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Archive for Dust Storms

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.

Arabian Peninsula Still Veiled by Airborne Dust

21.9N 45.9E

June 17th, 2013 Category: Dust Storms MODISAqua

Arabian Peninsula – June 17th, 2013

Dust continues to blow about the Arabian Peninsula. Here, it is most concentrated over the southern part of the Red Sea (lower left), Yemen, Oman and the Gulf of Aden (lower right). Some plumes can also been seen blowing southward over the Persian Gulf (upper right).

Plumes of Dust Off Coast of Namib Desert, Namibia

23S 15.1E

June 17th, 2013 Category: Dust Storms MODISTerra

Namibia – June 17th, 2013

Plumes of dust blow southwestwardward off the coast of Namibia, by both the rocky, tan northern portion and the sandy, orange southern portion of the Namib Desert. In the full image, similar wispy plumes of dust can be seen much further southward along the coast, for much of the length of the sandy desert.

Dust Blowing Over Sarygamysh Lake, Uzbekistan

43.2N 57.5E

June 16th, 2013 Category: Dust Storms MODISAqua

Uzbekistan – June 16th, 2013

Significant desertification, characterized by degradation of the land and natural resources to the point that they can no longer be used, has been occurring in the region around the Aral Sea. A decline in the groundwater level in the deltas of the Amu Darya and Syr Darya rivers has contributed to the piling up of salt at the surface, resulting in the death of plants. The death of vegetation, in turn, has resulted in intensified winds, causing more dust storms in the area. Here, dust can be seen blowing across Sarygamysh Lake, in Uzbekistan, southwest of the Aral Sea.

Plume of Dust Blowing Across Iraq

30.0N 48.5E

June 16th, 2013 Category: Climate Change, Dust Storms MODISAqua

Iraq – June 16th, 2013

A plume of dust blows southeastward across Iraq, by the Tigris-Euphrates River Valley, across the mouth of the Shatt al-Arab and over the northern end of the Persian Gulf. Iraq is considered one of the region’s most vulnerable countries to climate change and it faces a unique set of environmental challenges.

Rising environmental degradation and increasing frequency and intensity of extreme weather events, especially sand and dust storms, take an enormous toll on socio-economic life and human development across the region.

In Iraq, the Ministry of Environment recorded 122 dust-storms and 283 dusty days and sources suggest that within the next ten years, Iraq could witness 300 dust-storms per year. These projections underscore the urgent need for a concerted regional effort to address the phenomenon today (click here for more information).

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