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Posts tagged Morocco

Dust From Western Sahara to Mauritania

23.6N 15.9W

January 14th, 2013 Category: Climate Change, Dust Storms

West Africa – January 7th, 2013

Sahara Desert dust blows due west off the coast of West Africa. It is thickest from Western Sahara’s Dakhla Peninsula to below the Bay of Arguin, in Mauritania. The dust has not spread northwards into Morocco or over the Canary Islands (top). However, winds can carry such clouds of dust across the Atlantic Ocean, affecting the Caribbean, Gulf of Mexico and southern and eastern USA.

The presence of high concentrations of dust for such long periods of time may have a negative impact on human health. Also, if increased aridity caused large increases in dust transport to the ocean, there could be major consequences that transcend the direct impact on marine organisms. Changes in climate would also affect the amounts and the types of microorganisms associated with dust.

Dust Blowing Off Western Sahara Coast

23.6N 15.9W

December 31st, 2012 Category: Climate Change, Dust Storms

Mauritania – December 28th, 2012

Dust blows off the coast of Western Sahara and over the Atlantic Ocean. It appears thickest in the upper left corner, beyond the Wad Ad-Dahabnota Peninsula (also known as the Villa Cisneros Peninsula). Research has shown that dust storms are increasing  in the Sahara Desert and that in parts of North Africa, annual dust production has increased tenfold in the last 50 years.

Since dust storms transport large amounts of material for long distances, their increasing frequency could have serious consequences for the environment. Scientists say the deposition of dust could affect climate change, disease transmission and air pollution. One concern is that as dust deposits increase, levels of carbon dioxide in the atmosphere could change, directly affecting temperatures and rainfall.

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.

Snow on Peaks of the High Atlas, Morocco

30.9N 6.8W

December 6th, 2012 Category: Mountains

Morocco – December 3rd, 2012

The High Atlas is a section of the Atlas Mountains in central Morocco. It rises in the west at the Atlantic coast and stretches in an eastern direction to the Moroccan-Algerian border. Here, its tall peaks are capped with snow.

At the Atlantic and to the southwest the range drops abruptly and makes an impressive transition to the coast and the Anti-Atlas range. To the north, in the direction of Marrakech, the range descends less abruptly. On the heights of Ouarzazate the massif is cut through by the Draa valley which opens southward. Here, water runs in some places, forming clear basins.

Dust South of Canary Islands

26.3N 16.8W

September 11th, 2012 Category: Dust Storms

Mauritania – August 26th, 2012

Dust from the Sahara Desert sweeps off the western coast of Africa, mainly along the shoreline of Western Sahara. The dust blows mostly over the Atlantic Ocean towards the southwest, although some reaches near the Canary Islands (above) and the Bay of Arguin (below).

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