Study of the scanning lidar on the atmospheric detection

- The scanning polarization lidar for aerosol and cloud detection has been developed.
- The ability to detect aerosol in lower height is improved by the scanning lidar.
- Horizontal scanning will helpful to track and monitor aerosol plumes in urban.
- The spatial variation of PBL height is observed by the scanning lidar.
- The scanning lidar provides the multi-dimensional views of aerosol and cloud.

The scanning polarization Mie lidar (SPML) system has been developed and is described. The lidar system has two detection channels to receive the parallel and perpendicular polarization components at the laser wavelength of 532 nm, which indicates the nonsphericity of aerosol and cloud particles. It can take the horizontal, vertical and conical scans of the atmosphere with the elevation and azimuth motors. This paper discusses the current capability of the SPML lidar and its results. The observation shows that the SPML lidar can provide the multi-dimensional views of the atmosphere which is impossible to achieve with other ground-based vertically pointing lidars. It is helpful to track and monitor aerosol plumes in urban area, to determinate the planetary boundary layer height and to enhance the measurement of atmosphere in the lower height where the geometrical form factor of lidar system affects.