{"ob_id":26047,"uuid":"c0c7998800414e46b6823dc75751bb4c","title":"Envelope field of Northern hemispheric upper tropospheric (300 hPa) quasi-stationary waves (June 1979 to August 2015)","abstract":"This dataset comprises 12 hourly data of the envelope field of Northern hemispheric upper tropospheric (300 hPa) quasi-stationary waves calculated between1979-06-01 and 2015-08-31.  The data were derived as part of the NERC funded ODYSEA project (Ocean Dynamics as Driver of Seasonal to Decadal European Atmospheric variability).\r\n\r\nThe envelope field in this dataset is a phase-independent measure of the wave amplitude and is derived from the meridional wind at 300 hPa of the ERA-Interim reanalysis data. To remove the faster transient signals a 15-day lowpass filter was applied to the meridional wind and then subtracted from a daily climatology.  The envelope field allows for the identification of a slowly evolving stationary or slowly moving wave packet.\r\n\r\nFull details of the method are described in the methodology statement that can be found in the docs section.","keywords":"quasi-stationary waves, wave packet, NE/M006107/1","publicationState":"citable","dataPublishedTime":"2018-04-20T07:56:19","doiPublishedTime":null,"updateFrequency":"","status":"completed","result_field":{"ob_id":"https://catalogue.ceda.ac.uk/api/v2/observations/26045/?format=json","dataPath":"/badc/deposited2018/odysea/","oldDataPath":[],"storageLocation":"internal","storageStatus":"online","volume":827302534,"numberOfFiles":2,"fileFormat":"The data are provided in a single NetCDF file. "},"timePeriod":"https://catalogue.ceda.ac.uk/api/v2/times/7033/?format=json","geographicExtent":"https://catalogue.ceda.ac.uk/api/v2/bboxes/741/?format=json","nonGeographicFlag":false,"phenomena":["https://catalogue.ceda.ac.uk/api/v2/phenomona/51981/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/59154/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/59155/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/70812/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/70813/?format=json"],"dataLineage":"The data were produced as part of the NERC project Ocean Dynamics as Driver of Seasonal to Decadal European Atmospheric variability (ODYSEA; NE/M006107/1) and passed to the Centre for Environmental Data Analysis (CEDA) for archival and distribution.","removedDataTime":null,"removedDataReason":"","language":"English","identifier_set":["https://catalogue.ceda.ac.uk/api/v2/identifiers/9554/?format=json"],"projects":["https://catalogue.ceda.ac.uk/api/v2/projects/26048/?format=json"],"observationcollection_set":["https://catalogue.ceda.ac.uk/api/v2/observationcollections/26049/?format=json"],"responsiblepartyinfo_set":["https://catalogue.ceda.ac.uk/api/v2/rpis/109026/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/109029/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/109030/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/109033/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/109022/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/109027/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/109028/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/109031/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/109034/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/148630/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/109023/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/109032/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/109024/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/109025/?format=json"],"procedureAcquisition":null,"procedureCompositeProcess":null,"procedureComputation":"https://catalogue.ceda.ac.uk/api/v2/computations/26046/?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"}]}