Digital Terrain Analysis 5

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.