2.72. Hydrology: Watershed

RoadEng

^Softree

Index

Hydrology: Watershed

This tool computes independent flow catchment areas of the TIN model. A catchment area (watershed or drainage basin) is defined as an area of land where precipitation collects and drains off into a common outlet, such as into a river, bay.

Parameters

Cell size

See the main hydrology tools page.

Depression fill depth

See the main hydrology tools page.

Minimum watershed area

Any generated watersheds with an area smaller than this value will be merged with the nearest watershed.

Allow flow to outside

See the main hydrology tools page.

Remove existing features

See the main hydrology tools page.