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Local Weather
Oberpfaffenhofen

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
Monthy AOD(550nm) of the fine aerosol mode (Left: Mar. 2007: Right:Sept. 2007)

 

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