Zierl and Bugmann, 2005
This excerpt has been prepared by Mareen E. Hofmann in the context of
the ADAM "Meta-analysis of impacts, vulnerability and adaptation (CCIVA)
assessments in Europe". Please note that the corresponding study was not
itself a part of the ADAM project!
Zierl, B.; Bugmann, H.: Global change impacts on hydrological processes in Alpine catchments. Water Resources Research, 41(2): 13; 2005
You should take a look at this study if you are interested in:
environmental issue: Climate; Land use; Water resources
region: European Alps
One sentence summary:
The paper investigates the impact of climate change and land-use change on hydrological responses in the Alpine catchments with a focus on analysing differences in the hydrological responses between different Alpine climate zones, between different climate and land-use scenarios as well as differences in the results of several global circulation models; main results include a projected substantial runoff regime shift across the Alps with rising temperature strongly affecting the runoff regimes.
type of study: Impact projection models(s): RHESSys - Regional hydroecological simulation system; HadCM3; CGCM2; CSIRO2; PCM scenario(s): Climate change scenario based on the IPCC SRES scenarios; Land-use change scenario based on the IPCC SRES scenarios
1. Impact of climate and land-use change on the hydrological processes in the Alpine catchments
• For all scenarios, increasing temperatures are projected to have a strong impact on runoff regimes via the impact on snow cover. • Overall, simulated results show a substantial runoff regime shift across the Alps, with specific differences depending on the climatic zone considered.
 "It is likely that glacier retreat will initially enhance summer flow in the rivers of the Alps; however, as glaciers shrink, summer flow is likely to be significantly reduced (Hock et al., 2005), by up to 50% (Zierl and Bugmann, 2005)."
quoted from IPCC AR4 II, p.549-550
Key future impacts and vulnerabilities Water resources
 "Climate change could have a negative impact on thermal power production since the availability of cooling water may be reduced at some locations because of climate-related decreases (Arnell et al., 2005) or seasonal shifts in river runoff (Zierl and Bugmann, 2005)."
quoted from IPCC AR4 II, p.556
Key future impacts and vulnerabilities Energy and transport : Energy
© 2009 ADAM, Adaptation and Mitigation Strategies: Supporting European climate policy