InfoSWMM and InfoSWMM SA is a physically based, discrete-time simulation model. It employs principles of conservation of mass, energy, and momentum wherever appropriate. This section briefly describes the methods InfoSWMM and InfoSWMM SA uses to model stormwater runoff quantity … Read the rest
How to use Transects in InfoSWMM and InfoSWMM SA
Transects refer to the geometric data that describe how bottom elevation varies with horizontal distance over the cross section of a natural channel or irregular-shaped conduit. The following figure displays an example of a transect for a natural channel.
Each transect … Read the rest
If you have an InfoSWMM 2D license and you have set up your model with all of the necessary 2D elements and parameters, you can enable the 2D Simulation option. You must also set the 2D simulation options to … Read the rest
Rules for using the NRCS (SCS) Dimensionless Unit Hydrograph Method in InfoSWMM and InfoSWMM SA
A unit hydrograph is defined as the direct runoff hydrograph resulting from a unit depth of excess (effective) rainfall produced by a storm of uniform intensity and specified duration. Unit hydrographs could be natural … Read the rest
Infiltration is the process of rainfall penetrating the ground surface into the soil over the pervious areas of Subcatchments.
InfoSWMM H2OMap SWMM InfoSWMM SA offers three choices for modeling infiltration:
Horton's Equation
This method is based … Read the rest
InfoSWMM and InfoSWMM SA is a comprehensive GIS-centric, highly advanced hydrologic, hydraulic, and water quality simulation model that could be used for the management of urban stormwater and wastewater collection systems. InfoSWMM and InfoSWMM SA represents the … Read the rest
How to Use the Clark Unit Hydrograph Method in InfoSWMM and InfoSWMM SA
Clark’s method derives a unit hydrograph by explicitly representing the processes of translation and attenuation, which are the two critical phenomena in transformation of excess rainfall to runoff hydrograph. Translation refers to the movement, without storage, of … Read the rest
The Scenario Explorer is an essential feature that enables the user to create, edit, modify, run, and compare any number of "what if" modeling scenarios with little extra effort. InfoSWMM H2OMap SWMM InfoSWMM SA 's … Read the rest
The External page on the Inflows Editor dialog is used to specify time series of direct external inflow and pollutant inflows entering a node of the drainage system.
To initiate the External Inflow editor, do … Read the rest
The Groundwater Editor dialog is used to specify the groundwater property of a Subcatchment. It is used to link a Subcatchment to both an aquifer and to a node of the drainage system that … Read the rest