{"ob_id":45847,"uuid":"88dc78a226634c1c929ce93ba8eb0074","title":"ESA Water Vapour Climate Change Initiative (Water_Vapour_cci): Total Column Water Vapour monthly gridded data over land at 0.5 degree resolution, version 4.2","abstract":"This dataset consists of monthly total column water vapour (TCWV) over land, at a 0.5 degree resolution, observed by various satellite instruments. \r\nIt has been produced by the European Space Agency Water Vapour Climate Change Initiative (Water_Vapour_cci), and forms part of their TCVW over land Climate Data Record 1 (TCWV-land (CDR-1)).\r\n\r\nThis version of the data is v4.2. This is an updated dataset from the v3.2 product, in summary providing the following improvements:\r\n- Time series has been extended, now covering years 2000-2023.\r\n- L1b input data has been extended by using the full time range of Terra MODIS measurements, and by ingesting Aqua MODIS and Sentinel-3 OLCI-B as additional sensors.\r\n- Number of L2 observations contributing to a L3 grid cell is now provided per single sensor.\r\n- Flags have been revised and extended.","keywords":"water vapour, CCI, TCWV","publicationState":"citable","dataPublishedTime":"2026-07-01T13:51:16","doiPublishedTime":"2026-07-01T14:01:26","updateFrequency":"","status":"completed","result_field":{"ob_id":"https://catalogue.ceda.ac.uk/api/v2/observations/45902/?format=json","dataPath":"/neodc/esacci/water_vapour/data/TCWV-land/L3/v4.2/0.5deg/monthly","oldDataPath":[],"storageLocation":"internal","storageStatus":"online","volume":436253178,"numberOfFiles":287,"fileFormat":"Files are provided in NetCDF format."},"timePeriod":"https://catalogue.ceda.ac.uk/api/v2/times/13143/?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/50415/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/50417/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/59109/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/60310/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/60311/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/60312/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/60313/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/60315/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/60316/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/60317/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/60318/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/60319/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/82827/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/93431/?format=json","https://catalogue.ceda.ac.uk/api/v2/phenomona/93435/?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/13920/?format=json"],"projects":["https://catalogue.ceda.ac.uk/api/v2/projects/32934/?format=json"],"observationcollection_set":["https://catalogue.ceda.ac.uk/api/v2/observationcollections/45846/?format=json"],"responsiblepartyinfo_set":["https://catalogue.ceda.ac.uk/api/v2/rpis/219152/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219146/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219151/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219145/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219147/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219148/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219149/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219150/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219154/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219153/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219234/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219235/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219155/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219156/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219157/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/219158/?format=json"],"procedureAcquisition":null,"procedureCompositeProcess":"https://catalogue.ceda.ac.uk/api/v2/composites/45858/?format=json","procedureComputation":null,"permissions":[{"ob_id":"https://catalogue.ceda.ac.uk/api/v2/observations/2529/?format=json","useLimitation":null,"accessConstraints":null,"accessCategory":"public","accessRoles":null,"label":"public: None group","licenceURL":"https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_watervapour_terms_and_conditions.pdf","licenceClassifications":"any"}],"discoveryKeywords":[{"ob_id":1140,"name":"ESACCI"}]}