Michel Baraër

Le lac Kathleen situé sur les territoires des Premières Nations Champagne et Aishihik (CAFN) et dans le parc national du lac Kluane. Les glaciers alpins reculent rapidement partout dans le monde, et leur perte de masse s’accélère. Dans plusieurs régions montagneuses, le recul est maintenant suffisamment rapide pour que la disparition de la majorité des petits glaciers au cours de ce siècle soit devenue le scénario le plus réaliste.

1 Introduction Glacier-fed rivers play a critical role in many large-scale drainage basins around the world (e.g., Huss and Hock 2018). In some basins, runoff contributions from glacier-ice melt are expected to increase by the end of the century, whilst other basins are projected to see reductions in runoff from glacier melt associated with declining glacier area (Huss and Hock 2018). Global modelling efforts (e.g., Huss and Hock 2018; Bliss et al.

Abstract The snow and glaciers of the Peruvian Andes provide vital water supplies in a region facing water scarcity and substantial glacier change. However, there remains a lack of understanding of snow processes and quantification of the contribution of melt to runoff. Here we apply a distributed glacio-hydrological model over the Rio Santa basin to disentangle the role of the cryosphere in the Andean water cycle.