研究期間:10108~10207;This current project is a continuation of last year’s work on the applications of 3D lidar system and measurements technologies. 3D lidar system has a capability of carrying 6 filters for different detection techniques such as DIAL (ozone), Raman, and polarization measurements with an advantage of versatile and multiple specie measurements. In the coming year, we also describe in this project about the research on cirrus clouds and tropopause studies by using satellite data such as CALIPSO and MLS 。