Watershed Delineation Tool

A Python/ArcPy geospatial analysis tool that automates watershed delineation using a digital elevation model (DEM) and a user-defined pour point.

Features

• Fills sinks in a DEM
• Generates flow direction raster
• Generates flow accumulation raster
• Snaps pour points to highest flow accumulation cells
• Delineates watershed boundaries
• Converts watershed raster to polygon
• Optionally clips additional input layers
• Optionally creates a watershed buffer

Tools Used

• Python
• ArcPy
• ArcGIS Pro
• Spatial Analyst Extension

Project Structure

watershedtool/
├── src/
├── docs/
├── README.md
├── requirements.txt
└── .gitignore