Early Eocene vigorous ocean overturning and its contribution to a warm Southern Ocean

Zhang, Yurui; Huck, Thierry; Lique, Camille; Donnadieu, Yannick; Ladant, Jean-Baptiste; Rabineau, Marina; Aslanian, Daniel

doi:https://doi.org/10.5194/cp-16-1263-2020

Articles | Volume 16, issue 4

https://doi.org/10.5194/cp-16-1263-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-16-1263-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 4

Research article

|

17 Jul 2020

Research article |

| 17 Jul 2020

Early Eocene vigorous ocean overturning and its contribution to a warm Southern Ocean

Yurui Zhang, Thierry Huck, Camille Lique, Yannick Donnadieu, Jean-Baptiste Ladant, Marina Rabineau, and Daniel Aslanian

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Final revised paper (published on 17 Jul 2020)
Supplement to the final revised paper
Preprint (discussion started on 16 Jan 2020)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review - trasnsferred from previous journal', Dan Lunt, 20 Feb 2020
- AC1: 'Authors’ response to Dan Lunt (Referee #1)', Yurui Zhang, 14 Apr 2020
RC2: 'Review: 'Early Eocene vigorous ocean overturning and its contribution to a warm Southern Ocean’ by Zhang et al.', Anonymous Referee #2, 20 Mar 2020
- AC2: 'Authors’ response to Referee #2', Yurui Zhang, 14 Apr 2020

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (02 Jun 2020) by Yves Godderis

AR by Yurui Zhang on behalf of the Authors (02 Jun 2020) Manuscript

ED: Publish as is (09 Jun 2020) by Yves Godderis

AR by Yurui Zhang on behalf of the Authors (12 Jun 2020)

Post-review adjustments

AA: Author's adjustment | EA: Editor approval

AA by Yurui Zhang on behalf of the Authors (14 Jul 2020) Author's adjustment Manuscript

EA: Adjustments approved (15 Jul 2020) by Yves Godderis

Short summary

The early Eocene (~ 55 Ma) was an extreme warm period accompanied by a high atmospheric CO₂ level. We explore the relationships between ocean dynamics and this warm climate with the aid of the IPSL climate model. Our results show that the Eocene was characterized by a strong overturning circulation associated with deepwater formation in the Southern Ocean, which is analogous to the present-day North Atlantic. Consequently, poleward ocean heat transport was strongly enhanced.