Estudo hidromorfológico de bacia hidrográfica urbana em Goiânia/GO
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2017-08
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Quantifying the consequences of runoff and degree of infiltration in an urban basin allows the assessment of channel drainage patterns, the occurrence of floods and erosion. The objective of this study was to study the hydromorphology of the urban watershed of the Botafogo Stream, aiming to quantify the physical and morphological parameters that interfere in its hydrological behavior. The methodology used in the study was the use of numerical equations, in addition to the raster and vector data generated in the GIS program, favoring the investigation of the parameters of linearity, area, length and hypsometry of the basin, revealing the behavior of the physiography of the river basin and indicating the morphological indices that interfere in its hydrological activity. Floods in the Botafogo Stream have been frequent due to the altimetric gradient (143 m) of the water body that is born at quota 844 and flows at an altitude of 701 m in relation to the level of the sea, indicating a slight slope that contributes to the rapid concentration of rainwater in the Botafogo Stream and its tributaries. The Botafogo River Basin is poorly drained (0.58 km -1) suggesting, therefore, that the occurrence of floods is related to the relief.
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Bacia hidrográfica, Hipsometria, Fisiografia, River basin, Hypsometry, Physiography
Citação
ROMERO, Vanessa; FORMIGA, Klebber Teodomiro Martins; MARCUZZO, Francisco Fernando Noronha. Estudo Hidromorfológico de Bacia Hidrográfica Urbana em Goiânia/GO. Ciência e Natura, [S. l.], v. 39, n. 2, p. 320–340, 2017. DOI: 10.5902/2179460X26411. Disponível em: https://periodicos.ufsm.br/cienciaenatura/article/view/26411. Acesso em: 11 dez. 2024.