Terrain Aspect
What does that mean? Aspect is the compass direction of a line perpendicular to the slope face. It has utility for solar power, geomorphic stability, soil development, vegetation cover, etc. This can be learned from a grid or a TIN. As shown below for the example DEM.
The topography with 20 ft contours applied.
Here’s aspect with the legend that ESRI uses. But I don’t like it. Too many colors
Here’s one I created with a different color ramp that is continuous.
