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) contribute to the present- day vertical motion of the Antarctic continent. The obser- vation 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 deglacia- tion 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 in- formation will discriminate between the currently available models for deglaciation of East Antarctica.