{"ob_id":29957,"computationComponent":[{"ob_id":29955,"uuid":"c62c65712f674aeeaddffe5dc05d1ead","title":"GlobBiomass retrieval algorithm used in the production of the Biomass CCI global dataset of forest above ground biomass for the year 2017.","abstract":"The GlobBiomass retrieval algorithm is used to derive estimates of forest above-ground biomass (AGB) from satellite data for the year 2017 as part of the Biomass CCI project.\r\n\r\nFirst,  per-pixel estimates of growing stock volume (GSV, unit: m3/ha) were obtained from spaceborne SAR images acquired in 2017 (ALOS-2 PALSAR-2, Sentinel-1) with the BIOMASAR algorithm, adapted specifically to ALOS-2 PALSAR-2 and Sentinel-1 data. Individual per-pixel GSV estimates were then combined with a set of merging rules to form the final per-pixel estimate of GSV. The retrieval was supported by LiDAR (ICESAT) data and auxiliary datasets . AGB was then obtained from GSV with a set of Biomass Expansion and Conversion Factors (BCEF) following approaches to extend on ground estimates of wood density and stem-to-total biomass expansion factors to obtain a global raster dataset.\r\n\r\nSee the Algorithm Theoretical Basis Document for details on the EO datasets, the biomass retrieval algorithms and the estimation of the BCEF (see http://cci.esa.int/biomass)","keywords":"","inputDescription":null,"outputDescription":null,"softwareReference":null,"identifier_set":[]}],"acquisitionComponent":[{"ob_id":29956,"independentInstrument":[],"instrumentplatformpair_set":[{"ob_id":12287,"platform":"https://catalogue.ceda.ac.uk/api/v2/platforms/12319/?format=json","instrument":"https://catalogue.ceda.ac.uk/api/v2/instruments/12313/?format=json","relatedTo":{"ob_id":29956,"uuid":"c8b2caa776da4515833a1ba6aa3ddc0e","short_code":"acq"}},{"ob_id":12288,"platform":"https://catalogue.ceda.ac.uk/api/v2/platforms/29959/?format=json","instrument":"https://catalogue.ceda.ac.uk/api/v2/instruments/29958/?format=json","relatedTo":{"ob_id":29956,"uuid":"c8b2caa776da4515833a1ba6aa3ddc0e","short_code":"acq"}}]}],"identifier_set":[],"responsiblepartyinfo_set":["https://catalogue.ceda.ac.uk/api/v2/rpis/129431/?format=json"]}