This thesis study focuses on the evaluation of cloud base height from a pair of space-based remote sensing systems. The first satellite, CloudSat, is a 94-GHz cloud profiling radar (CPR) utilizing a wavelength capable of penetrating thick hydrometeor layers. The second satellite, the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite, is an active lidar designed to detect optically thin hydrometeor layers. The 2BGEOPROF- Lidar product combines data from ...