The Larsen Shelf Ice
نویسندگان
چکیده
منابع مشابه
Larsen ice shelf has progressively thinned.
The retreat and collapse of Antarctic Peninsula ice shelves in tandem with a regional atmospheric warming has fueled speculation as to how these events may be related. Satellite radar altimeter measurements show that between 1992 and 2001 the Larsen Ice Shelf lowered by up to 0.27 +/- 0.11 meters per year. The lowering is explained by increased summer melt-water and the loss of basal ice throug...
متن کاملLarsen Ice Shelf Has Progressively Thinned
during each event are also indicated. June 1982 to June 1983 (intense event, 1 transect); August 1986 to July 1987 (medium, 7 transects); October 1991 to May 1992 (marginal intensity, 2 transects); October 1992 to October 1993 (marginal, 3 transects); April 1994 to June 1995 (marginal, 8 transects); and April 1997 to April 1998 (intense, 15 transects). 12. To test biases caused by undersampling...
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We modelled the flow of the Larsen C and northernmost Larsen D ice shelves, Antarctic Peninsula, using a model of continuum mechanics of ice flow, and applied a fracture criterion to the simulated velocities to investigate the ice shelf’s present-day stability. Constraints come from satellite data and geophysical measurements from the 2008/09 austral summer. Ice-shelf thickness was derived from...
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[1] Interferometric synthetic-aperture radar data collected by ERS-1/2 and Radarsat-1 satellites show that Antarctic Peninsula glaciers sped up significantly following the collapse of Larsen B ice shelf in 2002. Hektoria, Green and Evans glaciers accelerated eightfold between 2000 and 2003 and decelerated moderately in 2003. Jorum and Crane glaciers accelerated twofold in early 2003 and threefo...
متن کاملThe Topography and Surface Characteristics of the Larsen Ice Shelf, Antarctica, Using Satellite Altimetry
A comprehensive survey of the Larsen Ice Shelf has been conducted using precise orbit and re tracked Seasat radar-altimeter data with editing of erroneous values resulting from intrumental artefacts. Contour maps of elevation and radar back-scatter (with absolute accuracies of I m and 2 dB, respectively) have been produced and it has also been possible to map rifts, grounding points, rough terr...
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ژورنال
عنوان ژورنال: Journal of Glaciology
سال: 1950
ISSN: 0022-1430,1727-5652
DOI: 10.1017/s0022143000012715