THE AEROSOLS OPTICAL PROPERTIES INVESTIGATION DURING THE DUST POLLUTION

Atmospheric optical turbulence has a significant impact on optoelectronic instruments, so the measurement of atmospheric optical turbulence is very important. The evaluation and forecasting of atmospheric optical turbulence can improve the efficiency of photoelectric systems. Long-term observational data in the arid and semi-arid regions of Northwest China show that our research and model improvements are very meaningful.

A new measurement technology of PM2.5 mass concentration profile near ground is addressed using a CCD side-scatter lidar and a PM2.5 detector. The PM2.5 mass concentration profile can be built upon the vertical distribution of the extinction coefficient for aerosol. The PM2.5 is always loading in the planet boundary layer with a complex muti-layer structure. The new method for PM2.5 mass concentration profile is useful for improving our understanding of air quality and atmospheric environment.