Input

Select Surface Grid

Select a Grid file to use for the analysis. Use the Ground Surface tool to create a grid model of the terrain. Select a grid that correlates with the desired accuracy of the output. Grid models that exceed 10 million points will slow down computation and display time.

Elevate Objects (optional)

Select objects to elevate in the grid model. Only closed polygon objects exceeding the size given under Settings will be included. All grid points inside a valid polygon will be elevated.

Run

Generates the first part of the Watershed Model by calculating Fillsink and Flow Accumulation values. The output will display an Elevation Map and highlight cells that have been manipulated with Fillsink calculations.