The Cryosphere
The Cryosphere
TC
Articles | Volume 17, issue 6
Articles | Volume 17, issue 6
https://doi.org/10.5194/tc-17-2455-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-17-2455-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 6
Research article
 | 
22 Jun 2023
Research article |  | 22 Jun 2023

Hydraulic suppression of basal glacier melt in sill fjords

Johan Nilsson, Eef van Dongen, Martin Jakobsson, Matt O'Regan, and Christian Stranne

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Latest update: 28 Oct 2025
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Short summary
We investigate how topographical sills suppress basal glacier melt in Greenlandic fjords. The basal melt drives an exchange flow over the sill, but there is an upper flow limit set by the Atlantic Water features outside the fjord. If this limit is reached, the flow enters a new regime where the melt is suppressed and its sensitivity to the Atlantic Water temperature is reduced.
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