{"ob_id":30285,"uuid":"f742c505c935467ebb4cf89a611a4436","title":"GOCCP, DARDAR and PM-L2 cloud-top-phase product ensemble (GDP): Combination of instant cloud phase retrievals of A-Train lidar, radar, radiometer and polarimeter.","abstract":"This dataset contains a collocation of three different A-Train cloud phase products on a 2x30 grid (latxlon): The GCM-Oriented Cloud Calipso Product (GOCCP v3.0), the liDAR-raDAR (DARDAR-MASK v2.0) product, and the Polarization & Anisotropy of Reflectances for Atmospheric Sciences coupled with Observations from a Lidar (PARASOL) + Aqua/MODIS combination (PM-L2) product.\r\n\r\nTo better understand the differences in cloud glaciation around the globe, liquid and ice cloud tops around the globe were counted, as observed from four different space-borne instruments (lidar, radar, radiometer and polarimeter) during four years. The top pixels of each product were selected and binned into 3 K temperature intervals. With this data, an algorithm was applied to determine the most probable thermodynamic phase at cloud top based on the different cloud-phase products on a 2x30 grid (latxlon). The \"GDP2\" ensemble was produced using the mode between the three different binary classifications (ice/liquid), provided that all three products are available at each timestep. The \"GDP3\" ensemble is a subselection of the GDP2 ensemble, containing only timesteps where all three products agree. The \"GP\"(GOCCP and PM-L2), \"DP\"(DARDAR and PM-L2) and \"GD\"(GOCCP and DARDAR) ensembles contain only timesteps where two products agree.","keywords":"cloud, phase, top, GOCCP, DARDAR, PM-L2","publicationState":"published","dataPublishedTime":"2020-05-19T08:32:12","doiPublishedTime":null,"updateFrequency":"notPlanned","status":"completed","result_field":{"ob_id":"https://catalogue.ceda.ac.uk/api/v2/observations/30286/?format=json","dataPath":"/badc/deposited2020/cloud-top-phase/data/","oldDataPath":[],"storageLocation":"internal","storageStatus":"online","volume":1255751945,"numberOfFiles":1245,"fileFormat":"Data are netCDF formatted."},"timePeriod":"https://catalogue.ceda.ac.uk/api/v2/times/8243/?format=json","geographicExtent":"https://catalogue.ceda.ac.uk/api/v2/bboxes/2622/?format=json","nonGeographicFlag":false,"phenomena":["https://catalogue.ceda.ac.uk/api/v2/phenomona/50559/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/50561/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/62501/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/70689/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/83080/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/83081/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/83082/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/83083/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/83084/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/83085/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/83086/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/83087/?format=json"],"dataLineage":"Data were gathered, quality controlled, and processed for archiving by the scientist before uploading to the Centre for Environmental Data Analysis (CEDA) for long term archiving.","removedDataTime":null,"removedDataReason":"","language":"English","identifier_set":[],"projects":["https://catalogue.ceda.ac.uk/api/v2/projects/30304/?format=json"],"observationcollection_set":[],"responsiblepartyinfo_set":["https://catalogue.ceda.ac.uk/api/v2/rpis/130878/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/130879/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/130880/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/130881/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/130882/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/130883/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/130885/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/130884/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/168912/?format=json"],"procedureAcquisition":null,"procedureCompositeProcess":null,"procedureComputation":"https://catalogue.ceda.ac.uk/api/v2/computations/30288/?format=json","permissions":[{"ob_id":"https://catalogue.ceda.ac.uk/api/v2/observations/2526/?format=json","useLimitation":null,"accessConstraints":null,"accessCategory":"public","accessRoles":null,"label":"public: None group","licenceURL":"http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/","licenceClassifications":"any, attribution required"}],"discoveryKeywords":[{"ob_id":1138,"name":"NDGO0003"}]}