Articles | Volume 14, issue 3
https://doi.org/10.5194/tc-14-841-2020
https://doi.org/10.5194/tc-14-841-2020
Research article
 | 
06 Mar 2020
Research article |  | 06 Mar 2020

Exceptionally high heat flux needed to sustain the Northeast Greenland Ice Stream

Silje Smith-Johnsen, Basile de Fleurian, Nicole Schlegel, Helene Seroussi, and Kerim Nisancioglu

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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (08 Jan 2020) by Nanna Bjørnholt Karlsson
AR by Silje Smith-Johnsen on behalf of the Authors (09 Jan 2020)  Author's response   Manuscript 
ED: Publish subject to minor revisions (review by editor) (27 Jan 2020) by Nanna Bjørnholt Karlsson
AR by Basile de Fleurian on behalf of the Authors (03 Feb 2020)  Author's response   Manuscript 
ED: Publish as is (06 Feb 2020) by Nanna Bjørnholt Karlsson
AR by Basile de Fleurian on behalf of the Authors (07 Feb 2020)  Manuscript 
Short summary
The Northeast Greenland Ice Stream (NEGIS) drains a large part of Greenland and displays fast flow far inland. However, the flow pattern is not well represented in ice sheet models. The fast flow has been explained by abnormally high geothermal heat flux. The heat melts the base of the ice sheet and the water produced may lubricate the bed and induce fast flow. By including high geothermal heat flux and a hydrology model, we successfully reproduce NEGIS flow pattern in an ice sheet model.