Measurement of Antarctic ice sheet movements in vicinity of Syowa Station through one year of GPS observations

Abstract

We conducted GPS observations on the Antarctic ice sheet in the vicinity of Syowa Station, during wintering of the 48th Japanese Antarctic Research Expedition (JARE-48). Continuous GPS data for about one year was obtained for the first time. The flow velocity of the ice sheet, as determined by GPS analysis was 5.1m/year, or 14mm/day, and the direction was WNW. The movement of the ice sheet was fairly constant and no seasonal variations in velocity were observed.