Slow feedbacks resulting from strongly enhanced atmospheric methane mixing ratios in a chemistry–climate model with mixed-layer ocean

Stecher, Laura; Winterstein, Franziska; Dameris, Martin; Jöckel, Patrick; Ponater, Michael; Kunze, Markus

doi:https://doi.org/10.5194/acp-21-731-2021

Articles | Volume 21, issue 2

https://doi.org/10.5194/acp-21-731-2021

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

Special issue:

The Modular Earth Submodel System (MESSy) (ACP/GMD inter-journal...

https://doi.org/10.5194/acp-21-731-2021

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

Articles | Volume 21, issue 2

Research article

|

19 Jan 2021

Research article |

| 19 Jan 2021

Slow feedbacks resulting from strongly enhanced atmospheric methane mixing ratios in a chemistry–climate model with mixed-layer ocean

Laura Stecher, Franziska Winterstein, Martin Dameris, Patrick Jöckel, Michael Ponater, and Markus Kunze

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Final revised paper (published on 19 Jan 2021)
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Preprint (discussion started on 26 Jun 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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RC1: 'Solid model study, but presentation needs improvement', Anonymous Referee #1, 03 Aug 2020
- AC1: 'Reply to Anonymous Referee #1', Laura Stecher, 14 Oct 2020
RC2: 'Review of Stecher et al.', Peer Johannes Nowack, 05 Aug 2020
- AC2: 'Reply to Peer Johannes Nowack (Referee #2)', Laura Stecher, 14 Oct 2020

Peer-review completion

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

AR by Laura Stecher on behalf of the Authors (14 Oct 2020) Author's response Manuscript

ED: Publish as is (27 Oct 2020) by Holger Tost

AR by Laura Stecher on behalf of the Authors (30 Oct 2020) Manuscript

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Short summary

This study investigates the impact of strongly increased atmospheric methane mixing ratios on the Earth's climate. An interactive model system including atmospheric dynamics, chemistry, and a mixed-layer ocean model is used to analyse the effect of doubled and quintupled methane mixing ratios. We assess feedbacks on atmospheric chemistry and changes in the stratospheric circulation, focusing on the impact of tropospheric warming, and their relevance for the model's climate sensitivity.