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View Full Version : MODIS: Dust storm in the Bodele Depression


tlr online
12-11-03, 00:36
Streamers of orange and white dust blow across Chad’s Bodele Depression, shown here in this true-color Terra MODIS image form November 5, 2003. As recently as the 1960s, the Bodele Depression was underwater as a part of Lake Chad, shown in the lower left of this image. But increasing evaporation and diversion of the water for agriculture has shrunk Lake Chad significantly. Today, this depression is a major source of atmospheric dust; winds carry the dust up into Europe, the Middle East, and the Western Hemisphere.

Atmospheric dust can often act as “seeds” for clouds – water condenses around the particles to form cloud particles – but in high-enough quantities can also prevent precipitation. Atmospheric dust also influences the planet’s temperature by absorbing and reflecting sunlight.

http://modis.gsfc.nasa.gov/gallery/images/image11102003_md.jpg

Copyright 2003 NASA