FIGURE 4.10: An intense African dust storm sent a massive dust plume northwestward over the Atlantic Ocean on March 2, 2003. In this true-color scene, acquired by MODIS aboard NASA's Terra satellite, the thick dust plume (light brown) can be seen blowing westward and then routed northward by strong southerly winds. The plume extends more than 1,000 miles (1,600 km), covering a vast swath of ocean extending from the Cape Verde Islands (lower left), off the coast of Senegal, to the Canary Islands (top center), off the coast of Morocco.

SOURCE: Image courtesy of Jacques Descloitres, MODIS Rapid Response team, NASA Goddard Space Flight Center; http://visibleearth.nasa.gov/view_rec.php?id=5619.