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PARASOL DT
The PARASOL (Polarization and Anisotropy of Reflectances for Atmospheric Science coupled with Observations from a Lidar) payload consists of a digital camera with a CCD detector array, wide-field telecentric optics and a rotating filter wheel enabling measurements in 9 spectral channels from blue (0.443 µm) through to near-infrared (1.020µm) and in several polarization directions. Polarization measurements are performed at 0.490µm, 0.670µm and 0.865µm. Because it acquires a sequence of images every 20 seconds, the instrument can view ground targets from different angles, +/- 51° along track and +/- 43° across track.
Example result / latest result |
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Monthy AOD(550nm) of the fine aerosol mode (Left: Mar. 2007: Right:Sept. 2007) |
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| Satellite: | PARASOL (CNES) |
| Instrument(s): | POLDER |
| Instrument/algorithm PI: | Didier Tanré, CNRS/USTL |
| Contact details: | didier.tanre[at]univ-lille1.fr |
| Parameter(s): | ocean: AOD (2 modes) and size/ land: AOD(fine) |
| Aerosol algorithm: | LUT approach |
| Cloud screening: | Internal |
| Aerosol model: | 2 modes (Fine and Coarse) / Non-spherical dust particles |
| Retrieval assumptions: | Assumptions on the BPDF of the land surfaces |
| Retrieval limitations: | Coarse mode is not retrieved over land |
| Spatial, temporal coverage: | March 2005-Present/ Global |
| Spatial, temporal resolution: | 5x6km2 / 1600 km / 16 days repeat cycle |
| Operations status: | operational / reprocessing |
| Validation status: | AERONET comparison |
| Quality control: | Fitting errors / Viewing geometrical conditions |
| last algorithm version: | 10.10 (ocean)/09.10(land) |
| last validation: | on going |
