Brief
Created workflow to generate streamlines for the Navarro River Watershed using only a digital elevation model.
The creation of this map required chaining together many different tools to get streamlines from a digital terrain model. First, I generated a flow direction raster, which has pixels indicating the direction water would flow off of the surface. Then, I used that raster to generate a flow accumulation raster, whose values represent how many cells flow into each cell. Then, I ran a series of tools that extract the highest areas of flow accumulation, which are effectively the streams, and turned those first into a raster stream network, then a set of streamlines.
The tools I used include Spatial Analyst: Flow Direction, Spatial Analyst: Flow Accumulation, Spatial Analyst: Raster Calculator, Spatial Analyst: Set Null, Spatial Analyst: Stream Link, Spatial Analyst: Stream Order, Spatial Analyst: Stream to Feature, Symbology.