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Ecohydrological modeling and environmental flow regime in the Formoso River, Minas Gerais State, Brazil Anais da ABC (AABC)
GUEDES,HUGO A. S.; SILVA,DEMETRIUS D.; DERGAM,JORGE A.; ELESBON,ABRAHÃO A. A..
ABSTRACT This paper aimed at determining the environmental flow regime in a 1 km stretch of the Formoso River, MG, using River2D model. To carry out the ecohydrological modeling, the following information was used: bathymetry, physical and hydraulic features, and the Habitat Suitability Index for species of the Hypostomus auroguttatus. In the River2D, the Weighted Usable Areas were determined from the average long-term streamflows with percentage from 10% to 100%. Those streamflows were simulated for the later construction of optimization matrices that maximize the habitat area throughout the year. For H. auroguttatus Juvenile, higher values of Weighted Usable Area were associated with the percentage of 60% and 70% of the average long-term streamflows in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ecohydrology; Hydrodynamic modeling; River2D; Water resources; WUA.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000602429
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ONE- AND TWO-DIMENSIONAL ECOHYDRAULIC MODELING OF FORMOSO RIVER (MG) REA
Oliveira,Iara De C. E; Silva,Demetrius D. Da; Guedes,Hugo A. S.; Dergam,Jorge A.; Ribeiro,Celso B. De M..
ABSTRACT The objective of this study was to compare ecohydrological simulations from a one-dimensional model (PHABSIM - Physical Habitat Simulation System) and a two-dimensional model (River2D) in order to indicate a reliable tool that could be used to determine public policies for the sustainable management of the water resources of the FormosoRiver basin(MG). The results from the calibration of hydraulic variables, namely, water depth and velocity, as well as habitat predictions for three fish species of the river were compared. The results showed that River 2D was best suited to simulate ecohydrological features for the studied river stretch. Although PHABSIM presented a better fit of the hydraulic variables at the calibration process, the use of only...
Tipo: Info:eu-repo/semantics/article Palavras-chave: PHABSIM; River2D; Weighted usable area; Water resources.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601050
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