Timing of Recent Accelerations of Pine Island Glacier, Antarctica

Details Timing of Recent Accelerations of Pine Island Glacier, Antarctica Timing of Recent Accelerations of Pine Island Glacier, Antarctica

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30m..39j&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 13, pp. 39-1, CiteID 1706, DOI 10.1029/2003GL017609

Physics

Geophysics

28

Exploration Geophysics: Remote Sensing, Hydrology: Glaciology (1863), Oceanography: Physical: Sea Level Variations, Information Related To Geographic Region: Antarctica

Scientific paper

We have used Interferometric Synthetic Aperture Radar (InSAR) data and sequential Landsat imagery to identify and temporally constrain two acceleration events on Pine Island Glacier (PIG). These two events are separated by a period of at least seven years (1987-1994). The change in discharge between two flux gates indicates that the majority of the increase in discharge associated with the second acceleration originates well inland (>80 km) from the grounding line. An analysis indicates that changes in driving stress consistent with observed thinning rates are sufficient in magnitude to explain much of the acceleration.

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