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Grasp Earth Environmental Software
9 software items found
Manufactured by:AIRPHOTON / GRASP Earth. based inLezennes, FRANCE
Grasp algorithm provides the possibility state-of-the-art synergetic retrievals inverting simultaneously sun/sky radiometer and lidar ground-based observations. Specifically, the following of these synergetic retrievals can be ...
Manufactured by:AIRPHOTON / GRASP Earth. based inLezennes, FRANCE
GRASP algorithm has been applied to the entire archive of the French Space Agency’s POLDER-3/PARASOL (~ 9 years) and POLDER-1 and -2 (~ 1,5 years) instruments, obtaining a wide variety of aerosol and surface characteristics, including Aerosol Optical Depth of extinction (AOD) and absorption (AAOD), Single Scattering Albedo (SSA), Angstrom Exponent (AE), Surface Albedo, NDVI vegetation ...
Manufactured by:AIRPHOTON / GRASP Earth. based inLezennes, FRANCE
In the framework of ESA “Synergetic retrieval from Ground-based and Satellites measurements: new possibilities for surface characterization and validation” (GROSAT) project, a simultaneous synergistic retrieval of aerosol and surface properties approach (GRASP/GROSAT approach) is developed using combined ground-based AERONET and satellite measurements. In such retrieval the ...
Manufactured by:AIRPHOTON / GRASP Earth. based inLezennes, FRANCE
CAWA-2 project intends to use the heritage of the CAWA project as well as the recent advancements realized within the GRASP-Open software package to establish and extend the concept for generating synergy MERIS+AATSR ...
Manufactured by:AIRPHOTON / GRASP Earth. based inLezennes, FRANCE
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 ...
Manufactured by:AIRPHOTON / GRASP Earth. based inLezennes, FRANCE
Within the framework of projects supported by ESA, GRASP algorithm has been optimized and applied to the data of MERIS instrument. Two important results have been obtained from those ...
Manufactured by:AIRPHOTON / GRASP Earth. based inLezennes, FRANCE
Spheroid package allows fast, fairly accurate, and flexible modelling of single scattering properties by polydisperse randomly oriented spheroids with different size and shape distributions. It includes a software and kernels data base. The details of the scientific concept are described in the paper by Dubovik et al. (2006). The software tool is also, at present, used in GRASP inversion ...
Manufactured by:AIRPHOTON / GRASP Earth. based inLezennes, FRANCE
In the framework of ESA S5p+Innovation AOD/BRDF project, the GRASP algorithm is adapted to the development of a product of spectral surface BRDF and aerosol information from (and for) the TROPOMI instrument. S5p/TROPOMI GRASP aerosol and surface products contain direct retrieved aerosol and surface parameters as well as derived aerosol optical properties (spectral AOD, AODF, AODC, SSA ...
Manufactured by:AIRPHOTON / GRASP Earth. based inLezennes, FRANCE
In the framework of EUMETSAT funded projects to support Copernicus Programme, the GRASP algorithm has been adapted and applied to the inversion of Sentinel-3A/OLCI measurements. One year (June 2018 to May 2019) V1.0 aerosol and surface products are derived from the OLCI measurements. OLCI/GRASP retrieval generates both aerosol and surface products simultaneously in the fully consistent ...