Outflow

Creation Mode: Draw Line on Terrain, Assign to River Line

Purpose and Effect: Use the Outflow action to manually define outflows, which define the boundary conditions for your simulation model. Outflows specify where water should exit the domain, such as a river flowing out of the simulation domain. Typically, outflows are defined using a water level time series or a rating curve, which represents the water level–discharge relationship. For more information, see the Outflows section in the Rivers and Streams model description.

For detailed guidance on setting up river flood models, refer to the River Modeling task-based workflow.