The African dust and its role in the formation of Atlantic hurricanes

African dust over the Mediterranean, 8:40 GMT, June 8, 2013 © Sputnik "Terra» | NASA

June 16, 2013. Because of persisting over Europe long deep area of low pressure throughout May in North Africa turned out to be very dusty. African dust lifted by frequent storms in the Sahara Desert, disseminated both in Europe and in the Atlantic.

This spring, we have regularly reported on the "feathers" African dust over the Mediterranean Sea and the South over Europe. But now, due to the beginning of the season of tropical storms in the Atlantic, it's time to talk about the important role that African dust plays in their formation.

African dust over the Atlantic, at 15:00 GMT, June 1, 2013 © The satellite "Aqua» | NASA

The event, recorded by NASA satellites 1 and 2 June 2013, demonstrates the dust loading and the extent of its spread. The fine particles of the Sahara, extending in the trade-wind flow, are ideal condensation nuclei on which atmospheric moisture settles and there is an integration of water droplets. This enhances the formation of clouds and, under favorable conditions in the atmosphere can result in a tropical storm. Not by chance the Cape Verde Islands (upper right part of the image), located in 570 km to the west of the African coast, known as the birthplace of the fourth part of all Atlantic tropical storms.

African dust over the Atlantic, 12:40 GMT, June 2, 2013 © Sputnik "Terra» | NASA

Light fractions Saharan dust can be raised to a height of 3 km and in just 5-7 days to cross the Atlantic. Scientists have found a direct relationship between the dust storms in the western part of the Sahara and the consequential increase in the intensity of rainfall in the Caribbean.

Source: News Gismeteo

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