Auswirkungen der Klimaänderung auf die schweizerische Wasserkraftnutzung

Geographica Helvetica. 2013;68(4):239-248 DOI 10.5194/gh-68-239-2013

 

Journal Homepage

Journal Title: Geographica Helvetica

ISSN: 0016-7312 (Print); 2194-8798 (Online)

Publisher: Copernicus Publications

Society/Institution: Department of Geography, University of Zurich (UZH)

LCC Subject Category: Geography. Anthropology. Recreation: Human ecology. Anthropogeography | Geography. Anthropology. Recreation: Geography (General) | Geography. Anthropology. Recreation: Mathematical geography. Cartography: Cartography

Country of publisher: Germany

Language of fulltext: German, Italian, French, English

Full-text formats available: PDF, XML

 

AUTHORS

R. Weingartner (Institute of Geography and Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland)
B. Schädler (Institute of Geography and Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland)
P. Hänggi (Institute of Geography and Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland)

EDITORIAL INFORMATION

Double blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 53 weeks

 

Abstract | Full Text

Hydraulic power contributes for a large part to electricity production in Switzerland. However, hydropower could be strongly affected by climate change. For that reason, the project CCWasserkraft – which results are summarised here – has been launched. In different studies, important aspects of the interactions between climate, hydrology and hydropower were investigated. Comprehensive simulations in representative catchments allowed quantifying the impacts of climate change on discharge and hydropower production. Finally, the results were extrapolated to whole Switzerland. The results show that significant changes are likely in the near future 2021–2050: an increase of hydropower production is projected for the winter half year, whereas stagnation or a decrease is expected in the summer half year. On the whole, the yearly hydropower production should remain constant or could even increase slightly. Projections for 2070–2099 remain uncertain. However, hydropower production from highly glaciated catchments located in southern and eastern Valais as well as catchments south of the Alps is expected to decline.