{"ob_id":31785,"uuid":"b9c80907bb37487fa1744f3c86f3e792","title":"NCEO LTSS: Global Ocean Lagrangian Trajectories, v1.0,  1998-2018 (OLTraj)","abstract":"The National Centre for Earth Observation (NCEO) Long Term Science Single Centre (LTSS) Global Ocean Lagrangian Trajectories  (OLTraj) provides 30-day forward and backward Lagrangian trajectories based on surface velocities from an ocean reanalysis. Each trajectory represents the path that a water mass would move along starting at a given pixel and a given day. OLTraj can be thus used to implement analyses of oceanic data in a Lagrangian framework. The purpose of OLTraj is to allow non-specialists to conduct Lagrangian analyses of surface ocean data.\r\n\r\nThe dataset has global coverage and spans 1998-2018 with a daily temporal resolution. The trajectories were generated starting from zonal and meridional model velocity fields that were integrated using the LAMTA package (6-hour time step)  as described in Nencioli et al., 2018. Please see the documentation section below for further information.","keywords":"Global, Ocean Lagrangian Trajectories, LAMTA, zonal, meridional model","publicationState":"citable","dataPublishedTime":"2020-08-21T16:05:50","doiPublishedTime":"2020-08-21T16:06:41.886123","updateFrequency":"","status":"completed","result_field":{"ob_id":"https://catalogue.ceda.ac.uk/api/v2/observations/31789/?format=json","dataPath":"/neodc/oltraj/data/v1.0/","oldDataPath":[],"storageLocation":"internal","storageStatus":"online","volume":1730621594393,"numberOfFiles":7635,"fileFormat":"NetCDF V4.0"},"timePeriod":"https://catalogue.ceda.ac.uk/api/v2/times/8690/?format=json","geographicExtent":"https://catalogue.ceda.ac.uk/api/v2/bboxes/2687/?format=json","nonGeographicFlag":false,"phenomena":["https://catalogue.ceda.ac.uk/api/v2/phenomona/4385/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/18405/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/18408/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/30129/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/30130/?format=json"],"dataLineage":"Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA).","removedDataTime":null,"removedDataReason":"","language":"English","identifier_set":["https://catalogue.ceda.ac.uk/api/v2/identifiers/10745/?format=json"],"projects":["https://catalogue.ceda.ac.uk/api/v2/projects/5002/?format=json"],"observationcollection_set":["https://catalogue.ceda.ac.uk/api/v2/observationcollections/30127/?format=json"],"responsiblepartyinfo_set":["https://catalogue.ceda.ac.uk/api/v2/rpis/140245/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/140243/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/140244/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/140246/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/140247/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/140248/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/140242/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/140257/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/140249/?format=json"],"procedureAcquisition":null,"procedureCompositeProcess":null,"procedureComputation":"https://catalogue.ceda.ac.uk/api/v2/computations/31790/?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"}],"discoveryKeywords":[{"ob_id":1138,"name":"NDGO0003"}]}