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Wind Erosion:
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The Prediction of Horizontal Soil Fluxes During Wind Erosion Events

J. M. Hopwood


A mathematical model of wind erosion processes was used to investigate the relationship between horizontal mass fluxes of eroded material on and friction velocity. The results show the simulated fluxes to be almost proportional to a power of the friction velocity, with the power being greater(near 3) for the heavier of the two hypothetical soils used in the model runs. The deviations from a power law were explained by a transition by some particles from a 'heavy' (saltating) to a 'light' (suspended) state as the friction velocity increased. A consequence of this effect is that the rate of change of horizontal flux with respect to friction velocity tends to decrease as friction velocity increases.