When computing a hillshade, "azimuth" refers to:
A) The position of the light source measured between 0 degrees and 90 degrees
B) The height of the light source above the terrain
C) The position of the light source measured in 0 degrees to 360 degrees in relation to the DEM
D) The direction the shadows generated from the light source, measured between 0 degrees and 360 degrees

Question

Quizplus · Accepted Answer

Azimuth in the context of computing a hillshade refers to the angle or direction of the light source relative to the digital elevation model (DEM), measured in degrees from 0 to 360. This determines the direction from which the light appears to be shining on the terrain, affecting the appearance of shadows and highlights in the hillshade result.

When Computing a Hillshade, "Azimuth" Refers To