A new advanced scanning multi-wavelength polarization Raman lidar system has been designed and implemented. It is
three transmitted wavelengths and eight receiver channels. Nd:YAG laser emits simultaneously at 355, 532, and 1064 nm.
The elastically backscattered signals, again with polarization discrimination at 355 and 532 nm, the nitrogen Raman
signals at 387 and 607 nm, and the water-vapor Raman signal at 407 nm are detected. Vertical profiles of the three
backscatter coefficients at 355, 532, and 1064 nm, of the two extinction coefficients at 355 and 532 nm, are determined
both by Klett-Fernald and Raman method. The microphysical particle parameters are retrieved from backscatter
coefficients at three wavelengths and extinction coefficients at two wavelengths by regularization. We selected
experimental data of typical weather from the measurement areas both Bejing and Dunhuang in different weather, e.g.
cloudy, clear, haze. The experiment results were derive by inversion, and they mainly include temporal evolution of the
two extinction coefficients at 355 and 532 nm, the three backscatter coefficients at 355, 532, and 1064 nm, effective
radius, PM2.5, and PM10. Our aim is to study the aerosol properties directly at source in order to analyze the
transportation path for pollution and dust aerosol by the temporal evolution of PM2.5 and PM10.
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