The largest uncertainty in ice sheet models used to predict future sea-level rise originates from our limited understanding of processes at the ice-bed interface. Near glacier termini, where basal sliding controls ice flow, most predictive ice sheet models use a parameterization of sliding that has been theoretically derived for glacier flow over a hard bed. We use information about short-term variability in glacier velocity to help constrain these theoretical assumptions.

Deploying time-lapse and thermal cameras at Kangerdlugssup Sermerssua, West Greenland.