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The data were collected at Nxaraga, on the south edge of Chief’s Island (19°32'53''S; 23°10'45\"E), in the seasonally flooded area of the Okavango Delta, Botswana, for the purpose of quantifying greenhouse gas fluxes from seasonal floodplains. The data is reported at half-hourly interval for the measurement period 01/01/2018 to 31/12/2020. Missing data were caused by instrumentation downtime and are reported as -9999.","distributionFormats":[{"name":"Comma-separated values (CSV)","type":"text/csv","version":"unknown"}],"distributorContacts":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"distributor","email":"info@eidc.ac.uk"}],"id":"2170ebd0-7e6f-4871-97d9-1d42e210468f","incomingCitationCount":1,"incomingCitations":[{"description":"Helfter, C., Gondwe, M., Murray-Hudson, M., Makati, A., Lunt, M.F., Palmer, P.I., & Skiba, U.(2022). Phenology is the dominant control of methane emissions in a tropical non-forested wetland. Nature Communications, 13(1)","url":"https://doi.org/10.1038/s41467-021-27786-4"}],"infoLinks":[{"url":"https://data-package.ceh.ac.uk/sd/2170ebd0-7e6f-4871-97d9-1d42e210468f.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"keywordsOther":[{"value":"carbon dioxide","uri":"http://www.eionet.europa.eu/gemet/concept/1168"},{"value":"methane","uri":"http://www.eionet.europa.eu/gemet/concept/5199"},{"value":"meteorological parameter","uri":"http://www.eionet.europa.eu/gemet/concept/5195"}],"keywordsTheme":[{"value":"Environmental survey","uri":"http://onto.nerc.ac.uk/CEHMD/topic/7"}],"licences":[{"value":"This resource is available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"}],"lineage":"The eddy-covariance instrumentation consisted of a Campbell Scientific IRGASON and a LI-COR 7700 open-path methane (CH4) analyser. A Vaisala WXT520 weather station recorded air temperature, pressure, relative humidity, wind speed and wind direction. Total solar radiation and photosynthetically active radiation (PAR) were measured by a Skye Instruments pyranometer (model SKS1110) and quantum detector (model SKP215), respectively. A Campbell Scientific CR3000 datalogger logged all sensors (sampling rate of 10 Hz for the EC variables and 10-s interval for the meteorological parameters).\nThe instrumentation was installed by Dr Carole Helfter; monthly maintenance and data collection visits were effected by Dr Mangaliso Gondwe. The raw data were processed into half-hourly fluxes using the EddyPro software package version 7.0.6 and quality controlled by Dr Helfter.","metadataDate":"2026-06-29T16:28:57","notGEMINI":true,"onlineResources":[{"url":"https://data-package.ceh.ac.uk/data/2170ebd0-7e6f-4871-97d9-1d42e210468f","name":"Download the data","description":"Download a copy of this data","function":"download","type":"OTHER"},{"url":"https://data-package.ceh.ac.uk/sd/2170ebd0-7e6f-4871-97d9-1d42e210468f.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"pointsOfContact":[{"familyName":"Helfter","givenName":"Carole","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"pointOfContact","email":"enquiries@ceh.ac.uk","address":{"deliveryPoint":"Bush Estate","city":"Penicuik","administrativeArea":"Midlothian","postalCode":"EH26 0QB","country":"United Kingdom"},"fullName":"Helfter, C.","pointOfContact":"UK Centre for Ecology & Hydrology"}],"publicationDate":"2021-05-25T00:00:00.000Z","publishers":[{"organisationName":"NERC Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"}],"relationships":[{"relation":"http://purl.org/dc/terms/relation","target":"d366ed40-af8c-42be-86f2-bb90b11a659e"}],"resourceIdentifiers":[{"code":"https://catalogue.ceh.ac.uk/id/2170ebd0-7e6f-4871-97d9-1d42e210468f"},{"code":"10.5285/2170ebd0-7e6f-4871-97d9-1d42e210468f","codeSpace":"doi"}],"resourceType":{"value":"dataset"},"responsibleParties":[{"familyName":"Helfter","givenName":"C.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0001-5773-4652","fullName":"Helfter, C."},{"familyName":"Gondwe","givenName":"M.","organisationName":"Okavango Research Institute, University of Botswana","role":"author","email":"mgondwe@ub.ac.bw","nameIdentifier":"https://orcid.org/0000-0002-2607-5399","address":{"city":"Maun","country":"Botswana"},"fullName":"Gondwe, M."},{"familyName":"Skiba","givenName":"U.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0001-8659-6092","fullName":"Skiba, U."},{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"custodian","email":"info@eidc.ac.uk"},{"organisationName":"NERC Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"},{"organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"rightsHolder","email":"enquiries@ceh.ac.uk"},{"familyName":"Helfter","givenName":"Carole","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"pointOfContact","email":"enquiries@ceh.ac.uk","address":{"deliveryPoint":"Bush Estate","city":"Penicuik","administrativeArea":"Midlothian","postalCode":"EH26 0QB","country":"United Kingdom"},"fullName":"Helfter, C.","pointOfContact":"UK Centre for Ecology & Hydrology"}],"rightsHolders":[{"organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"rightsHolder","email":"enquiries@ceh.ac.uk"}],"spatialReferenceSystems":[{"code":"http://www.opengis.net/def/crs/EPSG/0/4326","title":"WGS 84"}],"spatialRepresentationTypes":["textTable"],"spatialResolutions":[{"distance":"15","uom":"urn:ogc:def:uom:EPSG::9001"}],"temporalExtents":[{"begin":"2018-01-01","end":"2020-12-31"}],"title":"Methane and carbon dioxide fluxes from a seasonal wetland in the Okavango Delta, Botswana, 2018-2020","topicCategories":[{"value":"climatologyMeteorologyAtmosphere","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/climatologyMeteorologyAtmosphere"},{"value":"inlandWaters","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/inlandWaters"}],"topics":["http://onto.nerc.ac.uk/CEHMD/topic/7"],"type":"dataset","uri":"https://catalogue.ceh.ac.uk/id/2170ebd0-7e6f-4871-97d9-1d42e210468f","useConstraints":[{"value":"This resource is available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"}]}