Abstract:À minha mãe Simone, que com toda sua força e dedicação me mostrou que a educação é a chave da mudança. Ao meu padrasto Adriano, que com toda sua paciência, respeito e honestidade me ajudou a ser uma pessoa melhor. Aos meus irmãos João Pedro e Ana Clara, amores da minha vida, que entendem minha ausência e são o motivo pelo qual busco ser melhor a cada dia. Aos meus avós Irany, Gentil (in memorian) e Carolina (in memorian), que com humildade e muito amor me proporcionaram os maiores ensinamentos. As minhas tias,… Show more
“…Along with this factor, the different types of water use in the basins lead to conflicts for the right to use and uncertainties regarding the risks of flooding. Therefore, for the maintenance of life and environmental preservation, more effective actions are needed in the management of water resources (ANA, 2019a;Charles, 2020).…”
The Brazilian Cerrado biome is the largest and richest tropical savanna in the world and is among the 25 biodiversity hotspots identified worldwide. However, the lack of adequate hydrological monitoring in this region has led to problems in the management of water resources. In order to provide tools for the adequate management of water resources in the Brazilian Cerrado biome region, this paper develops the regionalization of maximum, mean and minimum streamflows in the Tocantins River Basin (287,405.5 km2), fully located in the Brazilian Cerrado biome. The streamflow records of 32 gauging stations in the Tocantins River Basin are examined using the Mann-Kendall test and the hydrological homogeneity non-parametric index-flood method. One homogeneous region was identified for the estimate of the streamflows Qltm (long-term mean streamflow), Q90% (streamflow with 90% of exceeding time), Q95% (streamflow with 95% of exceeding time) and Q7,10 (minimum annual streamflow over 7 days and return period of 10 years). Two homogeneous regions were identified for maximum annual streamflow estimation and the Generalized Extreme Value distribution is found to describe the distribution of maximus events appropriately within the both regions. Regional models were developed for each streamflow of each region and evaluated by cross-validation. These models can be used for the estimation of maximum, mean and minimum streamflows in ungauged basins within the Tocantins River Basin within the area boundaries identified. Therefore, the results provided in this paper are valuable tools for practicing water-resource managers in the Brazilian Cerrado biome.
Keywords: l-moments, statistical hydrology, water use rights concessions.
“…Along with this factor, the different types of water use in the basins lead to conflicts for the right to use and uncertainties regarding the risks of flooding. Therefore, for the maintenance of life and environmental preservation, more effective actions are needed in the management of water resources (ANA, 2019a;Charles, 2020).…”
The Brazilian Cerrado biome is the largest and richest tropical savanna in the world and is among the 25 biodiversity hotspots identified worldwide. However, the lack of adequate hydrological monitoring in this region has led to problems in the management of water resources. In order to provide tools for the adequate management of water resources in the Brazilian Cerrado biome region, this paper develops the regionalization of maximum, mean and minimum streamflows in the Tocantins River Basin (287,405.5 km2), fully located in the Brazilian Cerrado biome. The streamflow records of 32 gauging stations in the Tocantins River Basin are examined using the Mann-Kendall test and the hydrological homogeneity non-parametric index-flood method. One homogeneous region was identified for the estimate of the streamflows Qltm (long-term mean streamflow), Q90% (streamflow with 90% of exceeding time), Q95% (streamflow with 95% of exceeding time) and Q7,10 (minimum annual streamflow over 7 days and return period of 10 years). Two homogeneous regions were identified for maximum annual streamflow estimation and the Generalized Extreme Value distribution is found to describe the distribution of maximus events appropriately within the both regions. Regional models were developed for each streamflow of each region and evaluated by cross-validation. These models can be used for the estimation of maximum, mean and minimum streamflows in ungauged basins within the Tocantins River Basin within the area boundaries identified. Therefore, the results provided in this paper are valuable tools for practicing water-resource managers in the Brazilian Cerrado biome.
Keywords: l-moments, statistical hydrology, water use rights concessions.
“…Desses processos, a precipitação desempenha um papel fundamental na regulação da vazão dos cursos d'água, como destacado porCharles (2020). No entanto, como mencionado por Souza, Souza e Cardoso (2017), a vazão dos rios não é influenciada apenas pela precipitação, mas também por outros fatores, como o tipo de uso e cobertura do solo, e dessa forma as variações na precipitação média nem sempre resultarão em influências diretamente proporcionais na vazão média dos rios.…”
Modelagem de redes neurais artificiais MLP para previsão de vazões na bacia do rio Miranda afluente do Pantanal / Christian Pascal Silva Bouix-versão revisada de acordo com a resolução CoPGr 6018 de 2011.--Piracicaba, 2024. 67 p. Dissertação (Mestrado) --USP / Escola Superior de Agricultura "Luiz de Queiroz". 1. Hidrologia 2. Bacias hidrográficas 3. Inteligência artificial 4. Redes neurais artificiais 5. Modelagem I. Título Para a Sylvia e Tiana, as mulheres da minha vida, Dedico
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