Brief Communication: Sudden drainage of a subglacial lake beneath the Greenland Ice Sheet
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Published:2015-01-15
Issue:1
Volume:9
Page:103-108
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ISSN:1994-0424
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Container-title:The Cryosphere
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language:en
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Short-container-title:The Cryosphere
Author:
Howat I. M., Porter C., Noh M. J., Smith B. E.ORCID, Jeong S.
Abstract
Abstract. We report on the appearance of a 2 km wide, 70 m deep circular depression located 50 km inland of the southwestern margin of the Greenland Ice Sheet that provides the first direct evidence for concentrated, long-term storage, and sudden release, of meltwater at the bed. Drainage of the lake may have been triggered by the recent increase in meltwater runoff. The abundance of such lakes and their potential importance to the ice sheet's hydrologic system and flow regime remain unknown.
Publisher
Copernicus GmbH
Subject
Earth-Surface Processes,Water Science and Technology
Reference18 articles.
1. Bartholomew, I., Nienow, P., Sole, A., Mair, D., Cowton, T., Palmer, S., and Wadham, J.: Supraglacial forcing of subglacial drainage in the ablation zone of the Greenland ice sheet, Geophys. Res. Lett., 38, L08502, https://doi.org/10.1029/2011GL047063, 2011. 2. Borsa, A. A., Moholdt, G., Fricker, H. A., and Brunt, K. M.: A range correction for ICESat and its potential impact on ice-sheet mass balance studies, The Cryosphere, 8, 345–357, https://doi.org/10.5194/tc-8-345-2014, 2014. 3. Chandler, D. M., Wadham, J. L., Lis, G. P., Cowton, T., Sole, A., Bartholomew, I., Telling, J., Nienow, P., Bagshaw, E. B., Mair, D., Vinen, S., and Hubbard, A.: Evolution of the subglacial drainage system beneath the Greenland Ice Sheet revealed by tracers, Nature Geosci., 6, 195–198, 2013. 4. Clarke, G. C.: Glaciology: Ice-sheet Plumbing in Antarctica, Nature, 440, 1000–1001, https://doi.org/10.1038/4401000a, 2006. 5. Cuffey, K. M. and Paterson, W. S. B.: The Physics of Glaciers, 4, Butterworth-Heinemann, Amsterdam, 72–73, 2010.
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