Research unit
Project number
Project title
Snow - HYDRO-CH2018 Synthesis Report Chapters: «Future Changes in Hydrology»

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Key words
Wasser, Studien
Key words
Water, Studies
Key words
Eaux, Études
Key words
Acque, Studi
Short description
Due to the great dependence on minus temperatures and precipitation, the snow cover reacts sensitively to temperatures above 0° Celsius and more or less precipitation. Due to climate change and the associated warming, the proportion of precipitation that falls as snow decreases measurably. In addition to this reduction in snowfall, the warmer temperatures also cause the snow cover to melt more quickly. The decline in snowfall has so far mainly affected lower altitudes, where winter temperatures often reach positive levels. The proportion of days with snowfall below 500 m above sea level has fallen by approx. 40% since 1961 and the water temporarily stored in the snow (snow water equivalent) in spring below 1000 m asl. even by approx. 75%.
Related documents
ETH Zürich, Versucheanstalt für Wasserbau, Hydrologie und Glaziologie, Zürich
Charged budget
Legal basis
Art. 57 Abs. 1 RVOG | Art. 57 al. 1 LOGA. | Art. 57 cpv. 1 LOGA
Copyright, Bundesbehörden der Schweizerischen Eidgenossenschaft | Droits d'auteur: autorités de la Confédération suisse | Diritti d'autore: autorità della Confederazione Svizzera | Dretgs d'autur: autoritads da la Confederaziun svizra | Copyright, Swiss federal authorities
BAFU, Abteilung Hydrologie, 3003 Bern