The video and image below illustrate how dust is emitted
into the atmosphere by the wind. Typically, particles are
either entrained directly by the wind or entrained after
larger particles begin to creep and bounce on the surface.
This process is known as saltation. Saltation can fracture
or disconglomerate soil particles into smaller, suspendable
particles which then become entrained as atmospheric dust.
(Macromedia
Flash required to view video.)
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