Research of Ocean-ice BOundary InTeraction and Change around Antarctica (ROBOTICA) : GNSS measurements on Shirase Glacier

The Antarctic ice sheet is a huge heat sink acting as a feedback controller for adjusting global warming, so a loss of its mass would cause a great impact on the global climate change. Therefore, it is valuable to evaluate an Antarctic ice mass balance, which is a consequence of competition between an ice discharge and a snow accumulation. With objective of estimating the ice discharge around Lutzow-Holmbukta, East Antarctica, we measure three-dimensional (3D) ice flow velocity and ocean tides with a few dual-frequency GNSS systems installed on Shirase Glacier.