Dust from Africa travels to Brazil

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Typically, every year between June and August dust travels across the Atlantic. This example shows dust reaching Brazil, during the FIFA World Cup.

Date & Time
25 June 2014 10:45 UTC
Dust RGB, Natural Colour RGB

Download Full Resolution Dust RGB image, Meteosat-10, 25 June 10:45 UTC, showing the dust reaching Brazil.
Download the animation, Dust RGB, 20 June 00:00 UTC–25 June 18:00 UTC (MPG, 23 MB).

Million of tons of dust are transported from the Sahara across the Atlantic every summer. Over West Africa dust is lifted either through outflow boundaries of thunderstorm clusters and frontal systems penetrating deep into the Saharan belt, or through turbulence created by low-level easterly winds between a subtropical high and and low pressure in the Intertropical Convergence Zone (ITZC).

The images below show the dust cloud over the Atlantic on 24 June at 15:00 UTC, just before it reached South America. The Dust RGB shows the dust in medium (not dark) magenta colour, which indicates that the dust is travelling at mid levels (not low levels). The dust can also be seen in the Natural Colours RGB (brownish colour), at least the thicker parts of the dust cloud. The thinner parts are better seen in the Dust RGB product.

Image comparison
Dust RGB image from 24 June Natural Colour RGB image from 24 June
Comparison of Dust and Natural Colour RGB images on 24 June.

See also:

Animation of dust crossing the Atlantic, Meteosat-10 Dust RGB, 22 June 01:00 UTC–26 June 23:00 UTC (MPG, 23 MB)
Sahara flies transatlantic (YouTube)
Major Transport of Desert Dust
Summer dust outbreaks over the Atlantic
Dust-laden Saharan air over the Atlantic

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