The stream-flow regionalization is made in locations where the hydrologic information is not available, however the determination of the physical characteristics to each place of interest considerably limits the application of the results of a conventional study of the stream-flow regionalization. One of the solutions for this problem is the automation of the process using a hidrologically consistent digital elevation model (HCDEM). The main objective of this paper was the regionalization of the mean, maximum and minimum stream-flow in South Paraíba River using a HCDEM. The duration curve also was regionalized. The digital elevation model was shown hidrologically consistent making possible the automation of the process to estimate the physical characteristics. Four hidrologically homogeneous areas were identified for this studied area and the regression equations were obtained. The drainage area and the length of the main river were the most important variables to represent the regionalysed functions.
geographic information systems; watershed; water resources
