GRASP is a highly accurate aerosol retrieval algorithm that processes properties of aerosol- and land-surface-reflectance. It infers nearly 50 aerosol and surface parameters including particle size distribution, the spectral index of refraction, the degree of sphericity and absorption. The algorithm is designed for the enhanced characterization of aerosol properties from spectral, multiangular polarimetric remote sensing observations. GRASP works under different conditions, including bright surfaces such as deserts, where the reflectance overwhelms the signal of aerosols. GRASP is highly versatile and allows input from a wide variety of satellite and surface measurements.
New release of POLDER processing, this time using "models" approach. It is recommend to use it for AOD products because of no bias at low value (AOD<0.2).
Credit: CNES/GRASP/LOA/Catalysts/ICARE
https://t.co/7XTCgYgPfN
Good news! The PARASOL archive was reprocessed again thanks to the collaboration of @CNES, @CNRS, LOA, ICARE and @GraspSas. New products are now available at: https://t.co/7XTCgYgPfN
GRASP (Generalized Retrieval of Aerosol and Surface Properties) is the first unified algorithm to be developed for characterizing atmospheric properties gathered from a variety of remote sensing observations
(Dubovik, O. et al., 2014, GRASP: a versatile algorithm for characterizing the atmosphere, SPIE Newsroom. DOI: 10.1117/2.1201408.005558, doi: http://spie.org/x109993.xml)
What are the sources of aerosols and what effects do they have?
