Determinação de vazão em cursos d’água através de diferentes metodologias

Abstract

The aims of this work are to measure the discharge of a watercourse located in the city of Alegrete, state of Rio Grande do Sul. The measurement site belongs to the Arroio Caverá hydrographic basin, wich has a drainage área corresponding to1.450km² and flows out to the Ibirapuitã sub basin, with na área of 5.965km². From the measurements taken out by the float metod, OTT C31 current meter and acoustic method with the OTT Qliner 2 equipment,acomparative analysis was carried out in order to verify the method with the highest reliability of results. The results were correlated with the data presented by the fluviometric station in the Ibirapuitã sub-basin (code76750000fromANA), on the same measurement day. Thus, the área proportion method was validated, which performs the correspondence of the flows in areas that do not have data with those that present them, through fluviometric stations or historical records.