Articles | Volume 12, issue 2
https://doi.org/10.5194/cp-12-455-2016
https://doi.org/10.5194/cp-12-455-2016
Research article
 | 
25 Feb 2016
Research article |  | 25 Feb 2016

A model–model and data–model comparison for the early Eocene hydrological cycle

Matthew J. Carmichael, Daniel J. Lunt, Matthew Huber, Malte Heinemann, Jeffrey Kiehl, Allegra LeGrande, Claire A. Loptson, Chris D. Roberts, Navjit Sagoo, Christine Shields, Paul J. Valdes, Arne Winguth, Cornelia Winguth, and Richard D. Pancost

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Cited articles

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Allen, M. R. and Ingram, W. J.: Constraints on future changes in climate and the hydrologic cycle, Nature, 419, 224–232, https://doi.org/10.1038/nature01092, 2002.
Beerling, D. J., Fox, A., Stevenson, D. S., and Valdes, P. J.: Enhanced chemistry climate feedbacks in past greenhouse worlds, P. Natl. Acad. Sci. USA, 108, 9770–9775, https://doi.org/10.1073/pnas.1102409108, 2011.
Bice, K. L. and Marotzke, J.: Numerical evidence against reversed thermohaline circulation in the warm Paleocene/Eocene ocean, J. Geophys. Res.-Oceans, 106, 11529–11542, https://doi.org/10.1029/2000jc000561, 2001.
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In this paper, we assess how well model-simulated precipitation rates compare to those indicated by geological data for the early Eocene, a warm interval 56–49 million years ago. Our results show that a number of models struggle to produce sufficient precipitation at high latitudes, which likely relates to cool simulated temperatures in these regions. However, calculating precipitation rates from plant fossils is highly uncertain, and further data are now required.