Lookup NU author(s): Devin Harrison,
Dr Neil Ross
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
We report three active subglacial lakes within 2 km of the lateral margin of Isunguata Sermia, West Greenland, identified by differencing time-stamped ArcticDEM strips. Each lake underwent one drainage–refill event between 2009 and 2017, with two lakes draining in < 1 month in August 2014 and August 2015. The 2015 drainage caused a ∼ 1-month down-glacier slowdown in ice flow and flooded the foreland, aggrading the proglacial channel by 8 m. The proglacial flooding confirms the ice-surface elevation anomalies as subglacial water bodies and demonstrates how their drainage can significantly modify proglacial environments. These subglacial lakes offer accessible targets for geophysical investigations and exploration.
Author(s): Livingstone SJ, Sole AJ, Storrar RD, Harrison D, Ross N, Bowling J
Publication type: Article
Publication status: Published
Journal: The Cryosphere
Print publication date: 29/10/2019
Online publication date: 29/10/2019
Acceptance date: 01/10/2019
Date deposited: 31/10/2019
ISSN (print): 1994-0416
ISSN (electronic): 1994-0424
Publisher: Copernicus GmbH
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