Assessing late Pliocene climate variability over glacial-interglacial timescales (PlioVAR)
International audience The Pliocene epoch (~2.6-5.3 million years ago) is one of the best resolved examples of a climate state in long-term equilibrium with current or predicted near-future atmospheric CO2 concentrations, characterised by a globally warmer climate, reduced continental ice volume, an...
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ftccsdartic:oai:HAL:hal-03811883v1 2023-12-17T10:31:48+01:00 Assessing late Pliocene climate variability over glacial-interglacial timescales (PlioVAR) Mcclymont, Erin Ho, Sze Ling Ford, Heather White, Sarah Groenveld, Jeroen Bolton, Clara Thirumalai, Kau Grant, Georgia Patterson, Molly Alonso-Garcia, Montserrat Hoogakker, Babette Department of Geography, Durham University Durham University Institute of Oceanography Taipei National Taiwan University Taiwan (NTU) SCHOOL OF GEOGRAPHY QUEEN MARY UNIVERSITY OF LONDON GBR Partenaires IRSTEA Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) Department of Earth and Planetary Sciences Santa Cruz University of California Santa Cruz (UC Santa Cruz) University of California (UC)-University of California (UC) Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Department of Geosciences University of Arizona University of Arizona GNS Science Lower Hutt GNS Science Department of Geological Sciences and Environmental Studies Binghamton Binghamton University SUNY State University of New York (SUNY)-State University of New York (SUNY) Leeds, United Kingdom 2022-08-23 https://hal.science/hal-03811883 https://hal.science/hal-03811883/document https://doi.org/10.5194/egusphere-gc10-pliocene-52 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-gc10-pliocene-52 hal-03811883 https://hal.science/hal-03811883 https://hal.science/hal-03811883/document doi:10.5194/egusphere-gc10-pliocene-52 European Geophysical Union Galileo Conference https://hal.science/hal-03811883 European Geophysical Union Galileo Conference, Aug 2022, Leeds, United Kingdom. ⟨10.5194/egusphere-gc10-pliocene-52⟩ [SDE]Environmental Sciences info:eu-repo/semantics/conferenceObject Conference papers 2022 ftccsdartic https://doi.org/10.5194/egusphere-gc10-pliocene-52 2023-11-19T00:02:52Z International audience The Pliocene epoch (~2.6-5.3 million years ago) is one of the best resolved examples of a climate state in long-term equilibrium with current or predicted near-future atmospheric CO2 concentrations, characterised by a globally warmer climate, reduced continental ice volume, and reduced ocean/atmosphere circulation intensity compared to today. Towards the end of the Pliocene, there was a marked increase in glaciation in the northern hemisphere and atmospheric CO2 concentrations declined.The Past Global Changes (PAGES) PlioVAR working group aimed to co-ordinate a synthesis of terrestrial and marine data to characterise spatial and temporal variability of Pliocene climate, underpinned by high quality data sets supported by robust stratigraphies. Here we present some of the main findings of this synthesis effort, including new assessments of ocean temperatures during the KM5c interglacial, and recent work assessing orbital-scale climate variability across the late Pliocene-early Pleistocene northern hemisphere ice-sheet growth. We outline our approaches to integrating multi-proxy data recording ocean temperatures, d18O and sea-level variability from a globally distributed suite of marine sediment cores. We explore regional expressions of environmental change across this transition, identifying asynchronous trends and patterns in climate changes. We consider how these results might inform our understanding of past climate forcings and feedbacks during both warm intervals of the past and the development of larger ice sheets in the northern hemisphere. Conference Object Ice Sheet Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
[SDE]Environmental Sciences |
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[SDE]Environmental Sciences Mcclymont, Erin Ho, Sze Ling Ford, Heather White, Sarah Groenveld, Jeroen Bolton, Clara Thirumalai, Kau Grant, Georgia Patterson, Molly Alonso-Garcia, Montserrat Hoogakker, Babette Assessing late Pliocene climate variability over glacial-interglacial timescales (PlioVAR) |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience The Pliocene epoch (~2.6-5.3 million years ago) is one of the best resolved examples of a climate state in long-term equilibrium with current or predicted near-future atmospheric CO2 concentrations, characterised by a globally warmer climate, reduced continental ice volume, and reduced ocean/atmosphere circulation intensity compared to today. Towards the end of the Pliocene, there was a marked increase in glaciation in the northern hemisphere and atmospheric CO2 concentrations declined.The Past Global Changes (PAGES) PlioVAR working group aimed to co-ordinate a synthesis of terrestrial and marine data to characterise spatial and temporal variability of Pliocene climate, underpinned by high quality data sets supported by robust stratigraphies. Here we present some of the main findings of this synthesis effort, including new assessments of ocean temperatures during the KM5c interglacial, and recent work assessing orbital-scale climate variability across the late Pliocene-early Pleistocene northern hemisphere ice-sheet growth. We outline our approaches to integrating multi-proxy data recording ocean temperatures, d18O and sea-level variability from a globally distributed suite of marine sediment cores. We explore regional expressions of environmental change across this transition, identifying asynchronous trends and patterns in climate changes. We consider how these results might inform our understanding of past climate forcings and feedbacks during both warm intervals of the past and the development of larger ice sheets in the northern hemisphere. |
author2 |
Department of Geography, Durham University Durham University Institute of Oceanography Taipei National Taiwan University Taiwan (NTU) SCHOOL OF GEOGRAPHY QUEEN MARY UNIVERSITY OF LONDON GBR Partenaires IRSTEA Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) Department of Earth and Planetary Sciences Santa Cruz University of California Santa Cruz (UC Santa Cruz) University of California (UC)-University of California (UC) Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Department of Geosciences University of Arizona University of Arizona GNS Science Lower Hutt GNS Science Department of Geological Sciences and Environmental Studies Binghamton Binghamton University SUNY State University of New York (SUNY)-State University of New York (SUNY) |
format |
Conference Object |
author |
Mcclymont, Erin Ho, Sze Ling Ford, Heather White, Sarah Groenveld, Jeroen Bolton, Clara Thirumalai, Kau Grant, Georgia Patterson, Molly Alonso-Garcia, Montserrat Hoogakker, Babette |
author_facet |
Mcclymont, Erin Ho, Sze Ling Ford, Heather White, Sarah Groenveld, Jeroen Bolton, Clara Thirumalai, Kau Grant, Georgia Patterson, Molly Alonso-Garcia, Montserrat Hoogakker, Babette |
author_sort |
Mcclymont, Erin |
title |
Assessing late Pliocene climate variability over glacial-interglacial timescales (PlioVAR) |
title_short |
Assessing late Pliocene climate variability over glacial-interglacial timescales (PlioVAR) |
title_full |
Assessing late Pliocene climate variability over glacial-interglacial timescales (PlioVAR) |
title_fullStr |
Assessing late Pliocene climate variability over glacial-interglacial timescales (PlioVAR) |
title_full_unstemmed |
Assessing late Pliocene climate variability over glacial-interglacial timescales (PlioVAR) |
title_sort |
assessing late pliocene climate variability over glacial-interglacial timescales (pliovar) |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03811883 https://hal.science/hal-03811883/document https://doi.org/10.5194/egusphere-gc10-pliocene-52 |
op_coverage |
Leeds, United Kingdom |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
European Geophysical Union Galileo Conference https://hal.science/hal-03811883 European Geophysical Union Galileo Conference, Aug 2022, Leeds, United Kingdom. ⟨10.5194/egusphere-gc10-pliocene-52⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-gc10-pliocene-52 hal-03811883 https://hal.science/hal-03811883 https://hal.science/hal-03811883/document doi:10.5194/egusphere-gc10-pliocene-52 |
op_doi |
https://doi.org/10.5194/egusphere-gc10-pliocene-52 |
_version_ |
1785585198480490496 |