Estimates of present-day glacial rebound in the Lambert Glacier region, Antarctica
Date
1999
Authors
Zwartz, D
Tregoning, Paul
Johnston, Paul
Stone, John O
Lambeck, Kurt
Journal Title
Journal ISSN
Volume Title
Publisher
American Geophysical Union
Abstract
Changes in the ice load since the time of the Last Glacial Maximum (LGM) contribute to the present-day vertical motion of the Antarctic continent. The observation of these motions will reveal information on the ice load history. Predictions of uplift rates along a transect across the Lambert Glacier region, East Antarctica, from the coast to the southernmost rock outcrops of the Prince Charles Mountains have been computed for three deglaciation scenarios. The relative vertical velocities between sites on the transect are -7 to +7 mm/yr and are large enough to be detected from continuous GPS observations taken at permanent sites over several years. When available, such information will discriminate between the currently available models for deglaciation of East Antarctica.
Description
Keywords
Keywords: Glaciers; Mathematical models; Sea ice; Glacial rebound; Glacial geology; glacial rebound; ice sheet; isostasy; uplift; Antarctica
Citation
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Source
Geophysical Research Letters
Type
Journal article