Timing of recent accelerations of Pine Island Glacier, Antarctica
Geophysical Research Letters
By: I. Joughin, Eric Rignot, Christine E. Rosanova, Baerbel K. Lucchitta, and J. Bohlander
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Abstract
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.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Timing of recent accelerations of Pine Island Glacier, Antarctica |
| Series title | Geophysical Research Letters |
| DOI | 10.1029/2003GL017609 |
| Volume | 30 |
| Issue | 13 |
| Year Published | 2003 |
| Language | English |
| Publisher | American Geophysical Union |
| Contributing office(s) | Astrogeology Science Center |
| Description | 4 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Geophysical Research Letters |
| Country | Antarctica |
| Other Geospatial | Pine Island Glacier |
| Google Analytic Metrics | Metrics page |