Consistent biases in Antarctic sea ice concentration simulated by climate models

Roach, Lettie A.; Dean, Samuel M.; Renwick, James A.

doi:https://doi.org/10.5194/tc-12-365-2018

Articles | Volume 12, issue 1

https://doi.org/10.5194/tc-12-365-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-12-365-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 1

Research article

|

29 Jan 2018

Research article |

| 29 Jan 2018

Consistent biases in Antarctic sea ice concentration simulated by climate models

Lettie A. Roach, Samuel M. Dean, and James A. Renwick

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Final revised paper (published on 29 Jan 2018)
Preprint (discussion started on 18 Jul 2017)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review', Francois Massonnet, 22 Aug 2017
SC1: 'Interesting findings; three suggestions', Caroline Holmes, 12 Sep 2017
RC2: 'Review', Anonymous Referee #2, 23 Sep 2017
AC1: 'Response to all comments', Lettie Roach, 19 Oct 2017

Peer-review completion

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

AR by Lettie Roach on behalf of the Authors (14 Nov 2017) Author's response Manuscript

ED: Referee Nomination & Report Request started (22 Nov 2017) by Dirk Notz

RR by Francois Massonnet (05 Dec 2017)

RR by Anonymous Referee #2 (22 Dec 2017)

ED: Publish as is (22 Dec 2017) by Dirk Notz

Short summary

This paper evaluates Antarctic sea ice simulated by global climate models against satellite observations. We find biases in high-concentration and low-concentration sea ice that are consistent across the population of 40 models, in spite of the differences in physics between different models. Targeted model experiments show that biases in low-concentration sea ice can be significantly reduced by enhanced lateral melt, a result that may be valuable for sea ice model development.