| Popis: |
Based on the polarization charge density and Rayleigh scattering theory, the impact of wind and sand electrostatic field on the optical properties of sand is discussed through numerical calculation and simulation. The results show that in considering the effects of sand electrostatic field, the sand scattering efficiency to electromagnetic waves firstly increases and then decreases with the charge distribution angle increasing, and the absorption efficiency to electromagnetic waves keeps a constant, but its magnitude is much larger than that of not considering the environmental electric field. In addition, the sandstorm attenuation to electromagnetic waves increases with the increase of particle concentration and humidity. Those results illustrate that it is necessary to consider the function of sandstorm electrostatic field in the remote sensing of sandstorm. ©, 2015, Chinese Optical Society. All right reserved. |
