Annual and Seasonal Glacier-Wide Surface Mass Balance Quantified from Changes in Glacier Surface State: A Review on Existing Methods Using Optical Satellite Imagery. - Antoine Rabatel; Pascal Sirguey; Vanessa Drolon; Philippe Maisongrande; Yves Arnaud; Etienne Berthier; Lucas Davaze; Jean-Pierre Dedieu; Marie Dumont (Remote. Sens., 2017)