Effect of the preferred orientation of non-spherical ice crystals in high- level clouds on the depolarization ratio of lidar signals

摘要

Results of experiments on polarization laser sensing of high-level clouds performed at the high-altitude polarization lidar developed at National Research Tomsk State University are discussed. It is shown that orientation of crystalline ice particles in a cloud leads to different values of the measured depolarization ratio for the same cloud, which depends significantly on the azimuthal orientation of the polarization plane of sensing radiation.