Uncertainty of runoff and sediment modeling was examined through quantifying variation in the model outputs simulated using parameter sets sampled from the posterior distributions. Uncertainty is defined as a range and confidence interval (CI) of the output hydrograph time series (Table 2). CIs of the simulated runoff and sediment load were determined at a significance level of 0.05. The estimated uncertainty in the simulated runoff and sediment load hydrographs of the watershed is presented in Figure 5, and model output uncertainty measures are summarized in Table 2.