Satellite images library used and processed by B.Z. Carlson for his PhD. Consists in Landsat and SPOT images over 2013 - 2015 period from February to November. NDSI & NDVI have been processed for each image and reprjected on a 25 m grid (IGN DEM). Spatial extent cover Ecrins, Grandes-Rousses, Belledonne, South Maurienne & Cerces.