{"ob_id":44566,"computationComponent":[{"ob_id":44567,"uuid":"b2860073d21346c597c51a8da6b0005b","title":"Computation for ESA Sea Ice Climate Change Initiative (Sea_Ice_cci): Retrieval of sea-ice thickness from Sentinel-3B radar altimetry data","abstract":"The method used to extract sea-ice thickness from radar altimetry data is based on the\r\npioneering work of Peacock and Laxon, 2004; Laxon et al., 2003 for the ERS-2 mission. The\r\nmethod involves separating the radar echoes returning from the ice floes from those\r\nreturning from the sea surface in the leads between the floes. This step of a surface-type\r\nclassification is crucial and allows for a separate determination of the ice floe and\r\nsea-surface heights. The freeboard that is the elevation of the ice upper side (or ice/snow\r\ninterface) above the sea level can then be computed by deducting the interpolated\r\nsea-surface height at the floe location from the height of the floe. Sea-ice thickness can then\r\nbe calculated from the sea-ice freeboard with the additional information of the snow load.","keywords":"","inputDescription":null,"outputDescription":null,"softwareReference":null,"identifier_set":[]}],"acquisitionComponent":[{"ob_id":44568,"independentInstrument":[],"instrumentplatformpair_set":[{"ob_id":14310,"platform":"https://catalogue.ceda.ac.uk/api/v2/platforms/26990/?format=json","instrument":"https://catalogue.ceda.ac.uk/api/v2/instruments/19016/?format=json","relatedTo":{"ob_id":44568,"uuid":"87e5162890034ae18a11a7394fa039d2","short_code":"acq"}}]}],"identifier_set":[],"responsiblepartyinfo_set":["https://catalogue.ceda.ac.uk/api/v2/rpis/213235/?format=json"]}