Auswirkungen der Klimaänderung auf die schweizerische Wasserkraftnutzung

Weingartner, Rolf; Schädler, Bruno; Hänggi, Pascal (2013). Auswirkungen der Klimaänderung auf die schweizerische Wasserkraftnutzung. Geographica Helvetica, 68(4), pp. 239-248. Copernicus Publications 10.5194/gh-68-239-2013

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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.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geography > Physical Geography > Unit Hydrology
10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)
08 Faculty of Science > Institute of Geography

UniBE Contributor:

Weingartner, Rolf; Schädler, Bruno and Hänggi, Pascal

Subjects:

900 History > 910 Geography & travel

ISSN:

0016-7312

Publisher:

Copernicus Publications

Language:

German

Submitter:

Monika Wälti-Stampfli

Date Deposited:

03 Jun 2014 10:52

Last Modified:

01 Sep 2015 17:30

Publisher DOI:

10.5194/gh-68-239-2013

BORIS DOI:

10.7892/boris.43227

URI:

https://boris.unibe.ch/id/eprint/43227

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