Aspect Maps

Aspect is the downhill direction.  Vegetation is frequently different on south and north facing slopes, due to differences in insolation and snow melt/retention and soil development, and ski resorts typically use ground differently depending on the aspect.

In geology, aspect is the dip direction.

Aspect map created with Display parameter for a DEM set to aspect with 8 cardinal directions quadrant colorsafter Brewer and Marlow, 1993 Aspect map created by the Create derivative grid option. 

This allows computations with the resulting grid, but has the same color display options.

Aspect/slope merge DEM color merge,  Eight aspects, three slope categories, and gray for nearly flat.

You can use aspect in Terrain categories.

Last revision 11/26/2021