Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland
Source at https://doi.org/10.1029/2018GL079787 . The delivery of surface meltwater through englacial drainage systems to the bed of the Greenland Ice Sheet modulates ice flow through basal lubrication. Recent studies in Southeast Greenland have identified a perennial firn aquifer; however, there are...
Published in: | Geophysical Research Letters |
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Language: | English |
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2018
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Online Access: | https://hdl.handle.net/10037/13937 https://doi.org/10.1029/2018GL079787 |
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ftunivtroemsoe:oai:munin.uit.no:10037/13937 2023-05-15T14:26:58+02:00 Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland Kendrick, A.K. Schroeder, D.M. Chu, W. Young, T.J. Christoffersen, P. Todd, J. Doyle, S.H. Box, J.E. Hubbard, A. Hubbard, B. Brennan, P.V. Nicholls, K. W. Lok, L.B. 2018-09-24 https://hdl.handle.net/10037/13937 https://doi.org/10.1029/2018GL079787 eng eng American Geophysical Union(AGU) Geophysical Research Letters info:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/. Kendrick, A.K., Schroeder, D.M., Chu, W., Young, T.J., Christoffersen, P., Todd, J., … Lok, L.B. (2018). Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland. Geophysical Research Letters, 45. https://doi.org/ 10.1029/2018GL079787 FRIDAID 1618654 doi:10.1029/2018GL079787 0094-8276 1944-8007 https://hdl.handle.net/10037/13937 openAccess VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 Glacial hydrology Radio glaciology Englacial storage Subglacial drainage Greenland Ice Sheet Journal article Tidsskriftartikkel Peer reviewed 2018 ftunivtroemsoe https://doi.org/10.1029/2018GL079787 2021-06-25T17:56:09Z Source at https://doi.org/10.1029/2018GL079787 . The delivery of surface meltwater through englacial drainage systems to the bed of the Greenland Ice Sheet modulates ice flow through basal lubrication. Recent studies in Southeast Greenland have identified a perennial firn aquifer; however, there are few observations quantifying the input or residence time of water within the englacial system and it remains unknown whether water can be stored within solid ice. Using hourly stationary radar measurements, we present observations of englacial and episodic subglacial water in the ablation zone of Store Glacier in West Greenland. We find significant storage of meltwater in solid ice damaged by crevasses extending down to 48 m below the ice surface during the summer which is released or refrozen during winter. This is a significant hydrological component newly observed in the ablation zone of Greenland that could delay the delivery of meltwater to the bed, changing the ice dynamic response to surface meltwater. Article in Journal/Newspaper Arctic glacier Greenland Ice Sheet University of Tromsø: Munin Open Research Archive Greenland Geophysical Research Letters 45 19 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 Glacial hydrology Radio glaciology Englacial storage Subglacial drainage Greenland Ice Sheet |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 Glacial hydrology Radio glaciology Englacial storage Subglacial drainage Greenland Ice Sheet Kendrick, A.K. Schroeder, D.M. Chu, W. Young, T.J. Christoffersen, P. Todd, J. Doyle, S.H. Box, J.E. Hubbard, A. Hubbard, B. Brennan, P.V. Nicholls, K. W. Lok, L.B. Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 Glacial hydrology Radio glaciology Englacial storage Subglacial drainage Greenland Ice Sheet |
description |
Source at https://doi.org/10.1029/2018GL079787 . The delivery of surface meltwater through englacial drainage systems to the bed of the Greenland Ice Sheet modulates ice flow through basal lubrication. Recent studies in Southeast Greenland have identified a perennial firn aquifer; however, there are few observations quantifying the input or residence time of water within the englacial system and it remains unknown whether water can be stored within solid ice. Using hourly stationary radar measurements, we present observations of englacial and episodic subglacial water in the ablation zone of Store Glacier in West Greenland. We find significant storage of meltwater in solid ice damaged by crevasses extending down to 48 m below the ice surface during the summer which is released or refrozen during winter. This is a significant hydrological component newly observed in the ablation zone of Greenland that could delay the delivery of meltwater to the bed, changing the ice dynamic response to surface meltwater. |
format |
Article in Journal/Newspaper |
author |
Kendrick, A.K. Schroeder, D.M. Chu, W. Young, T.J. Christoffersen, P. Todd, J. Doyle, S.H. Box, J.E. Hubbard, A. Hubbard, B. Brennan, P.V. Nicholls, K. W. Lok, L.B. |
author_facet |
Kendrick, A.K. Schroeder, D.M. Chu, W. Young, T.J. Christoffersen, P. Todd, J. Doyle, S.H. Box, J.E. Hubbard, A. Hubbard, B. Brennan, P.V. Nicholls, K. W. Lok, L.B. |
author_sort |
Kendrick, A.K. |
title |
Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland |
title_short |
Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland |
title_full |
Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland |
title_fullStr |
Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland |
title_full_unstemmed |
Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland |
title_sort |
surface meltwater impounded by seasonal englacial storage in west greenland |
publisher |
American Geophysical Union(AGU) |
publishDate |
2018 |
url |
https://hdl.handle.net/10037/13937 https://doi.org/10.1029/2018GL079787 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Arctic glacier Greenland Ice Sheet |
genre_facet |
Arctic glacier Greenland Ice Sheet |
op_relation |
Geophysical Research Letters info:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/. Kendrick, A.K., Schroeder, D.M., Chu, W., Young, T.J., Christoffersen, P., Todd, J., … Lok, L.B. (2018). Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland. Geophysical Research Letters, 45. https://doi.org/ 10.1029/2018GL079787 FRIDAID 1618654 doi:10.1029/2018GL079787 0094-8276 1944-8007 https://hdl.handle.net/10037/13937 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1029/2018GL079787 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
19 |
_version_ |
1766300518029721600 |