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Saharan dust. Satellite image of the Sahara, taken by NASA. Saharan dust (also African dust, yellow dust, yellow sand, yellow wind or Sahara dust storms) is an aeolian mineral dust from the Sahara, the largest hot desert in the world. The desert spans just over 9 million square kilometers, from the Atlantic Ocean to the Red Sea, from the ...
Satellite photo of a Saharan dust cloud (2000) over the Eastern Atlantic Ocean.. The Sahara is the major source on Earth of mineral dust (60-200 million tons per year). [citation needed] Saharan dust can be lifted by convection over hot desert areas, and can thus reach very high altitudes; from there it can be transported worldwide by winds, covering distances of thousands of kilometers.
e. A dust storm, also called a sandstorm, is a meteorological phenomenon common in arid and semi-arid regions. [1] Dust storms arise when a gust front or other strong wind blows loose sand and dirt from a dry surface. Fine particles are transported by saltation and suspension, a process that moves soil from one place and deposits it in another.
Calima (Saharan sand) Calima, photo by a satellite. Calima or Kalima is a term used to describe a meteorological phenomenon that occurs when fine sand and dust particles from the Sahara are lifted into the atmosphere and transported by prevailing winds. It usually happens in the summer and lasts 3-5 days. [1]
Expansive dust clouds arise from the sun-baked Sahara each year, making the 5,000-mile journey across the Atlantic Ocean to the southern United States. While these dust plumes tend to stay intact ...
A new plume of Saharan dust is approaching Florida. "It looks like there is a wave that recently pushed off Africa making its way across the Atlantic," said Zach Law, meteorologist with the ...
The aerosolization of bacteria in dust contributes heavily to the transport of bacterial pathogens. A well-known case of disease outbreak by bioaerosol was the meningococcal meningitis outbreak in sub-Saharan Africa, which was linked to dust storms during dry seasons.
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