Polarization and Anisotropy of Reflectances for Atmospheric Sciences coupled with Observations from a Lidar (PARASOL) is the second microsatellite in the Myriade series developed by CNES. It is
... carrying a wide-field imaging radiometer/polarimeter called POLDER (Polarization and Directionality of the Earth's Reflectances), designed in partnership with the LOA atmospheric optics laboratory in Lille (CNRS-USTL). POLDER is designed to improve our knowledge of the radiative and microphysical properties of clouds and aerosols by measuring the directionality and polarization of light reflected by the Earth-atmosphere system.
[Summary provided by CNES.]