The purpose of this project was to provide tools for local government to develop a set of maps that summarize the relative “health” and “vulnerability” of the network of streamsides that fall under their jurisdiction.
Streamside health Streams ( 30 m buffer ) Land cover
Streams buffered 90 m & used to clip land cover, soils, and elevation
Calculate runoff using land cover and soils
Calculate slope from elevation
Slope * runoff
Caveat: Given the scale of resolution of the data sources, the maps can only provide general patterns of streamside condition, not information on sites of erosion, presence of invasive plants, or other more localized problems. Ground-truthing is critical for a detailed accurate assessment of streamside condition.
Model results validation John Mickelson, Geospatial Contractor at Ecological Services “ the CS data and methodology clearly performs well, giving a good approximation of general (upper end) Stream Health patterns.” “ The benefit of utilizing automated geospatial scripts cannot be understated. Not only do they make the results more easily checked, since they are repeatable and avoid operator error, but they save enormous time resources when approaching projects of this sort.”