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Dust and Kármán Vortices by Canary Islands – June 23rd, 2013

21.0N 19.1W

June 23rd, 2013 Category: Clouds, Dust Storms, Image of the day VIIRSSuomi-NPP

West Africa – June 22nd, 2013

Named after the engineer and fluid dynamicist Theodore von Kármán, in fluid dynamics, a Kármán vortex street is a repeating pattern of swirling vortices that are created when the flow of a fluid separates unsteadily as it moves around blunt bodies. Here, this phenomenon can be seen in the upper left quadrant, as spiralled cloud patterns southwest of the Canary Islands. In the lower left quadrant, dust can be seen blowing off the coasts of Mauritania and Senegal.

Kármán Vortex Streets Trailing Off Cape Verde and Canary Islands – June 20th, 2013

21.8N 18.5W

June 20th, 2013 Category: Clouds, Image of the day VIIRSSuomi-NPP

West Africa – June 19th, 2013

West of Western Sahara, Mauritania and Senegal, off the coast of West Africa, is an atmospheric phenomenon known as Kármán Vortex Streets. These parallel rows of oppositely spinning vortices, caused by the unsteady separation of flow of a fluid around blunt bodies, can be seen trailing off the Canary Islands (above) and off the Cape Verde islands (below). Some dust can also be seen spreading off the coast of Mauritania.

Dust Over Wad Ad-Dahabnota Peninsula and Near Canary Islands – December 30th, 2012

23.6N 15.9W

December 30th, 2012 Category: Dust Storms, Image of the day

Canary Islands – December 28th, 2012

Dust blows off the coast of Western Sahara and towards the northwest, over the Atlantic Ocean. Visible through the dust is the Wad Ad-Dahabnota Peninsula, also known as the Villa Cisneros Peninsula while the region was under Spanish colonial rule. The Canary Islands can be seen near the top edge of the image, although the dust does not reach them.

Dust from Bay of Arguin to Canary Islands, Off Coast of West Africa – August 19th, 2012

22.2N 17.1W

August 19th, 2012 Category: Dust Storms, Image of the day

Mauritania and Western Sahara – August 18th, 2012

A thick plume of dust blows off the coast of Western Africa, from the Bay of Arguin in Mauritania (below), northward parallel to Western Sahara, reaching the Canary Islands (top edge). The dust completely obscures the waters of the Bay of Arguin, usually bright green from phytoplankton growth.

Mount Teide Volcano on Tenerife, Canary Islands – January 20th, 2012

28.2N 16.6W

January 20th, 2012 Category: Image of the day, Volcanoes

Tenerife - January 9th, 2012

This orthorectified image shows Tenerife, the largest and most populous island of the seven Canary Islands. It is a rugged and volcanic island sculpted by successive eruptions throughout its history. Tenerife is the largest island of the Canary Islands archipelago, with a surface area of 2,034.38 km2 (785 sq mi) and the longest coastline amounting to 342 km (213 mi).

In addition, the highest point, the volcano Mount Teide, with an elevation of 3,718 m (12,198 ft) above sea level is the highest point in all of Spain. It is the third highest volcano in the world measured from its base on the ocean floor, after Mauna Loa and Mauna Kea located in Hawaii.