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Posts tagged Gulf of Arguin

Cloud Vortices South of Canary Islands

28.2N 16.6W

May 19th, 2009 Category: Clouds

Cloud vortices off Moroccan coast - May 17th, 2009

Cloud vortices off Moroccan coast - May 17th, 2009

A loose cloud vortex can be seen off the coast of Western Sahara and Morocco, to the South of the Canary Islands. There are also several curved areas where vortices could be forming or dissipating.  (Cloud vortices have been observed in this area on several occasions; click here for previous articles).

In the full image, the Gulf of Arguin is visible near the bottom, south of the Ras Nouadhibou Peninsula, which marks the border between Western Sahara (above) and Mauritania (below). The waters of the gulf are colored bright green due to rich phytoplankton growth.

The Richat Structure, Mauritania – April 24th, 2009

April 24th, 2009 Category: Image of the day

Morocco and Mauritania - April 9th, 2009

Morocco and Mauritania - April 9th, 2009

Richat Structure - source: NASA

Richat Structure

The Ras Nouadhibou Peninsula (upper left) marks the border Morocco’s Western Sahara (above) and Mauritania (below). The Gulf of Arguin, lies just south of the peninsula.

Another border, between Mauritania and Senegal, is marked by the Senegal River.

Moving inland from the Atlantic Ocean into Mauritania, an odd, circular feature can be observed (open full image for best view). This is the Richat Structure, a prominent ringed indentation in the Sahara desert near Ouadane.

It has attracted attention since the earliest space missions because it forms a conspicuous bull’s-eye in the otherwise rather featureless expanse of the desert. The structure has a diameter of almost 50 kilometres (30 miles).

Initially interpreted as a meteorite impact structure because of its high degree of circularity, it is now thought to be a symmetrical uplift (circular anticline or dome) that has been laid bare by erosion. Paleozoic quartzites form the resistant beds outlining the structure.

The close-up image is a false-colored topographic reconstruction from satellite photos. The false coloring shows the geological composition and vegetation of the area using the following color scheme: bedrock is brown, sand is yellow or white, vegetation is green, and salty sediments are blue.

Cloud Vortex North of Ras Nouadhibou Peninsula

March 13th, 2009 Category: Clouds

Morocco - March 5th, 2009

Morocco - March 5th, 2009

Ras Nouadhibou is a 40-mile peninsula or headland in the African coast of the Atlantic Ocean by the Tropic of Cancer. The Gulf of Arguin lies south of the peninsula.

This thin stretch of land is divided between Mauritania and Western Sahara. On the western side, lies the Sahrawi town of Lagouira; on the eastern side, less than a mile from the border, lies Mauritania’s Nouadhibou (formerly Port Etienne).

It is internationally known as Cap Blanc in French or Cabo Blanco in Spanish (both meaning “White Cape”).

Towards the bottom, some sands can be seen blowing across Mauritania’s desert and into the Atlantic Ocean.

Off the Moroccan shore, near the top, a cloud vortex is visible above the dark waters of the Atlantic.

Phytoplankton in Gulf of Arguin, Mauritania

January 25th, 2009 Category: Snapshots

Gulf of Arguin, Mauritania - November 29th, 2008

Gulf of Arguin, Mauritania - November 29th, 2008

The Banc d’Arguin National Park (French: Parc National du Banc d’Arguin) lies on the west coast of Mauritania between Nouakchott (South) and Nouadhibou (North, on the peninsula).

This World Heritage Site is a major breeding site for migratory birds. A wide range of species include flamingos, broad-billed sandpipers, pelicans and terns. Much of the breeding is on sand banks including the islands of Tidra, Niroumi, Nair, Kijji and Arguim.

The park lies on the boundary between the Afrotropical and Palaearctic biogeographic realms on a coast of nutrient-rich offshore waters teeming with phytoplankton, visible here as a bright green offshore bloom.

The surrounding waters are some of the richest fishing waters in western Africa and serve as nesting grounds for the entire western region.

The park’s vast expanses of mudflats provide a home for over two million migrant shorebirds from northern Europe, Siberia and Greenland.

The region’s mild climate and absence of human disturbance makes the park one of the most important sites in the world for these species.

source Wikipedia