Grounding Zone of Helheim Glacier, Greenland, From Terrestrial Radar Interferometry
Abstract Helheim Glacier, in East Greenland, is a major outlet glacier that discharges about 33 Gigatons of ice per year into the ocean.Helheim has been undergoing a retreat since 2003.Using a portable terrestrial Specialty Forks radar interferometer that scans the glacier every 2 min, we characterize its regime of tidal flexure at the ice front ma