Bartholomew, I., Nienow, P., Sole, A. et al. (4 more authors) (2011) Supraglacial forcing of subglacial drainage in the ablation zone of the Greenland ice sheet. Geophysical Research Letters, 38 (8). L08502. ISSN 0094-8276
Abstract
We measure hydrological parameters in meltwater draining from an outlet glacier in west Greenland to investigate seasonal changes in the structure and behaviour of the hydrological system of a large catchment in the Greenland ice sheet (GrIS). Our data reveal seasonal upglacier expansion and increase in hydraulic efficiency of the subglacial drainage system, across a catchment >600 km2, to distances >50 km from the ice-sheet margin. This expansion occurs episodically in response to the drainage of surface meltwaters into a hitherto inefficient subglacial drainage system as new input locations become active progressively further upglacier; this system is similar to Alpine glaciers. These observations provide the first synopsis of seasonal hydrological behaviour in the ablation zone of the GrIS.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2011 American Geophysical Union. This is an author produced version of a paper subsequently published in Geophysical Research Letters. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Greenland; subglacial |
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: | 07 Jul 2014 11:03 |
Last Modified: | 07 Jul 2014 11:04 |
Published Version: | http://dx.doi.org/10.1029/2011GL047063 |
Status: | Published |
Publisher: | American Geophysical Union |
Refereed: | Yes |
Identification Number: | 10.1029/2011GL047063 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:79531 |