The DeepMIP contribution to PMIP4: Experimental design for model simulations of the EECO, PETM, and pre-PETM (version 1.0)

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 (similar to 50 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 early Eocene and the latest Paleocene (the EECO, PETM, and pre-PETM). Together with the CMIP6 pre-industrial control and abrupt 4 x CO2 simulations, and additional sensitivity studies, these form the first phase of DeepMIP - the Deep-time Model Intercomparison Project, itself a group within the wider Paleo-climate Modelling Intercomparison Project (PMIP). The experimental design specifies and provides guidance on boundary conditions associated with palaeogeography, greenhouse gases, astronomical configuration, solar constant, land surface processes, and aerosols. Initial conditions, simulation length, and output variables are also specified. Finally, we explain how the geological data sets, which will be used to evaluate the simulations, will be developed.

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Copyright Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License
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Author Lunt, Daniel J.
Huber, Matthew
Anagnostou, Eleni
Baatsen, Michiel L. J.
Caballero, Rodrigo
DeConto, Rob
Dijkstra, Henk A.
Donnadieu, Yannick
Evans, David
Feng, Ran
Foster, Gavin L.
Gasson, Ed
von der Heydt, Anna S.
Hollis, Chris J.
Inglis, Gordon N.
Jones, Stephen M.
Kiehl, Jeff
Kirtland Turner, Sandy
Korty, Robert L.
Kozdon, Reinhardt
Krishnan, Srinath
Ladant, Jean-Baptiste
Langebroek, Petra
Lear, Caroline H.
LeGrande, Allegra N.
Littler, Kate
Markwick, Paul
Otto-Bliesner, Bette
Pearson, Paul
Poulsen, Christopher J.
Salzmann, Ulrich
Shields, Christine
Snell, Kathryn
Stärz, Michael
Super, James
Tabor, Clay
Tierney, Jessica E.
Tourte, Gregory J. L.
Tripati, Aradhna
Upchurch, Garland R.
Wade, Bridget S.
Wing, Scott L.
Winguth, Arne M. E.
Wright, Nicky M.
Zachos, James C.
Zeebe, Richard E.
Publisher UCAR/NCAR - Library
Publication Date 2017-02-23T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Topic Category geoscientificInformation
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Metadata Date 2023-08-18T19:11:03.916956
Metadata Record Identifier edu.ucar.opensky::articles:19528
Metadata Language eng; USA
Suggested Citation Lunt, Daniel J., Huber, Matthew, Anagnostou, Eleni, Baatsen, Michiel L. J., Caballero, Rodrigo, DeConto, Rob, Dijkstra, Henk A., Donnadieu, Yannick, Evans, David, Feng, Ran, Foster, Gavin L., Gasson, Ed, von der Heydt, Anna S., Hollis, Chris J., Inglis, Gordon N., Jones, Stephen M., Kiehl, Jeff, Kirtland Turner, Sandy, Korty, Robert L., Kozdon, Reinhardt, Krishnan, Srinath, Ladant, Jean-Baptiste, Langebroek, Petra, Lear, Caroline H., LeGrande, Allegra N., Littler, Kate, Markwick, Paul, Otto-Bliesner, Bette, Pearson, Paul, Poulsen, Christopher J., Salzmann, Ulrich, Shields, Christine, Snell, Kathryn, Stärz, Michael, Super, James, Tabor, Clay, Tierney, Jessica E., Tourte, Gregory J. L., Tripati, Aradhna, Upchurch, Garland R., Wade, Bridget S., Wing, Scott L., Winguth, Arne M. E., Wright, Nicky M., Zachos, James C., Zeebe, Richard E.. (2017). The DeepMIP contribution to PMIP4: Experimental design for model simulations of the EECO, PETM, and pre-PETM (version 1.0). UCAR/NCAR - Library. http://n2t.net/ark:/85065/d7k0762f. Accessed 18 July 2025.

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