DEDICAtE, aims to the development of a dual-channel depolarization lidar technique for the derivation of CALIPSO/ADM-Aeolus/EarthCARE-related conversion factors. CALIPSO is capable of retrieving linear particle depolarization ratio at 532 nm in a global scale, providing this well- calibrated product since 2006. Future ESA missions EarthCARE and ADM-Aeolus are based on the employment of the High Spectral Resolution polarization-sensitive lidar technique at 355 nm. Dual-wavelength polarization observations are needed for relating long-term observations of dust particles of CALIOP at 532 nm with ATLID at 355 nm.