About This Application Manual

This manual has been prepared to serve as one of the practical application guides for modelers; provided that they have already acquired the basics of hydrology, storm water management modeling and on how GeoSWMM’s hydraulic elements and flow routing methods are used to model a surface drainage system. Especially they must know how to develop a GeoSWMM model using GIS data, to set simulation options and prepare model input data in ArcGIS Pro, and to run simulation and interpret model results under different scenarios. Readers are recommended to keep GeoSWMM User's Manual aside in case they face difficulties during model building and simulation process. The User's Manual elaborately discusses working with a GeoSWMM model and its different settings.

Tutorial 01 showed how to construct a hydrologic model of an urban catchment and compared storm water runoff under both pre-developed and post-developed scenarios without considering hydraulic routing. In this tutorial, a conveyance network is added to the post- development model built in Tutorial 01. Furthermore, the conveyance network’s dimensions are calculated considering three different 2-hour synthetic storm events with return periods of 2-years, 10-years, and 100-years. For simplicity, open channels with circular cross sections will be used to convey this flow.

The next chapter describes the worked-out tutorial with illustrations.