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Meteorologists use color enhanced imagery as an aid in satellite interpretation. The colors enable them to easily and quickly see features which are of special interest. Usually they look for high clouds or areas with a large amount of water vapor.
In an infrared (IR) image cold clouds are high clouds, so the colors typically highlight the colder regions. In a water vapor image, white areas indicate moisture and dark areas indicate little or no moisture, so the colors typically highlight areas with large amounts of moisture.

Infrared
East Conus West Conus
EC IR Color Enhanced Image EC IR Color Enhanced Image WC IR Color Enhanced Image WC IR Color Enhanced Image
EC IR Color Enhanced Image EC IR Color Enhanced Image WC IR Color Enhanced Image WC IR Color Enhanced Image
Water Vapor
East Conus West Conus
EC WV Color Enhanced Image EC WV Color Enhanced Image WC WV Color Enhanced Image WC WV Color Enhanced Image
EC WV Color Enhanced Image EC WV Color Enhanced Image WC WV Color Enhanced Image WC WV Color Enhanced Image

Animations of colorized images are available at this site: www.ssd.noaa.gov/goes/east/eaus.html