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Saltation of sand In geology , saltation (from Latin saltus 'leap, jump') is a specific type of particle transport by fluids such as wind or water . It occurs when loose materials are removed from a bed and carried by the fluid, before being transported back to the surface.
Sediment Transportation. The suspended load is one of the three layers of the fluvial sediment transportation system. The bed load consists of the larger sediment which is transported by saltation, rolling, and dragging on the riverbed. The suspended load is the middle layer that consists of the smaller sediment that's suspended.
By contrast, saltation, a related sediment transport process, moves grains across the bottom by bouncing or hopping. The actual current carries the sediment load in traction and saltation flows, whereas downslope movement under the force of gravity carries the sediment in gravity flows .
Traction describes the “scooting and rolling” of particles along the bed (Ritter, 2006). In stream load transport, saltation is a bounce-like movement, occurring when large particles are suspended in the stream for a short distance after which they fall to the bed, dislodging particles from the house.
Bed load sediment in the thalweg of Campbell Creek in Alaska.. The term bed load or bedload describes particles in a flowing fluid (usually water) that are transported along the stream bed.
Particles move by rolling, sliding, or saltation (bouncing or jumping of grains) at velocities less than that of the surrounding flow. Rolling is the primary mode of transport in gravel-bed streams, while saltation in which grains hop over the bed in a series of low trajectories is largely restricted to sands and small gravels. [3]
Saltation (geology) – Particle transport by fluids; ... Hjulström curve: the velocities of currents required for erosion, transportation, and deposition ...
Sediment transport is the movement of solid particles (), typically due to a combination of gravity acting on the sediment, and the movement of the fluid in which the sediment is entrained.