{"ob_id":39793,"uuid":"eade27004395466aaa006135e1b2ad1a","title":"ESA Sea Ice Climate Change Initiative (Sea_Ice_cci): High(er) Resolution Sea Ice Concentration Climate Data Record Version 3 (SSM/I and SSMIS)","abstract":"This climate data record of sea ice concentration (SIC) is obtained using passive microwave satellite data from the Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager Sounder (SSMIS) over the polar regions (Arctic and Antarctic). The processing chain features: 1) dynamic tuning of tie-points and algorithms, 2) correction of atmospheric noise using a Radiative Transfer Model, 3) computation of per-pixel uncertainties, 4) an optimal hybrid sea ice concentration algorithm, and 5) pan-sharpening of the SIC fields using the near-90 GHz imagery channels. This dataset was generated by the ESA Climate Change Initiative (CCI+) Sea Ice Phase 1 project. This dataset is an enhanced-resolution version of the EUMETSAT Ocean and Sea Ice Satellite Application Facility Global Sea Ice Concentration Climate Data Record (OSI SAF OSI-450-a CDR) over the period 1991-2020.","keywords":"Sea Ice, ESA, CCI, Arctic, Antarctic","publicationState":"citable","dataPublishedTime":"2023-05-11T15:21:06","doiPublishedTime":"2023-05-17T10:35:51","updateFrequency":"notPlanned","status":"completed","result_field":{"ob_id":"https://catalogue.ceda.ac.uk/api/v2/observations/40003/?format=json","dataPath":"/neodc/esacci/sea_ice/data/sea_ice_concentration/L4/ssmi_ssmis/12.5km/v3.0/","oldDataPath":[],"storageLocation":"internal","storageStatus":"online","volume":83566854605,"numberOfFiles":21809,"fileFormat":"The data are in NetCDF format."},"timePeriod":"https://catalogue.ceda.ac.uk/api/v2/times/11084/?format=json","geographicExtent":"https://catalogue.ceda.ac.uk/api/v2/bboxes/529/?format=json","nonGeographicFlag":false,"phenomena":["https://catalogue.ceda.ac.uk/api/v2/phenomona/6023/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/13253/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/53130/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/53131/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/66288/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/66289/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/66290/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/66291/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/66292/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/66293/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/66294/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/66295/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/66296/?format=json"],"dataLineage":"This dataset is an enhanced-resolution version of the EUMETSAT Ocean and Sea Ice Satellite Application Facility Global Sea Ice Concentration Climate Data Record (OSI SAF OSI-450-a CDR) over the period 1991-2020. It uses satellite data from US satellite missions SSM/I and SSMIS prepared by the EUMETSAT Climate Monitoring SAF and ECMWF/C3S ERA5 data.","removedDataTime":null,"removedDataReason":"","language":"English","identifier_set":["https://catalogue.ceda.ac.uk/api/v2/identifiers/12476/?format=json","https://catalogue.ceda.ac.uk/api/v2/identifiers/12512/?format=json"],"projects":["https://catalogue.ceda.ac.uk/api/v2/projects/14368/?format=json"],"observationcollection_set":["https://catalogue.ceda.ac.uk/api/v2/observationcollections/14367/?format=json"],"responsiblepartyinfo_set":["https://catalogue.ceda.ac.uk/api/v2/rpis/193827/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/193828/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/193829/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/193822/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/193824/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/193826/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/194552/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/193825/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/195192/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/194553/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/194554/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/194555/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/194556/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/194557/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/194558/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/194559/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/194560/?format=json"],"procedureAcquisition":null,"procedureCompositeProcess":"https://catalogue.ceda.ac.uk/api/v2/composites/40002/?format=json","procedureComputation":null,"permissions":[{"ob_id":"https://catalogue.ceda.ac.uk/api/v2/observations/2573/?format=json","useLimitation":null,"accessConstraints":null,"accessCategory":"public","accessRoles":null,"label":"public: None group","licenceURL":"https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_seaice_terms_and_conditions.pdf","licenceClassifications":"any"}],"discoveryKeywords":[{"ob_id":1140,"name":"ESACCI"}]}