Estimativa da produção de sedimentos utilizando a curva-chave de sedimentos
Quantification of sediment yield is important in determining the impacts of erosion processes on the watersheds. One way to determine their values is through the construction of the sediment-transport curve. The objective of this work is to calculate the sediment yield and to analyze the time variation in a hydrosedimentological monitoring station by designing and adjusting the sediment-transport curve, testing the deviations for curve fitting with a single section and divided into two sections. The 87380000 station is located in the municipality of Campo Bom (RS), operated by CPRM. The sediment-transport curve was built in a single section and divided into two sections. In addition, the Excel solver was used to set the curve to the data. Comparison of the relative standard deviation calculated for each curve allowed a comparison of the results. The sediment-transport curve. that best represented the data set was the one constructed with the split in two sections adjusted by the solver.