LicenceThis tutorial aims at the acquisition by the students of knowledge on the interactions between human societies and the functioning of a hydrosystem in a mountain area. This tutorial leads the students to discover the specificities of precipitation in mountain areas. The theme of the ski tourism industry is presented in the introduction, but is only addressed at a later stage. Once the link between interannual variability of natural snow conditions and their economic effects on the ski tourism industry has been established, the tutorial presents an adaptation practice. Ski lift operators have favoured snowmaking as the key adaptation strategy. The tutorial discusses the effects of snowmaking on water supply and it relevance in the con...