Brief communication: Subglacial lake drainage beneath Isunguata Sermia, West Greenland: geomorphic and ice dynamic effects

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LIVINGSTONE, Stephen J, SOLE, Andrew J, STORRAR, Robert D, HARRISON, Devin, ROSS, Neil and BOWLING, Jade (2019). Brief communication: Subglacial lake drainage beneath Isunguata Sermia, West Greenland: geomorphic and ice dynamic effects. The Cryosphere, 13 (10), 2789-2796. [Article]

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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.
More Information
Official URL:
https://www.the-cryosphere.net/13/2789/2019/tc-13-...
Open Access URL:
https://www.the-cryosphere.net/13/2789/2019/tc-13-...
Open Access Version:
Published version
Uncontrolled Keywords:
0405 Oceanography; 0406 Physical Geography and Environmental Geoscience; Meteorology & Atmospheric Sciences
Page Range:
2789-2796

Identifiers

Identification Number:
10.5194/tc-13-2789-2019
ORCID for Stephen J Livingstone: ORCID iD orcid.org/0000-0002-7240-5037
ORCID for Andrew J Sole: ORCID iD orcid.org/0000-0001-5290-8967
ORCID for Robert D Storrar: ORCID iD orcid.org/0000-0003-4738-0082
ORCID for Devin Harrison: ORCID iD orcid.org/0000-0003-4647-1695
ORCID for Neil Ross: ORCID iD orcid.org/0000-0002-8338-4905
ORCID for Jade Bowling: ORCID iD orcid.org/0000-0002-9476-4815

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Item Type:
Article
SWORD Depositor:
Symplectic Elements
Depositing User:
Symplectic Elements
Date Deposited:
29 Oct 2019 17:00
Last Modified:
18 Dec 2024 22:18
Date of first compliant deposit:
29 October 2019
Date of first compliant Open Access:
29 October 2019
Version of first compliant deposit:
Version of Record
URI:
https://shura.shu.ac.uk/id/eprint/25365
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