Nagel, D., J. Buffington, and D. Isaak. 2006. Comparison of methods for estimating stream channel gradient using GIS (presentation). The 21st Annual Northwest GIS Users’ Conference and Training, Spokane, WA, September 13-15, 2006.
This presentation describes the ecological importance of stream channel gradient Middle Fork Salmon River Watershed in Idaho and compares three methods (at contour crossings, stream intersections, and equal intervals) for estimating channel gradient from Digital Elevation Models (DEM) and the National Hydrography Dataset (NHD).