How warm was Greenland during the last interglacial period?

Landais, Amaelle; Masson-Delmotte, Valérie; Capron, Emilie; Langebroek, Petra M.; Bakker, Pepijn; Stone, Emma J.; Merz, Niklaus; Raible, Christoph C.; Fischer, Hubertus; Orsi, Anaïs; Prié, Frédéric; Vinther, Bo; Dahl-Jensen, Dorthe

doi:https://doi.org/10.5194/cp-12-1933-2016

Articles | Volume 12, issue 9

https://doi.org/10.5194/cp-12-1933-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/cp-12-1933-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 12, issue 9

Research article

|

29 Sep 2016

Research article |

| 29 Sep 2016

How warm was Greenland during the last interglacial period?

Amaelle Landais, Valérie Masson-Delmotte, Emilie Capron, Petra M. Langebroek, Pepijn Bakker, Emma J. Stone, Niklaus Merz, Christoph C. Raible, Hubertus Fischer, Anaïs Orsi, Frédéric Prié, Bo Vinther, and Dorthe Dahl-Jensen

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Final revised paper (published on 29 Sep 2016)
Preprint (discussion started on 18 Mar 2016)

Interactive discussion

Status: closed

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

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SC1: 'A few comments', Marcus Löfverström, 07 Apr 2016
RC1: '"How warm was Greenland during the last interglacial period?” by Amaelle Landais et al.', Anonymous Referee #1, 26 Apr 2016
RC2: 'Good idea but unjustified conclusion', Eric Wolff, 08 May 2016
AC1: 'answer from authors', Amaelle Landais, 07 Jun 2016

Peer-review completion

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

ED: Reconsider after major revisions (15 Jun 2016) by Andrea Dutton

AR by Amaelle Landais on behalf of the Authors (18 Jul 2016) Author's response Manuscript

ED: Publish subject to technical corrections (17 Sep 2016) by Andrea Dutton

AR by Amaelle Landais on behalf of the Authors (20 Sep 2016) Manuscript

Short summary

The last lnterglacial (LIG; 116 000 to 129 000 years before present) surface temperature at the upstream Greenland NEEM deposition site is estimated to be warmer by +7 to +11 °C compared to the preindustrial period. We show that under such warm temperatures, melting of snow probably led to a significant surface melting. There is a paradox between the extent of the Greenland ice sheet during the LIG and the strong warming during this period that models cannot solve.