%0 Conference Proceedings
%4 sid.inpe.br/marte2/2017/10.27.16.12.38
%2 sid.inpe.br/marte2/2017/10.27.16.12.39
%@isbn 978-85-17-00088-1
%F 59801
%T Uso do modelo SWAT para predição da vazão em sub-bacia hidrográfica do Rio Jequitinhonha/MG
%D 2017
%A Silva, Nathalia Drummond Marques da,
%A Motta, Alline Zagnoli Villela,
%A Christofaro, Cristiano,
%@electronicmailaddress nathalia.florestal@yahoo.com.br
%E Gherardi, Douglas Francisco Marcolino,
%E Aragão, Luiz Eduardo Oliveira e Cruz de,
%B Simpósio Brasileiro de Sensoriamento Remoto, 18 (SBSR)
%C Santos
%8 28-31 maio 2017
%I Instituto Nacional de Pesquisas Espaciais (INPE)
%J São José dos Campos
%P 7017-7024
%S Anais
%1 Instituto Nacional de Pesquisas Espaciais (INPE)
%X Human pressure on the biosphere affects water circulation and availability. The need to simulate the effect of human activities in watersheds has stimulated the use of spatial hydrologic models like SWAT (Soil and Water Assessment Tool). This study aims to simulate the flow response of a Jequitinhonha River watershed (Itamarandiba do Campo River) to climatic, edaphic and soil management variables. The input variables were generated from Digital Elevation Model (SRTM), land use classification (Landsat 8) and regional soil maps. The hydrological model SWAT was calibrated and validated for the watershed using 10 hydrological parameters, considering monthly data flow obtained from 1997 to 2007. Calibration and validation reached, respectively, values of 0.53 and 0.60, for the Nash-Sutcliffe efficiency coefficient (COE), values of 0.69 and 0.64, for the ratio of the root mean square error to the standard deviation of measured data (RSR), and values of -18.6 and -28.5, for the Percent Bias (PBIAS). Most of the coefficients produced satisfactory results according to the evaluation criteria adopted, except for PBIAS in validation stage. There was a significant improvement in quantitative statistics compared to the initial simulation. Despite the limitations of the available input data, estimated values satisfactorily followed the general pattern of the observed flow, demonstrating the applicability of the model in the water resources management of the region.
%9 Hidrologia
%@language pt
%3 59801.pdf