DeepMIP: experimental design for model simulations of the EECO, PETM, and pre-PETM

Daniel Lunt, Matthew Huber, Michiel Baatsen, Rodrigo Caballero, Rob DeConto, Yannick Donnadieu, David Evans, Ran Feng, Gavin Foster, Ed Gasson, Anna von der Heydt, Chris Hollis, Sandy Kirtland Turner, Robert Korty, Reinhardt Kozdon, Srinath Krishnan, Jean-Baptiste Ladant, Petra Langebroek, Caroline Lear, Allegra LeGrandeKate Littler, Paul Markwick, Bette Otto-Bliesner, Paul Pearson, Chris Poulsen, Ulrich Salzmann, Christine Shields, Kathryn Snell, Michael Starz, James Super, Clay Tabour, Jess Tierney, Gregory Tourte, Gary Upchurch, Bridget Wade, Scott Wing, Arne Winguth, Nicky Wright, James Zachos, Richard Zeebe

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Past warm periods provide an opportunity to evaluate climate models under extreme forcing scenarios, in particular high (> 800 ppmv) atmospheric CO2 concentrations. Although a post-hoc intercomparison of Eocene (~50 million years ago, Ma) climate model simulations and geological data has been carried out previously, models of past high-CO2 periods have never been evaluated in a consistent framework. Here, we present an experimental design for climate model simulations of three warm periods within the latest Paleocene and the early Eocene. Together these form the first phase of DeepMIP – the deeptime model intercomparison project, itself a group within the wider Paleoclimate Modelling Intercomparison Project (PMIP). The experimental design consists of three core paleo simulations and a set of optional sensitivity studies. The experimental design specifies and provides guidance on boundary conditions associated with palaeogeography, greenhouse gases, orbital configuration, solar constant, land surface parameters, and aerosols. Initial conditions, simulation length, and output variables are also specified. Finally, we explain how the geological datasets, which will be used to evaluate the simulations, will be developed.
Original languageEnglish
JournalGeoscientific Model Development Discussions
Early online date21 Jun 2016
Publication statusE-pub ahead of print - 21 Jun 2016


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