A.J. Payne
Recent dramatic thinning of largest West-Antarctic ice stream triggered by oceans
Payne, A.J.; Vieli, A.; Shepherd, A.P.; Wingham, D.J.; Rignot, E.
Authors
A. Vieli
A.P. Shepherd
D.J. Wingham
E. Rignot
Abstract
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.
Citation
Payne, A., Vieli, A., Shepherd, A., Wingham, D., & Rignot, E. (2004). Recent dramatic thinning of largest West-Antarctic ice stream triggered by oceans. Geophysical Research Letters, 31, https://doi.org/10.1029/2004gl021284
Journal Article Type | Article |
---|---|
Publication Date | 2004 |
Deposit Date | Oct 6, 2008 |
Publicly Available Date | Mar 18, 2010 |
Journal | Geophysical Research Letters |
Print ISSN | 0094-8276 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 31 |
DOI | https://doi.org/10.1029/2004gl021284 |
Keywords | Hydrology, Glaciology, Mathematical Geophysics, Modeling, Information Related to Geographic Region, Antarctica. |
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Copyright Statement
© 2004 American Geophysical Union.
Payne, A. J. and Vieli, A. and Shepherd, A. P. and Wingham, D. J. and Rignot, E., (2004),
'Recent dramatic thinning of largest West-Antarctic ice stream triggered by oceans.',
Geophysical research letters., 31., L23401., 10.1029/2004GL021284 (DOI). To view the published open abstract, go to http://dx.doi.org and enter the DOI.
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