The size distribution function for aerosol particles, generated on the underlying surface by sand-wind flow, is reconstructed from the measured fluctuations in the arid aerosol microstructure in a deserted area. An estimate for the threshold wind velocity is obtained for the case when submicron and coarse-dispersed aerosol is carried out from the underlying surface.
arid aerosol, fluctuations of aerosol concentration, generation of coarse aerosol