West Africa - May 22nd, 2012
Strong winds blowing from the northeast to the southeast push dust off the west coast of Africa. Here, the dust blows over the Bay of Arguin, on the coast of Mauritania. It does not spread northward to the Canary Islands, visible at the top right, although it does reach southward to the border between Mauritania and Senegal.
West Africa - May 21st, 2012
A dense cloud of dust blows over Mauritania (above) and Senegal (below), and off the coast of West Africa. Partially visible through the airborne dust are the Bay of Arguin (above), in Mauritania, and the Senegal River, a greenish line marking the Mauritania-Senegal border (center).
West Africa - May 17th, 2012
Dust blows over Mauritania (upper right) and Senegal (lower right), off the coast of West Africa, and over the Cape Verde archipelago (center left). The dust appears most dense in the upper right quadrant, just west of the Bay of Arguin, whose green waters are significantly obscured by the airborne particles. Also visible through the dust is the Senegal River, a green line near the center right, marking the Mauritania-Senegal border. Visible through the veil of dust in the lower left quadrant are von Kármán vortex streets, created by the movement of air over the Cape Verde islands.
West Africa - April 28th, 2012
A thick cloud of dust can be seen blowing off the coast of West Africa, by the Mauritania-Senegal border. The dust is situated just north of the Cap Vert Peninsula, on which the Senegalese capital of Dakar is located. To the south, sediments from the Geba River, in Guinea Bissau, can be seen entering the Atlantic Ocean.
West Africa - April 12th, 2012
Dust blows off the coast of West Africa, over Senegal, the Gambia and Guinea Bissau. The dust partially veils the Senegal River, visible as a greenish line by the coast near the image center, and the Geba River, whose wide mouth can be observed near the bottom of the image.
The dust is thicker over the coast between these two rivers, obscuring other important watercourses such as the Casamance and Gambia Rivers. Some dust can be seen by the Senegal-Mauritania border (marked by the Senegal River), but in general the airborne particles were not carried much farther north, allowing the green waters of the Bay of Arguin to be observed clearly.
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