Abstract
Hydrologic model parameters obtained from regional regression equations are subject to uncertainty. Consequently, hydrologic model outputs based on the stochastic parameters are random. This paper presents a systematic analysis of uncertainty associated with the two parameters, N and K, in Nash's IUH model from different regional regression equations. The uncertainty features associated with N and K are further incorporated to assess the uncertainty of the resulting IUH. Numerical results indicate that uncertainty of N and K from the regional regression equations are too significant to be ignored.
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Yeh, K.C., Yang, J.C. & Tung, Y.K. Regionalization of unit hydrograph Parameters: 2. Uncertainty analysis. Stochastic Hydrol Hydraul 11, 173–192 (1997). https://doi.org/10.1007/BF02427914
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DOI: https://doi.org/10.1007/BF02427914