Drolon, Vanessa Maisongrande, Philippe Berthier, Etienne Swinnen, Else Huss, Matthias 2016 We explore a new method to retrieve seasonal glacier mass balances (MBs) from low- resolution optical remote sensing. We derive annual winter and summer snow maps of the Alps during 1998–2014 using SPOT/VEGETATION 1 km resolution imagery. We combine these seasonal snow maps with a DEM to calculate a ‘mean regional’ altitude of snow (Z) in a region surrounding a glacier. Then, we compare the interannual variation of Z with the observed winter/summer glacier MB for 55 Alpine glaciers over 1998–2008, our calibration period. We find strong linear relationships in winter (mean R² = 0.84) and small errors for the reconstructed winter MB (mean RMSE = 158 mm (w.e.) a⁻¹). This is lower than errors generally assumed for the glaciological MB measurements (200–400 mm w.e. a⁻¹). Results for summer MB are also satisfying (mean R² and RMSE, respectively, 0.74 and 314 mm w.e. a⁻¹). Comparison with observed seasonal MB available over 2009–2014 (our evaluation period) for 19 glaciers in winter and 13 in summer shows good agreement in winter (RMSE = 405 mm w.e. a⁻¹) and slightly larger errors in summer (RMSE = 561 mm w.e. a⁻¹). These results indicate that our approach might be valuable for remotely determining the seasonal MB of glaciers over large regions. application/pdf https://folia.unifr.ch/global/documents/305398 https://folia.unifr.ch/documents/305398/files/hus_msg.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2016.78 info:eu-repo/semantics/openAccess License undefined Journal of Glaciology. - 2016, vol. 62, no. 235, p. 912–927 info:eu-repo/classification/udc/556 Monitoring of seasonal glacier mass balance over the European Alps using low-resolution optical satellite images http://purl.org/coar/resource_type/c_6501