When Computing a Hillshade, "Azimuth" Refers To

question 14

Multiple Choice

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

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Definitions:

Fish

Aquatic, gill-bearing organisms that lack limbs with digits, comprising a large and diverse group of vertebrates inhabiting both fresh and saltwater environments.

Birds

Warm-blooded, feathered vertebrates that lay eggs and have wings, belonging to the class Aves.

Threatened Species

A species in which the population is small enough for it to be at risk of becoming extinct throughout all or part of its range but not so small that it is in imminent danger of extinction. Compare with endangered species.

Endangered Species

Endangered species are organisms facing a very high risk of extinction in the wild, as classified on the International Union for Conservation of Nature (IUCN) Red List.