{ "extent": { "spatial": {"bbox": [[ 2.44, 49.41, 6.52, 51.63 ]]}, "temporal": {"interval": [[ "2024-04-01T00:00:00Z", null ]]} }, "stac_version": "1.1.0", "renders": {"fapar": { "assets": ["CropSAR2d_FAPAR"], "rescale": [[ 0, 200 ]], "tilematrixsets": {"EPSG:3857": [ 8, 14 ]}, "colormap_name": "fapar", "aggregation": { "name": "datetime_frequency", "params": {"datetime_frequency_interval": "day"} }, "title": "CropSAR2d_FAPAR", "asset_as_band": true }}, "sci:doi": "10.71570/2a7n-mv46", "keywords": [ "fapar", "cropsar-2d", "sentinel-2", "sentinel-1", "vito", "openeo", "copernicus data space ecosystem", "earth observation", "remote sensing", "vegetation index" ], "description": "The CropSAR-2D Near Real Time collection is the Sentinel-2 data cloud-free with a regularity of five-day intervals.The collection currently offers only FAPAR products.FAPAR corresponds to the fraction of photosynthetically active radiation absorbed by the canopy. The FAPAR value results directly from the radiative transfer model in the canopy which is computed instantaneously. It depends on canopy structure, vegetation element optical properties and illumination conditions. FAPAR is very useful as input to a number of primary productivity models which run at the daily time step. Consequently, the product definition should correspond to the daily integrated FAPAR value that can be approached by computation of the clear sky daily integrated FAPAR values as well as the FAPAR value computed for diffuse conditions. The CropSAR-2D FAPAR product was produced using the CropSAR_px service provided by VITO that uses Sentinel-1 GRD and Sentinel-2 L2A products offered by the Copernicus Data Space Ecosystem. For more information, visit https://marketplace-portal.dataspace.copernicus.eu/catalogue/app-details/80", "sci:citation": "VITO. (2026). CropSAR-2D Near Real Time Fraction Absorbed Photosynthetically Radiation (FAPAR). 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