sheet during the mid-Pliocene Warm Period |
title_short |
Using results from the PlioMIP ensemble to investigate the Greenland Ice Sheet during the mid-Pliocene Warm Period |
title_full |
Using results from the PlioMIP ensemble to investigate the Greenland Ice Sheet during the mid-Pliocene Warm Period |
title_fullStr |
Using results from the PlioMIP ensemble to investigate the Greenland Ice Sheet during the mid-Pliocene Warm Period |
title_full_unstemmed |
Using results from the PlioMIP ensemble to investigate the Greenland Ice Sheet during the mid-Pliocene Warm Period |
title_sort |
using results from the pliomip ensemble to investigate the greenland ice sheet during the mid-pliocene warm period |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.science/hal-04110412 https://doi.org/10.5194/cp-11-403-201510.5194/cpd-10-3483-2014 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Climate of the Past https://hal.science/hal-04110412 Climate of the Past, 2015, 11, pp.403-424. ⟨10.5194/cp-11-403-201510.5194/cpd-10-3483-2014⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-11-403-201510.5194/cpd-10-3483-2014 hal-04110412 https://hal.science/hal-04110412 BIBCODE: 2015CliPa.11.403D doi:10.5194/cp-11-403-201510.5194/cpd-10-3483-2014 |
op_doi |
https://doi.org/10.5194/cp-11-403-201510.5194/cpd-10-3483-2014 |
_version_ |
1769006181720784896 |