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GEOPHYSICAL RESEARCH LETTERS,
VOL. 32,
L07502,
4 PP., 2005
doi:10.1029/2004GL021947
Recent ice loss from the Fleming and other glaciers, Wordie Bay, West Antarctic Peninsula
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Centro de Estudios Cientificos, Valdivia, Chile
Radar Systems and Remote Sensing Laboratory, University of Kansas, Lawrence, Kansas, USA
Radar Systems and Remote Sensing Laboratory, University of Kansas, Lawrence, Kansas, USA
Laboratory for Hydrospheric Processes, Wallops Flight Facility, NASA Goddard Space Flight Center, Wallops Island, Virginia, USA
British Antarctic Survey, Cambridge, UK
Centro de Estudios Cientificos, Valdivia, Chile
Laboratory for Hydrospheric Processes, Wallops Flight Facility, EG&G, Wallops Island, Virginia, USA
British Antarctic Survey, Cambridge, UK
British Antarctic Survey, Cambridge, UK
Satellite radar interferometry data from 1995 to 2004, and airborne ice thickness data from 2002, reveal that the glaciers flowing into former Wordie Ice Shelf, West Antarctic Peninsula, discharge 6.8 ± 0.3 km3/yr of ice, which is 84 ± 30 percent larger than a snow accumulation of 3.7 ± 0.8 km3/yr over a 6,300 km2 drainage basin. Airborne and ICESat laser altimetry elevation data reveal glacier thinning at rates up to 2 m/yr. Fifty km from its ice front, Fleming Glacier flows 50 percent faster than it did in 1974 prior to the main collapse of Wordie Ice Shelf. We conclude that the glaciers accelerated following ice shelf removal, and have been thinning and losing mass to the ocean over the last decade. This and other observations suggest that the mass loss from the northern part of the Peninsula is not negligible at present.
Received 8 November 2004; accepted 3 March 2005; published 14 April 2005.
Citation: (2005), Recent ice loss from the Fleming and other glaciers, Wordie Bay, West Antarctic Peninsula, Geophys. Res. Lett., 32, L07502, doi:10.1029/2004GL021947.
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