DeepMIP: model intercomparison of early Eocene climatic optimum (EECO) large-scale climate features and comparison with proxy data

Lunt, Daniel J.; Bragg, Fran; Chan, Wing-Le; Hutchinson, David K.; Ladant, Jean-Baptiste; Morozova, Polina; Niezgodzki, Igor; Steinig, Sebastian; Zhang, Zhongshi; Zhu, Jiang; Abe-Ouchi, Ayako; Anagnostou, Eleni; de Boer, Agatha M.; Coxall, Helen K.; Donnadieu, Yannick; Foster, Gavin; Inglis, Gordon N.; Knorr, Gregor; Langebroek, Petra M.; Lear, Caroline H.; Lohmann, Gerrit; Poulsen, Christopher J.; Sepulchre, Pierre; Tierney, Jessica E.; Valdes, Paul J.; Volodin, Evgeny M.; Dunkley Jones, Tom; Hollis, Christopher J.; Huber, Matthew; Otto-Bliesner, Bette L.

doi:https://doi.org/10.5194/cp-17-203-2021

Articles | Volume 17, issue 1

https://doi.org/10.5194/cp-17-203-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Paleoclimate Modelling Intercomparison Project phase 4 (PMIP4)...

https://doi.org/10.5194/cp-17-203-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 1

Research article

|

15 Jan 2021

Research article |

| 15 Jan 2021

DeepMIP: model intercomparison of early Eocene climatic optimum (EECO) large-scale climate features and comparison with proxy data

Daniel J. Lunt, Fran Bragg, Wing-Le Chan, David K. Hutchinson, Jean-Baptiste Ladant, Polina Morozova, Igor Niezgodzki, Sebastian Steinig, Zhongshi Zhang, Jiang Zhu, Ayako Abe-Ouchi, Eleni Anagnostou, Agatha M. de Boer, Helen K. Coxall, Yannick Donnadieu, Gavin Foster, Gordon N. Inglis, Gregor Knorr, Petra M. Langebroek, Caroline H. Lear, Gerrit Lohmann, Christopher J. Poulsen, Pierre Sepulchre, Jessica E. Tierney, Paul J. Valdes, Evgeny M. Volodin, Tom Dunkley Jones, Christopher J. Hollis, Matthew Huber, and Bette L. Otto-Bliesner

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Final revised paper (published on 15 Jan 2021)
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Preprint (discussion started on 02 Jan 2020)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review', Anonymous Referee #1, 19 Feb 2020
- AC2: 'Response to Reviewer 1 and Reviewer 2', Dan Lunt, 26 Aug 2020
RC2: 'Review', Anonymous Referee #2, 26 Mar 2020
- AC1: 'See Combined response to Reviewer 1', Dan Lunt, 26 Aug 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Reconsider after major revisions (12 Sep 2020) by Irina Rogozhina

AR by Dan Lunt on behalf of the Authors (13 Sep 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (21 Sep 2020) by Irina Rogozhina

RR by Anonymous Referee #1 (30 Sep 2020)

ED: Publish subject to minor revisions (review by editor) (19 Oct 2020) by Irina Rogozhina

AR by Dan Lunt on behalf of the Authors (23 Oct 2020) Author's response Manuscript

ED: Publish as is (01 Nov 2020) by Irina Rogozhina

AR by Dan Lunt on behalf of the Authors (20 Nov 2020) Author's response Manuscript

Short summary

This paper presents the first modelling results from the Deep-Time Model Intercomparison Project (DeepMIP), in which we focus on the early Eocene climatic optimum (EECO, 50 million years ago). We show that, in contrast to previous work, at least three models (CESM, GFDL, and NorESM) produce climate states that are consistent with proxy indicators of global mean temperature and polar amplification, and they achieve this at a CO₂ concentration that is consistent with the CO₂ proxy record.