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