Estimates of present-day glacial rebound in the Lambert Glacier region, Antarctica

Changes in the ice load since the time of the Last Glacial Maximum (LGM) co ntribute to the present-day vertical motion of the Antarctic continent. The observation of these motions will reveal information on the ice load histo ry. 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 s cenarios. The relative vertical velocities between sites on the transect ar e -7 to +7 mm/yr and are large enough to be detected from continuous GPS ob servations taken at permanent sites over several years. When available, suc h information will discriminate between the currently available models for deglaciation of East Antarctica.