Nina Kirchner, Felicity Holmes and Abhay Prakash are co-authors to an artice published in the Nature Journal Communications Earth & Environment.

The paper is an outcome of the Ryder 2019 expedition with icebreaker Oden to Ryder Glacier, terminating in the previously uncharted Sherard Osborn Fjord, Northern Greenland.

- We show that  warmer subsurface water of Atlantic origin enters the fjord, but that a bathymetric sill located in the innermost fjord presently hinders these warm waters from reaching Ryder Glacier’s floating ice tongue, implying low rates of submarine melt, says Nina Kirchner.

A comparison with the neighboring Peterman Glacier/Fjord system sheds light on the glaciers'  dynamics and their vulnerability to inflow of warm Atlantic water, processes of high relevance for assessments of future sea level rise.

Read more about the results at the web for the Bolin Centre for Climate Research.

3D-visualization showing the seafloor bathymetry of the previously uncharted Sherard Osborn Fjord.
3D-visualization showing the seafloor bathymetry of the previously uncharted Sherard Osborn Fjord, north Greenland. The red line illustrates the inflowing warmer water of Atlantic origin that is partly prevented from reaching Ryder Glacier by a bathymetric shoal. Illustration by Martin Jakobsson.