Hydraulic-hydrological calibration of a peri-urban watershed in the SWMM model

Abstract

In urban watersheds mathematical modeling, a very important process is the impact of changes land use on the hydrological cycle of urban centers. Some modeling parameters are difficult to investigate in situ and it is necessary estimate through calibration methods. Considering the calibration importance and complexity, the objective of this study is to represent the physical characteristics of the Arroio Cancela Watershed in SWMM model and calibrate it from precipitation and flow data monitored. It was possible to observe that the calibration and validation were within the range recommended by the literature. Thus, it is considered that the model has the ability to satisfactorily reproduce the events that occur in this watershed.