DETERMINAÇÃO DE PROCESSOS HIDROSSEDIMENTOLÓGICOS EM UMA BACIA HIDROGRÁFICA POUCO MONITORADA DA AMAZÔNIA OCIDENTAL - RIO MACHADINHO-RO

Código

PAP067

Autores

Vinicius Alexandre Sikora de Souza, OTTO CORREA ROTUNNO FILHO

Tema

MEDIÇÃO, MODELAGEM, TÉCNICAS E TECNOLOGIAS NO CONTEXTO DA HIDROSSEDIMENTOLOGIA

Resumo

The present work evaluates the sensitivity and performance of the SWAT model for its application in the Machadinho river basin -RO to analyze the corresponding fluvial dynamics due to the scarcityof hydrological and meteorological measurements. A database was constructed composed of climate information, topography, use and classification of the soil from the use of orbital platforms, simulating, then, the period from 1995 to 2000 due to the availability of in situ data from a fluviometric station which covers the area of study. Afterwards, the model was calibrated and validated for the periods 1996-1998 and 1999-2000, respectively, with flow data made available by ANA, using as objective functions the coefficient of determination (r²) and the Nash-Sutcliffe coefficient (COE). The model presented a good performance in the estimation of flow production, since for the present study, a COE value of 0.8055 and r² of 0.8077 was obtained in the calibration, while, in the validation, COE values were obtained equal to 0.544 and r2equal to 0.722.