Livingstone, S.J. orcid.org/0000-0002-7240-5037, Sole, A.J. orcid.org/0000-0001-5290-8967, Storrar, R.D. et al. (3 more authors) (2019) Brief communication : subglacial lake drainage beneath Isunguata Sermia, west Greenland : geomorphic and ice dynamic effects. The Cryosphere, 13 (10). pp. 2789-2796. ISSN 1994-0416
Abstract
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.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 The Authors. This work is distributed under the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/). |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Social Sciences (Sheffield) > Department of Geography (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 30 Oct 2019 13:46 |
Last Modified: | 30 Oct 2019 13:46 |
Status: | Published |
Publisher: | European Geosciences Union |
Refereed: | Yes |
Identification Number: | 10.5194/tc-13-2789-2019 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:152739 |