抄録
In dealing with the prediction of atmospheric dust concentration by means of mathematical models, a knowledge of the boundary condition—the dust concentration in a thin layer near the ground—is needed. This concentration must be related to the erosion rate.
The erosion process consists of three phases: detachment, transportation, and deposition. In this paper, we formulate a simple erosion equation, on the basis of reasonable assumptions about the three phases of the erosion process. Solutions of simplified versions of this equation yield reasonable results. In practice, the nonlinear from of this equation would have to be solved interactively with the atmospheric model to yield ground concentration as a function of time and space.
