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Switch-off of a major enhanced ice flow unit in East Antarctica

Rippin, David M.; Siegert, Martin J.; Bamber, Jonathan L.; Vaughan, David G.; Corr, Hugh F.J.. 2006 Switch-off of a major enhanced ice flow unit in East Antarctica. Geophysical Research Letters, 33 (15), L15501. 6, pp. 10.1029/2006GL026648

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Abstract/Summary

The East Antarctic Ice Sheet (EAIS) is the largest reservoir of ice on the planet by an order of magnitude. Compared with the West Antarctic Ice Sheet (WAIS), it is traditionally considered to be relatively stable, with only minor adjustments to its configuration over glacial-interglacial cycles. Here, we present the results of a radio-echo sounding survey from Coats Land, East Antarctica, which suggests that parts of the EAIS outlet drainage system may have changed significantly since the Last Glacial Maximum. We have identified an enhanced flow unit from buckled internal layering and smooth bed morphology that is no longer active. We believe this feature to have shut down at some point since the Last Glacial Maximum, ∼20 ka BP.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1029/2006GL026648
Programmes: BAS Programmes > Antarctic Funding Initiative Projects
ISSN: 0094-8276
Format Availability: Electronic, Print
Additional Information. Not used in RCUK Gateway to Research.: Full text not available from this repository
Additional Keywords: Ice sheets ; Flow ; Radio echo sounding ; Coats Land
NORA Subject Terms: Glaciology
Date made live: 02 Aug 2007 10:12
URI: http://nora.nerc.ac.uk/id/eprint/109

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