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.

Launched by an Ariane 5 G+ from Europe’s spaceport in Kourou, French Guiana, Parasol has embarked on an expected two-year mission, flying in formation with Aqua and Aura (NASA), Calipso (NASA/CNES) and CloudSat (NASA/CSA) as part of the so-called A-Train. These satellites, to be joined later by NASA’s Orbiting Carbon Observatory (OCO) in 2008, will for the first time ever combine a full suite of instruments for observing clouds and aerosols, from passive radiometers to active lidar and radar sounders.

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Hurricane Rita seen by PARASOL Orbit 019070, on the 23rd of September 2005