Introduction
GeoSWMM Tools is a set of dynamic tools that enable the user to calculate several input properties for a SWMM model and generate flood maps. These properties are associated with the physical and hydrologic characteristics of the subcatchments and conduits in a model. These tools efficiently prepare and manage these data, which can then be assigned to the respective SWMM object property fields during model building. The current version of the GeoSWMM also integrates the 2D modeling approach and respective pre-processing tools to prepare the 2D network. A separate chapter has been included in this version, elaborating the GeoSWMM 2D modeling tools. Here in this chapter, all the tools that are integrated with GeoSWMM to process and prepare input data and help to visualize the model results with its inherent capabilities. It is to note that as tools are now integrated with GeoSWMM, users must open a GeoSWMM Project first to use these tools.
Table 6.1 : Summary of the GeoSWMM Tools and their Applications
Pre-processing Tools | Object Category | Calculated Properties |
|---|---|---|
Watershed Delineation Tool | Subcatchment | Subcatchment shape and area, and subcatchment outlet position |
-Watershed Delineation Tool | Conduit | Conduit (open channel) shape and length |
ID Mapper Tool | Conduit | Conduit Inlet and Outlet Nodes Name |
Network Analysis Tool | Conduit, Junction | Network connectivity check |
Slope Calculation Tool | Subcatchment | Average surface slope in percentage |
Imperviousness Calculation Tool | Subcatchment | Percentage of impervious area |
Width Calculation Tool | Subcatchment | Characteristic width of overland flow-path |
Land Use/Land Cover Properties Tool | Land Use | Land Use reclassification |
Land Use/Land Cover Properties Tool | Subcatchment | Manning's roughness coefficient for impervious and pervious area; Depth of depression storage for impervious and pervious area |
Conduit Roughness Calculation Tool | Conduit | Manning's roughness coefficient |
Post-processing Tools | Object Category | Functionalities |
|---|---|---|
Extract Elevation Data | Conduit, Junction | Extract elevation data and shows Ground Level at the Profile Plot View. |
Flood Mapping Tool | Inundation Depth and Flood Boundary Layer | Generates Flood Boundary Layer based on GeoSWMM 1D simulation. |