Improved Surface Mass Balance Mapping of Antarctica by Quantifying Wind-Blown and Sublimated Snow

A major goal of this proposal will be to improve the net surface mass balance estimate of Antarctica by incorporating the mass loss due to wind-drifted sublimation over wind-scour zones. The majority of the larger glaciers in East Antarctica have a more positive mass budget estimate compared with satellite estimates (Shepherd et al., 2012). Using the improved surface mass balance as an input, this study will reconcile the regional mass-budget estimates over East Antarctica with gravitational changes determined by GRACE. This proposal has direct implications to global climate change and Antarctic contribution to sea level rise.