Author(s): Eduardo A. Varas
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Keywords: No Keywords
Abstract: Statistical scaling is proposed as a convenient procedure to perform a regional flood frecuency analysis for design purposes in cases of scarce flow observations. The scaling approach is used to obtain moments of peak flows at points of interests and these moments are used to estimate the parameters of the probability distribution models that represent flood flows. This alternative approach has the advantage that no separate procedure is needed to obtain an estimate of the index flood at each location and that if simple scaling is applicable, parameters can be obtained analyzing the relationship between first moments in the region. The method was applied in the Maule River basin in central Chile and results show a good agreement with frequency curves obtained using observed flows and conventional regional procedures.
Year: 2005