Statistical methods in determination of reference flow

Isabel Kaufmann de Almeida, Teodorico Alves Sobrinho, Bruno Bernardo dos Santos, Jorge Luiz Steffen, Cláudia Gonçalves Vianna Bacchi


In this study we aimed to provide the foundation studies of water availability in the Miranda riverbasin, Mato Grosso do Sul, Brazil. Therefore, this study aimed to analyze the application of Normal,Log-Normal, Weibull, Gumbel and Log-Gumbel theoretical probability methods to data of minimumflows for seven consecutive days of the basin. To verify the adherence to the estimated probabilitiesof observed frequencies, we applied the Kolmogorov-Smirnov test. The results show that the Log-Gumbel distribution show greater accuracy in the data representation of the series and reach thebest fit value of Q7,10.


ecological flow, environmental sustainability, water resource

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