Raman LIDAR detection of cloud base

Advantages introduced by Raman lidar systems for cloud base determination d uring precipitating periods are explored using two case studies of light ra in and virga conditions. A combination of the Raman lidar derived profiles of water vapor mixing ratio and aerosol scattering ratio, together with the Raman scattered signals from liquid drops, can minimize or even eliminate some of the problems associated with cloud boundary detection using elastic backscatter lidars.