Brief communication: Subglacial lake drainage beneath Isunguata Sermia, West Greenland: geomorphic and ice dynamic effects
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 Aug...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00040811 2023-05-15T16:21:11+02:00 Brief communication: Subglacial lake drainage beneath Isunguata Sermia, West Greenland: geomorphic and ice dynamic effects Livingstone, Stephen J. Sole, Andrew J. Storrar, Robert D. Harrison, Devin Ross, Neil Bowling, Jade 2019-10 electronic https://doi.org/10.5194/tc-13-2789-2019 https://noa.gwlb.de/receive/cop_mods_00040811 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00040433/tc-13-2789-2019.pdf https://tc.copernicus.org/articles/13/2789/2019/tc-13-2789-2019.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-13-2789-2019 https://noa.gwlb.de/receive/cop_mods_00040811 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00040433/tc-13-2789-2019.pdf https://tc.copernicus.org/articles/13/2789/2019/tc-13-2789-2019.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2019 ftnonlinearchiv https://doi.org/10.5194/tc-13-2789-2019 2022-02-08T22:41:56Z 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. Article in Journal/Newspaper glacier Greenland The Cryosphere Niedersächsisches Online-Archiv NOA Greenland The Cryosphere 13 10 2789 2796 |
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article Verlagsveröffentlichung Livingstone, Stephen J. Sole, Andrew J. Storrar, Robert D. Harrison, Devin Ross, Neil Bowling, Jade Brief communication: Subglacial lake drainage beneath Isunguata Sermia, West Greenland: geomorphic and ice dynamic effects |
topic_facet |
article Verlagsveröffentlichung |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Livingstone, Stephen J. Sole, Andrew J. Storrar, Robert D. Harrison, Devin Ross, Neil Bowling, Jade |
author_facet |
Livingstone, Stephen J. Sole, Andrew J. Storrar, Robert D. Harrison, Devin Ross, Neil Bowling, Jade |
author_sort |
Livingstone, Stephen J. |
title |
Brief communication: Subglacial lake drainage beneath Isunguata Sermia, West Greenland: geomorphic and ice dynamic effects |
title_short |
Brief communication: Subglacial lake drainage beneath Isunguata Sermia, West Greenland: geomorphic and ice dynamic effects |
title_full |
Brief communication: Subglacial lake drainage beneath Isunguata Sermia, West Greenland: geomorphic and ice dynamic effects |
title_fullStr |
Brief communication: Subglacial lake drainage beneath Isunguata Sermia, West Greenland: geomorphic and ice dynamic effects |
title_full_unstemmed |
Brief communication: Subglacial lake drainage beneath Isunguata Sermia, West Greenland: geomorphic and ice dynamic effects |
title_sort |
brief communication: subglacial lake drainage beneath isunguata sermia, west greenland: geomorphic and ice dynamic effects |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/tc-13-2789-2019 https://noa.gwlb.de/receive/cop_mods_00040811 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00040433/tc-13-2789-2019.pdf https://tc.copernicus.org/articles/13/2789/2019/tc-13-2789-2019.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland The Cryosphere |
genre_facet |
glacier Greenland The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-13-2789-2019 https://noa.gwlb.de/receive/cop_mods_00040811 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00040433/tc-13-2789-2019.pdf https://tc.copernicus.org/articles/13/2789/2019/tc-13-2789-2019.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-13-2789-2019 |
container_title |
The Cryosphere |
container_volume |
13 |
container_issue |
10 |
container_start_page |
2789 |
op_container_end_page |
2796 |
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1766009196902350848 |