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Effective landslide risk management requires knowledge ofthe landslide risks. This paper presents a risk assessment methodology for semiregional scale. The landslide probability is assessed taking into accountexpected climatechange in the case study area the G?ta river valley. Climatechange is expected to result in increased erosion and water fluctuations. Thereare large areas with marine clays, often quick clay, in the area and thelandslide process can be rapid with extensive damages and casualties. Theconsequence methodology includes a wide range of consequences assessed bymonetary valuation. The consequences and the landslide probability are combinedas pairs of values in a risk matrix and the risk is also presented on a map.The map has been used as discussion and decision bases in the municipalities inthe G?ta river valley, in the county administration and on governmental levelto estimate the needs of risk mitigation and to make priorities.

KEYWORDS

Landslide; Risk Assessment; Methodology; Climate Change

Cite this paper

Andersson-Sköld, Y. , Falemo, S. and Tremblay, M. 2014 Development of methodology for quantitative landslide risk assessment—Example Göta river valley. Natural Science, 6, 130-143. doi: 10.4236-ns.2014.63018.





Autor: Yvonne Andersson-Sköld, Stefan Falemo, Marius Tremblay

Fuente: http://www.scirp.org/



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