Browse by author
Lookup NU author(s): Professor Matt King
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
A major West Antarctic ice stream discharges by sudden and brief periods of very rapid motion paced by oceanic tidal oscillations of about 1 meter. Acceleration to speeds greater than 1 meter per hour and deceleration back to a stationary state occur in minutes or less. Slip propagates at approximately 88 meters per second, suggestive of a shear wave traveling within the subglacial till. A model of an episodically slipping friction-locked fault reproduces the observed quasi-periodic event timing, demonstrating an ice stream's ability to change speed rapidly and its extreme sensitivity to subglacial conditions and variations in sea level.
Author(s): Bindschadler RA, King MA, Alley RB, Anandakrishnan S, Padman L
Publication type: Article
Publication status: Published
Journal: Science
Year: 2003
Volume: 301
Issue: 5636
Pages: 1087-1089
ISSN (print): 0036-8075
ISSN (electronic): 1095-9203
Publisher: American Association for the Advancement of Science
URL: http://dx.doi.org/10.1126/science.1087231
DOI: 10.1126/science.1087231
Altmetrics provided by Altmetric