Physics – Geophysics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3123401p&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 23, CiteID L23401
Physics
Geophysics
58
Hydrology: Glaciology (1863), Mathematical Geophysics: Modeling, Information Related To Geographic Region: Antarctica
Scientific paper
A growing body of observational data suggests that Pine Island Glacier (PIG) is changing on decadal or shorter timescales. These changes may have far-reaching consequences for the future of the West Antarctic ice sheet (WAIS) and global sea levels because of PIG's role as the ice sheet's primary drainage portal. We test the hypothesis that these changes are triggered by the adjoining ocean. Specifically, we employ an advanced numerical ice-flow model to simulate the effects of perturbations at the grounding line on PIG's dynamics. The speed at which these changes are propagated upstream implies a tight coupling between ice-sheet interior and surrounding ocean.
Payne Antony J.
Rignot Eric
Shepherd Andrew P.
Vieli Andreas
Wingham Duncan J.
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