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Title: Streamflow regionalization for the Mortes River Basin upstream from the Funil Hydropower Plant, MG
Other Titles: Regionalização de vazões para a bacia hidrográfica do Rio das Mortes a montante da Usina Hidrelétrica do Funil, MG
Keywords: Probability density functions
Statistical Hydrology
Water resource management
Funções densidade de probabilidade
Gestão dos recursos hídricos
Hidrologia estatística
Issue Date: Jun-2020
Publisher: Instituto de Pesquisas Ambientais em Bacias Hidrográficas
Citation: AMORIM, J. da S. et al. Streamflow regionalization for the Mortes River Basin upstream from the Funil Hydropower Plant, MG. Revista Ambiente & Água, Taubaté, v. 15, n. 3, 2020. DOI: 10.4136/ambi-agua.2495.
Abstract: Maximum and minimum streamflow are fundamental for water resource management, especially for water rights. However, lack of monitoring and scarce streamflow data limit such studies. Streamflow regionalization is a useful tool to overcome these limitations. The study developed models for regionalization of the maximum and minimum reference streamflows for the Mortes River Basin (MRB) (Water Resources Planning and Management Unit - GD2), Southern Minas Gerais State. The study used long-term streamflow historical series provided by the Brazilian National Water Agency (ANA). Previous exploratory analysis was performed, and it was observed that the streamflow series are stationary according to the Mann-Kendall test. The estimation of the streamflow for different return periods (RP) was performed by fitting Probability Density Functions (PDFs) that were tested by the Anderson-Darling (AD) test. The Generalized Extreme Values (GEV) and Wakeby were the most appropriate PDFs for maximum and minimum streamflows, respectively. The streamflow models were fitted using a power regression procedure, considering the drainage area of the watersheds as inputs. The fittings reached the coefficient of determination (R2) greater than 0.90. Thus, the streamflow regionalization models demonstrated good performance and are a potential tool to be used for water resource management in the studied basin.
Appears in Collections:DEG - Artigos publicados em periódicos
DRH - Artigos publicados em periódicos

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