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Water Sci Technol. 2006;53(1):41-9.

Application of uncertainty and sensitivity analysis in river basin management.

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Water Engineering and Management, Faculty of Engineering, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.


Considering uncertainty in the decision-making process in river basin management is important because uncertainty is regarded as one of the main obstacles to sound decision-making. In case of high uncertainty, the risks of making a wrong decision could be quite high, which may have severe consequences. This paper applies a screening sensitivity analysis method, the Morris method, to investigate the propagation of uncertainty from factors in a flood damage model into the model outputs and explores the importance of factors based on the sensitivity analysis. Uncertainty reduction in the most influential factors identified by the Morris method is proposed as a means to reduce the uncertainty in model outputs. In this way the risks of making a wrong decision could be reduced. The results in this paper show that the Morris method is an efficient approach to help reduce the uncertainty in model outputs.

[Indexed for MEDLINE]

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