Saltation, suspension, and surface creep are three types of soil movement during wind erosion. Saltation involves particles bouncing along the surface, suspension carries fine particles up into the atmosphere, and surface creep describes the rolling of larger soil particles along the ground.
Saltation is the movement of particles of sediment in a way that makes them bounce or leap along the surface due to wind action. It is characterized by particles of sand size or greater bouncing near the soil surface. This mode of transport is a dominant process in wind erosion, especially over sandy surfaces.
Suspension involves fine particles (diameter less than 0.1 mm) being carried up and away from the surface by strong winds or impact with other particles. These particles can travel long distances suspended in the atmosphere before returning to the ground.
Surface creep refers to the movement of large soil particles (diameter 0.5-1 mm) that are too heavy to be lifted. These particles roll and slide along the soil surface, sometimes being pushed by saltating grains.
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