What makes the EDNA watershed database different from any other watershed database?
A. The EDNA database is hydrologically derived from the National Elevation Dataset. It is not a digitized database, but rather a database derived from an algorithm that determines flow direction and flow accumulation. Among the many capabilities of the EDNA database is the capability to estimate power potential based on path gradient and other variables for every synthetic stream segment or reach within the National database. This hydrologic methodology was not feasible nationally prior to the development of EDNA.
