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Assessing Watershed Conditions Using Remote Sensing and Geographic Information Systems

Overview This project demonstrates one way geospatial technologies can be used to map features of the stream channel and adjacent vegetation that influences the stream (i.e., riparian zone) and support watershed restoration. Effective applications include an automated program for calculating stream order, sinuosity, and gradient from 10-meter digital elevations models (DEMs); determining relative water depth to detect deep and shallow portions of the stream (i.e., pools and riffles); and providing a means for manual vegetation interpretation. Automated vegetation classification was also tested but proved unsuccessful.