Articles | Volume 16, issue 5
https://doi.org/10.5194/cp-16-1953-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-16-1953-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Global mean surface temperature and climate sensitivity of the early Eocene Climatic Optimum (EECO), Paleocene–Eocene Thermal Maximum (PETM), and latest Paleocene
Gordon N. Inglis
CORRESPONDING AUTHOR
School of Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Southampton, UK
Organic Geochemistry Unit, School of Chemistry, School of Earth Sciences, Cabot Institute for the Environment, University of Bristol, Bristol, UK
Fran Bragg
School of Geographical Sciences, University of Bristol, Bristol, UK
Natalie J. Burls
Department of Atmospheric, Oceanic and Earth Sciences, George Mason
University, Fairfax, USA
Margot J. Cramwinckel
Department of Earth Sciences, Utrecht University, Utrecht, the Netherlands
currently at: School of Ocean and Earth Science, National
Oceanography Centre Southampton, University of Southampton, Southampton, UK
David Evans
Institute of Geosciences, Goethe University Frankfurt, Frankfurt am Main, Germany
Gavin L. Foster
School of Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Southampton, UK
Matthew Huber
Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, USA
Daniel J. Lunt
School of Geographical Sciences, University of Bristol, Bristol, UK
Nicholas Siler
College of Earth, Ocean and Atmospheric Sciences, Oregon State University, Corvallis, USA
Sebastian Steinig
School of Geographical Sciences, University of Bristol, Bristol, UK
Jessica E. Tierney
Department of Geosciences, The University of Arizona, 1040 E 4th St., Tucson, USA
Richard Wilkinson
School of Mathematics and Statistics, University of Sheffield, Sheffield, UK
currently at: School of Mathematical Sciences, University of Nottingham, Nottingham, UK
Eleni Anagnostou
GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Agatha M. de Boer
Department of Geological Sciences and Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden
Tom Dunkley Jones
School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, UK
Kirsty M. Edgar
School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, UK
Christopher J. Hollis
GNS Science, Lower Hutt, New Zealand
David K. Hutchinson
Department of Geological Sciences and Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden
Richard D. Pancost
Organic Geochemistry Unit, School of Chemistry, School of Earth Sciences, Cabot Institute for the Environment, University of Bristol, Bristol, UK
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Discussed (final revised paper)
Discussed (preprint)
Latest update: 20 Sep 2023
Short summary
This paper presents estimates of global mean surface temperatures and climate sensitivity during the early Paleogene (∼57–48 Ma). We employ a multi-method experimental approach and show that i) global mean surface temperatures range between 27 and 32°C and that ii) estimates of
bulkequilibrium climate sensitivity (∼3 to 4.5°C) fall within the range predicted by the IPCC AR5 Report. This work improves our understanding of two key climate metrics during the early Paleogene.
This paper presents estimates of global mean surface temperatures and climate sensitivity during...