PP31E:
Reconstructing and Modeling Late Pliocene Climate Variability I

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Session ID#: 17792

Session Description:
The Pliocene epoch (~2.6-5.3 million years ago) is arguably the best-resolved example of a climate state in long-term equilibrium with current or predicted near-future atmospheric CO2 concentrations. It was characterized by a warmer climate globally, reduced continental ice volume, and reduced ocean/atmosphere circulation intensity. Pleistocene paleoclimate studies have demonstrated the value of understanding climate variability on orbital timescales, whereby the unique spatial and temporal signatures of individual interglacials or glacial-interglacial cycles highlight sensitive regions or climate systems. Recent modeling work confirms that such variability (and regional non-synchronicity) should also be expected in the Pliocene.

As part of the PAGES PlioVAR working group, this session welcomes submissions which reconstruct and/or model mid and late Pliocene climates and environmental responses. Contributions investigating marine and terrestrial environmental change, ice-sheet behaviour, biotic responses and/or biogeochemical cycling are encouraged, so as to better understand climate forcings and feedbacks through both data analysis and data-model integration.

Primary Convener:  Erin McClymont, University of Durham, Durham, United Kingdom
Conveners:  Natalie Burls, George Mason University, Atmospheric, Oceanic and Earth Sciences, Fairfax, VA, United States and Heather L Ford, University of Cambridge, Earth Sciences, Cambridge, United Kingdom
Chairs:  Erin McClymont, University of Durham, Durham, United Kingdom, Heather L Ford, University of Cambridge, Earth Sciences, Cambridge, United Kingdom and Natalie Burls, George Mason University, Atmospheric, Oceanic and Earth Sciences, Fairfax, VA, United States
OSPA Liaison:  Heather L Ford, University of Cambridge, Earth Sciences, Cambridge, United Kingdom
Index Terms:

4912 Biogeochemical cycles, processes, and modeling [PALEOCEANOGRAPHY]
4928 Global climate models [PALEOCEANOGRAPHY]
4936 Interglacial [PALEOCEANOGRAPHY]
4950 Paleoecology [PALEOCEANOGRAPHY]

Abstracts Submitted to this Session:

A Ground-Level View of African Climate During the Pliocene (Invited) (125079)
Naomi E. Levin, University of Michigan, Earth and Environmental Sciences, Ann Arbor, United States
Modelling Regional Climate and Terrestrial Environmental Change during Interglacial Events of the Late Pliocene (133589)
Caroline Prescott1, Aisling M Dolan1, Alan M Haywood2, Stephen J Hunter1 and Julia Claire Tindall3, (1)University of Leeds, Leeds, LS2, United Kingdom, (2)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (3)University of Leeds, Leeds, United Kingdom
The Emergence of the Pacific Meridional Overturning Circulation (PMOC) Paced by Obliquity Cycles during the Pliocene (153330)
Alexey V Fedorov, Yale University, New Haven, CT, United States, Natalie Burls, George Mason University, Atmospheric, Oceanic and Earth Sciences, Fairfax, VA, United States, Daniel Mikhail Sigman, Princeton University, Geosciences, Princeton, United States, Sam Jaccard, University of Bern, Institute of Geological Sciences and Oeschger Centre for Climate Change Research, Bern, Switzerland, Ralf Tiedemann, Alfred-Wegener-Institute, Bremerhaven, Germany and Gerald Hermann Haug, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
Providing favorable conditions to simulate the mid to late Pliocene glaciations (3.3-2.5 Ma) (172605)
Ning Tan, Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences,, Beijing, China, Gilles Ramstein, Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, Paris, France, Christophe Dumas, LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France, Jean-Baptiste Ladant, University of Michigan, Earth and Environmental Sciences, Ann Arbor, MI, United States and Camille Contoux, CEREGE, Aix-en-Provence Cedex, France
Modeling Evidence for the Strengthening of Vegetation-Snow-Albedo Feedback from the Mid-Pliocene to the Pre-Industrial (192552)
Pablo Paiewonsky, State University of New York at Albany, Department of Atmospheric and Environmental Sciences, Albany, NY, United States and Oliver Timm, University at Albany State University of New York, Department of Atmospheric and Environmental Sciences, Albany, United States
Plio-Pleistocene Sea Surface Temperature Variability As Measured by Different Proxies – A Cautionary Tale (Invited) (145669)
Kira T Lawrence1, Stella C Woodard2, Isla S. Castañeda3, Peter B deMenocal4, Laura Peterson5, Yair Rosenthal2, Laura Bochner6, Devon B. Gorbey6 and Haley Mauriello6, (1)Lafayette College, Easton, United States, (2)Rutgers University New Brunswick, New Brunswick, United States, (3)University of Massachusetts Amherst, Department of Earth, Geographic, and Climate Sciences, Amherst, MA, United States, (4)Lamont-Doherty Earth Observatory, Palisades, United States, (5)Luther College, Environmental Studies, Decorah, IA, United States, (6)Lafayette College, Geology and Environmental Geosciences Department, Easton, PA, United States
The transient and asynchronous response of ice volume to orbital-driven climate changes of the Late Pliocene (137977)
Bas de Boer1,2, Stephen J Hunter3, Aisling M Dolan3 and Alan M Haywood2, (1)Utrecht University, Utrecht, Netherlands, (2)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (3)University of Leeds, School of Earth and Environment, Leeds, LS2, United Kingdom

See more of: Paleoceanography and Paleoclimatology