Articles | Volume 11, issue 9
Research article
18 Sep 2015
Research article |  | 18 Sep 2015

Coupled Northern Hemisphere permafrost–ice-sheet evolution over the last glacial cycle

M. Willeit and A. Ganopolski


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Short summary
In this paper we explore the permafrost–ice-sheet interaction using the fully coupled climate–ice-sheet model CLIMBER-2 with the addition of a newly developed permafrost module. We find that permafrost has a moderate but significant effect on ice sheet dynamics during the last glacial cycle. In particular at the Last Glacial Maximum the inclusion of permafrost leads to a 15m sea level equivalent increase in Northern Hemisphere ice volume when permafrost is included.