Spring-water temperature from rock glaciers in the Val di Sole catchment (Easter Italian Alps)

Spring-water temperature was measured at 131 springs with elevation ranging between 1698 and 3039 m a.s.l. in the Val di Sole catchment (Eaastern Italian Alps). Measurements were taken from mid-August to mid-October, after the end of the snowmelt. Most springs have been measured once per year from 2018 to 2020, and a small group of them was also measured in 2021. Spring-water temperature was used to investigate the spatial distribution of mountain permafrost in the study area, and in particular its occurrence in rock glaciers classified as relict.