Fig. 6: Schematic illustration showing how Atlantic Water (AW) is interpreted to flow through the <1 km wide and 390 m deep channel across the inner sill to be mixed and cooled by glacially modified water (GMW). | Communications Earth & Environment

Fig. 6: Schematic illustration showing how Atlantic Water (AW) is interpreted to flow through the <1 km wide and 390 m deep channel across the inner sill to be mixed and cooled by glacially modified water (GMW).

From: Ryder Glacier in northwest Greenland is shielded from warm Atlantic water by a bathymetric sill

Fig. 6

Lighter polar surface water (PSW) floats above the GMW layer. With a shallowest point of about 200 m, the main part of the inner sill in front of Ryder Glacier is too shallow for the warmer core of AW to flow across. Inland of the inner sill, and beyond the extent of our multibeam mapping, the bathymetric profile shown has been extracted from BedMachine v333. The extent of Ryder Glacier’s ice tongue is inferred from satellite images from August 2019.

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