Gestão de outorgas pelos usuários : como condicionantes melhoram estimativas

Abstract

The knowledge of the water availability in a particular region is extremely important for adequate water resource management. The study of water availability depends on the availability of corresponding data to the hydrological phenomenon. Despite the relevance of the subject, the availability of this data is still deficient, resulting in a difficulty in carrying out historical flow series. At SEMARH (Secretary of the Environment and Water Resources of Alagoas), the application of the Silveira method aims to estimate flows from few data in headwater regions. Adopting this method as a reference, we developed a model capable of making flow estimates, obtaining flow duration curves as a product. In addition, the Silveira method requires 3 measurements to be effective. In this context, we simulated the model using 3, 4 and 5 flow measurements and characterized the quality of the estimate from the assimilation of new data. Furthermore, we evaluated the model performance with an application in the case of the headwater region of the Rio das Carnes farm, located in the municipality of São Sebastião.