Articles | Volume 14, issue 1
The Cryosphere, 14, 261–286, 2020
https://doi.org/10.5194/tc-14-261-2020
The Cryosphere, 14, 261–286, 2020
https://doi.org/10.5194/tc-14-261-2020

Research article 28 Jan 2020

Research article | 28 Jan 2020

Glacial sedimentation, fluxes and erosion rates associated with ice retreat in Petermann Fjord and Nares Strait, north-west Greenland

Kelly A. Hogan et al.

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Short summary
Glacial sediments in fjords hold a key record of environmental and ice dynamic changes during ice retreat. Here we use a comprehensive geophysical survey from the Petermann Fjord system in NW Greenland to map these sediments, identify depositional processes and calculate glacial erosion rates for the retreating palaeo-Petermann ice stream. Ice streaming is the dominant control on glacial erosion rates which vary by an order of magnitude during deglaciation and are in line with modern rates.