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Climate of the Past An interactive open-access journal of the European Geosciences Union
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Volume 10, issue 1
Clim. Past, 10, 167–180, 2014
https://doi.org/10.5194/cp-10-167-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Clim. Past, 10, 167–180, 2014
https://doi.org/10.5194/cp-10-167-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 23 Jan 2014

Research article | 23 Jan 2014

Late Pliocene lakes and soils: a global data set for the analysis of climate feedbacks in a warmer world

M. J. Pound1, J. Tindall2, S. J. Pickering2, A. M. Haywood2, H. J. Dowsett3, and U. Salzmann1 M. J. Pound et al.
  • 1Department of Geography, Faculty of Engineering and Environment, Northumbria University, Ellison Building, Newcastle upon Tyne, UK
  • 2School of Earth and Environment, University of Leeds, Woodhouse Lane, Leeds, UK
  • 3Eastern Geology and Paleoclimate Science Center, US Geological Survey, Reston, Virginia 20192, USA

Abstract. The global distribution of late Pliocene soils and lakes has been reconstructed using a synthesis of geological data. These reconstructions are then used as boundary conditions for the Hadley Centre General Circulation Model (HadCM3) and the BIOME4 mechanistic vegetation model. By combining our novel soil and lake reconstructions with a fully coupled climate model we are able to explore the feedbacks of soils and lakes on the climate of the late Pliocene. Our experiments reveal regionally confined changes of local climate and vegetation in response to the new boundary conditions. The addition of late Pliocene soils has the largest influence on surface air temperatures, with notable increases in Australia, the southern part of northern Africa and in Asia. The inclusion of late Pliocene lakes increases precipitation in central Africa and at the locations of lakes in the Northern Hemisphere. When combined, the feedbacks on climate from late Pliocene lakes and soils improve the data to model fit in western North America and the southern part of northern Africa.

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