Simulating Marine Isotope Stage 7 with a coupled climate–ice sheet model

Choudhury, Dipayan; Timmermann, Axel; Schloesser, Fabian; Heinemann, Malte; Pollard, David

doi:https://doi.org/10.5194/cp-16-2183-2020

Articles | Volume 16, issue 6

https://doi.org/10.5194/cp-16-2183-2020

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

https://doi.org/10.5194/cp-16-2183-2020

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

Articles | Volume 16, issue 6

Research article

|

13 Nov 2020

Research article |

| 13 Nov 2020

Simulating Marine Isotope Stage 7 with a coupled climate–ice sheet model

Dipayan Choudhury, Axel Timmermann, Fabian Schloesser, Malte Heinemann, and David Pollard

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Final revised paper (published on 13 Nov 2020)
Supplement to the final revised paper
Preprint (discussion started on 27 Mar 2020)
Supplement to the preprint

Interactive discussion

Status: closed

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

- Printer-friendly version

- Supplement

RC1: 'Review of Choudhury et al.', Anonymous Referee #1, 29 Apr 2020
- AC1: 'Response to Reviewer 1 comments', Dipayan Choudhury, 19 Jun 2020
RC2: 'Review of Choudhury et al, 2020', Lev Tarasov, 22 May 2020
- AC2: 'Response to Reviewer 2 comments', Dipayan Choudhury, 19 Jun 2020

Peer-review completion

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

ED: Reconsider after major revisions (23 Jun 2020) by Qiuzhen Yin

AR by Dipayan Choudhury on behalf of the Authors (24 Jun 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (30 Jun 2020) by Qiuzhen Yin

RR by Anonymous Referee #1 (21 Jul 2020)

ED: Publish as is (24 Jul 2020) by Qiuzhen Yin

AR by Dipayan Choudhury on behalf of the Authors (27 Jul 2020) Author's response Manuscript

Short summary

Our study is the first study to conduct transient simulations over MIS 7, using a 3-D coupled climate–ice sheet model with interactive ice sheets in both hemispheres. We find glacial inceptions to be more sensitive to orbital variations, whereas glacial terminations need the concerted action of both orbital and CO₂ forcings. We highlight the issue of multiple equilibria and an instability due to stationary-wave–topography feedback that can trigger unrealistic North American ice sheet growth.