{
  "accessUrl": "https://data.icos-cp.eu/objects/BAbs0Y_H9Au5ERxTXCQN9PLn",
  "coverageGeo": {
    "geometry": {
      "coordinates": [55.3841, -21.0796, 2154.0],
      "type": "Point"
    },
    "properties": {
      "label": "RUN"
    },
    "type": "Feature"
  },
  "fileName": "ch4_run_surface-insitu_472_allvalid.nc",
  "hash": "BAbs0Y_H9Au5ERxTXCQN9PLniFf0R41ASpFir3FPyRM",
  "latestVersion": "https://meta.icos-cp.eu/objects/BAbs0Y_H9Au5ERxTXCQN9PLn",
  "parentCollections": [{
    "comments": [],
    "label": "European Obspack compilation of atmospheric carbon dioxide, methane, nitrous oxide and carbon monoxide data from ICOS stations for the period 1972-2026; obspack_466_ICOSFT2026.2_20260411",
    "uri": "https://meta.icos-cp.eu/collections/HmJ5ecEGbPVRAlg9L0-p8raL"
  }],
  "pid": "11676/BAbs0Y_H9Au5ERxTXCQN9PLn",
  "previousVersion": "https://meta.icos-cp.eu/objects/2EcFZ5EIs2hYPf_0_ch_5kya",
  "references": {
    "authors": [{
      "name": "ICOS RI",
      "self": {
        "comments": ["use this for documents that originate within ICOS"],
        "label": "ICOS RI",
        "uri": "http://meta.icos-cp.eu/resources/organizations/ICOS_RI"
      }
    }, {
      "email": "martine.demaziere@aeronomie.be",
      "firstName": "Martine",
      "lastName": "De Mazière",
      "orcid": "0000-0003-4889-5889",
      "self": {
        "comments": [],
        "uri": "http://meta.icos-cp.eu/resources/people/Martine_De%20Mazi%C3%A8re"
      }
    }, {
      "email": "mahesh.sha@aeronomie.be",
      "firstName": "Mahesh Kumar",
      "lastName": "Sha",
      "orcid": "0000-0003-1440-1529",
      "self": {
        "comments": [],
        "uri": "http://meta.icos-cp.eu/resources/people/Mahesh%20Kumar_Sha"
      }
    }, {
      "email": "michel.ramonet@lsce.ipsl.fr",
      "firstName": "Michel",
      "lastName": "Ramonet",
      "orcid": "0000-0003-1157-1186",
      "self": {
        "comments": [],
        "uri": "http://meta.icos-cp.eu/resources/people/Michel_Ramonet"
      }
    }, {
      "email": "edouard.blandin@lsce.ipsl.fr",
      "firstName": "Edouard",
      "lastName": "Blandin",
      "self": {
        "comments": [],
        "uri": "http://meta.icos-cp.eu/resources/people/Edouard_Blandin"
      }
    }, {
      "email": "marc.delmotte@lsce.ipsl.fr",
      "firstName": "Marc",
      "lastName": "Delmotte",
      "orcid": "0000-0003-3805-818X",
      "self": {
        "comments": [],
        "uri": "http://meta.icos-cp.eu/resources/people/Marc_Delmotte"
      }
    }, {
      "email": "lea.gest@lsce.ipsl.fr",
      "firstName": "Léa",
      "lastName": "Gest",
      "self": {
        "comments": [],
        "uri": "http://meta.icos-cp.eu/resources/people/L%C3%A9a_Gest"
      }
    }, {
      "email": "christian.hermans@aeronomie.be",
      "firstName": "Christian",
      "lastName": "Hermans",
      "self": {
        "comments": [],
        "uri": "http://meta.icos-cp.eu/resources/people/Christian_Hermans"
      }
    }, {
      "email": "nicolas.kumps@aeronomie.be",
      "firstName": "Nicolas",
      "lastName": "Kumps",
      "self": {
        "comments": [],
        "uri": "http://meta.icos-cp.eu/resources/people/Nicolas_Kumps"
      }
    }, {
      "email": "morgan.lopez@lsce.ipsl.fr",
      "firstName": "Morgan",
      "lastName": "Lopez",
      "orcid": "0000-0003-1725-3410",
      "self": {
        "comments": [],
        "uri": "http://meta.icos-cp.eu/resources/people/Morgan_Lopez"
      }
    }, {
      "email": "jean-marc.metzger@univ-reunion.fr",
      "firstName": "Jean-Marc",
      "lastName": "Metzger",
      "orcid": "0000-0002-6291-6677",
      "self": {
        "comments": [],
        "uri": "http://meta.icos-cp.eu/resources/people/Jean-Marc_Metzger"
      }
    }],
    "citationBibTex": "@misc{https://hdl.handle.net/11676/BAbs0Y_H9Au5ERxTXCQN9PLn,\r\n  author={ICOS RI and De Mazière, Martine and Sha, Mahesh Kumar and Ramonet, Michel and Blandin, Edouard and Delmotte, Marc and Gest, Léa and Hermans, Christian and Kumps, Nicolas and Lopez, Morgan and Metzger, Jean-Marc},\r\n  title={Obspack CH4 time-series result from La Réunion (6.0 m), 2014-12-06–2026-04-09},\r\n  year={2026},\r\n  keywords={WMO X2004A, atmospheric dry air ch4 mole fraction},\r\n  url={https://hdl.handle.net/11676/BAbs0Y_H9Au5ERxTXCQN9PLn},\r\n  publisher={Carbon Portal},\r\n  copyright={http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence},\r\n  pid={11676/BAbs0Y_H9Au5ERxTXCQN9PLn}\r\n}",
    "citationRis": "TY - DATA\r\nT1 - Obspack CH4 time-series result from La Réunion (6.0 m), 2014-12-06–2026-04-09\r\nID - 11676/BAbs0Y_H9Au5ERxTXCQN9PLn\r\nPY - 2026\r\nUR - https://hdl.handle.net/11676/BAbs0Y_H9Au5ERxTXCQN9PLn\r\nPB - Carbon Portal\r\nAU - ICOS RI\r\nAU - De Mazière, Martine\r\nAU - Sha, Mahesh Kumar\r\nAU - Ramonet, Michel\r\nAU - Blandin, Edouard\r\nAU - Delmotte, Marc\r\nAU - Gest, Léa\r\nAU - Hermans, Christian\r\nAU - Kumps, Nicolas\r\nAU - Lopez, Morgan\r\nAU - Metzger, Jean-Marc\r\nKW - WMO X2004A\r\nKW - atmospheric dry air ch4 mole fraction\r\nER - ",
    "citationString": "ICOS RI, De Mazière, M., Sha, M., Ramonet, M., Blandin, E., Delmotte, M., Gest, L., Hermans, C., Kumps, N., Lopez, M., Metzger, J. (2026). Obspack CH4 time-series result from La Réunion (6.0 m), 2014-12-06–2026-04-09, European ObsPack, https://hdl.handle.net/11676/BAbs0Y_H9Au5ERxTXCQN9PLn",
    "keywords": ["WMO X2004A", "atmospheric dry air ch4 mole fraction"],
    "licence": {
      "baseLicence": "https://creativecommons.org/licenses/by/4.0",
      "name": "ICOS CCBY4 Data Licence",
      "url": "http://meta.icos-cp.eu/ontologies/cpmeta/icosLicence",
      "webpage": "https://data.icos-cp.eu/licence"
    },
    "temporalCoverageDisplay": "2014-12-06–2026-04-09",
    "title": "Obspack CH4 time-series result from La Réunion (6.0 m)"
  },
  "size": 1909672,
  "specificInfo": {
    "acquisition": {
      "interval": {
        "start": "2014-12-06T20:30:00Z",
        "stop": "2026-04-09T23:30:00Z"
      },
      "samplingHeight": 6.0,
      "station": {
        "countryCode": "FR",
        "id": "RUN",
        "location": {
          "alt": 2154.0,
          "label": "RUN",
          "lat": -21.0796,
          "lon": 55.3841
        },
        "networks": [],
        "org": {
          "name": "La Réunion",
          "self": {
            "comments": [],
            "label": "RUN",
            "uri": "http://meta.icos-cp.eu/resources/stations/AS_RUN"
          }
        },
        "pictures": ["https://meta.icos-cp.eu/files/6SgFsiSLTk_rOjZ2EY_Q7NYD/Maido_station.JPG"],
        "responsibleOrganization": {
          "name": "Observatoire de Physique de l'Atmosphère de la Réunion",
          "self": {
            "comments": [],
            "label": "OPAR",
            "uri": "http://meta.icos-cp.eu/resources/organizations/OPAR"
          },
          "website": "https://opar.univ-reunion.fr"
        },
        "specificInfo": {
          "_type": "atc",
          "discontinued": false,
          "documentation": [],
          "labelingDate": "2019-11-21",
          "stationClass": "2",
          "theme": {
            "icon": "https://static.icos-cp.eu/images/themes/atm.svg",
            "markerIcon": "https://static.icos-cp.eu/share/stations/icons/as.png",
            "self": {
              "comments": [],
              "label": "Atmospheric data",
              "uri": "http://meta.icos-cp.eu/resources/themes/atmosphere"
            }
          },
          "timeZoneOffset": 4,
          "wigosId": "0-20008-0-RUN"
        }
      }
    },
    "columns": [{
      "label": "time",
      "model": {
        "comments": [],
        "label": "time (ISO, UTC)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/obspackTimeColumn"
      },
      "valueFormat": "http://meta.icos-cp.eu/ontologies/cpmeta/iso8601dateTime",
      "valueType": {
        "self": {
          "comments": [],
          "label": "time instant, UTC",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/timeStamp"
        }
      }
    }, {
      "isFlagFor": ["http://meta.icos-cp.eu/resources/cpmeta/obspackCo2ValueColumn", "http://meta.icos-cp.eu/resources/cpmeta/obspackValueColumn", "http://meta.icos-cp.eu/resources/cpmeta/obspackCh4ValueColumn", "http://meta.icos-cp.eu/resources/cpmeta/obspackN2oValueColumn", "http://meta.icos-cp.eu/resources/cpmeta/obspackCoValueColumn"],
      "label": "qc_flag",
      "model": {
        "comments": [],
        "label": "qc_flag (single letter, obspack)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/obspackCharQCFlagColumn"
      },
      "valueFormat": "http://meta.icos-cp.eu/ontologies/cpmeta/bmpChar",
      "valueType": {
        "self": {
          "comments": ["single-letter quality flag"],
          "label": "quality flag",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/oneLetterFlag"
        }
      }
    }, {
      "label": "icos_datalevel",
      "model": {
        "comments": [],
        "label": "icos_datalevel (Obspack)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/obspackDatalevelColumn"
      },
      "valueFormat": "http://meta.icos-cp.eu/ontologies/cpmeta/int32",
      "valueType": {
        "quantityKind": {
          "comments": ["including zero"],
          "label": "natural number",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/naturalNumber"
        },
        "self": {
          "comments": ["0=historic, 1=L1, 2=L2"],
          "label": "data level (Obspack)",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/obspackDatalevel"
        }
      }
    }, {
      "label": "value_std_dev",
      "model": {
        "comments": [],
        "label": "value_std_dev (Obspack, mol.mol-1)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/obspackCo2StdevColumn"
      },
      "valueFormat": "http://meta.icos-cp.eu/ontologies/cpmeta/float32",
      "valueType": {
        "quantityKind": {
          "comments": ["Magnitude of a part of a whole. Can be measured in percent, or be a number between 0 and maximum (inclusive)."],
          "label": "portion",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/portion"
        },
        "self": {
          "comments": [],
          "label": "standard deviation of gas mole fraction",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/gasMoleFractionSd"
        },
        "unit": "a.u."
      }
    }, {
      "label": "icos_LTR",
      "model": {
        "comments": ["long-term repeatability"],
        "label": "icos_LTR (Obspack)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/obspackLTRcolumn"
      },
      "valueFormat": "http://meta.icos-cp.eu/ontologies/cpmeta/float32",
      "valueType": {
        "quantityKind": {
          "comments": ["Magnitude of a part of a whole. Can be measured in percent, or be a number between 0 and maximum (inclusive)."],
          "label": "portion",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/portion"
        },
        "self": {
          "comments": ["refers to a number of algorithms of uncertainty calculation, as described in https://doi.org/10.5194/amt-14-89-2021"],
          "label": "ICOS mole fraction uncertainty metrics",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/icosMoleFractionUncertainty"
        },
        "unit": "mol mol-1"
      }
    }, {
      "label": "icos_STTB",
      "model": {
        "comments": ["short-term target bias"],
        "label": "icos_STTB (Obspack)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/obspackSTTBcolumn"
      },
      "valueFormat": "http://meta.icos-cp.eu/ontologies/cpmeta/float32",
      "valueType": {
        "quantityKind": {
          "comments": ["Magnitude of a part of a whole. Can be measured in percent, or be a number between 0 and maximum (inclusive)."],
          "label": "portion",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/portion"
        },
        "self": {
          "comments": ["refers to a number of algorithms of uncertainty calculation, as described in https://doi.org/10.5194/amt-14-89-2021"],
          "label": "ICOS mole fraction uncertainty metrics",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/icosMoleFractionUncertainty"
        },
        "unit": "mol mol-1"
      }
    }, {
      "label": "icos_SMR",
      "model": {
        "comments": ["continuous measurement repeatability"],
        "label": "icos_SMR (Obspack)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/obspackSMRcolumn"
      },
      "valueFormat": "http://meta.icos-cp.eu/ontologies/cpmeta/float32",
      "valueType": {
        "quantityKind": {
          "comments": ["Magnitude of a part of a whole. Can be measured in percent, or be a number between 0 and maximum (inclusive)."],
          "label": "portion",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/portion"
        },
        "self": {
          "comments": ["refers to a number of algorithms of uncertainty calculation, as described in https://doi.org/10.5194/amt-14-89-2021"],
          "label": "ICOS mole fraction uncertainty metrics",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/icosMoleFractionUncertainty"
        },
        "unit": "mol mol-1"
      }
    }, {
      "label": "value",
      "model": {
        "comments": [],
        "label": "value (CH4 dry air mole fraction)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/obspackCh4ValueColumn"
      },
      "valueFormat": "http://meta.icos-cp.eu/ontologies/cpmeta/float32",
      "valueType": {
        "quantityKind": {
          "comments": ["Magnitude of a part of a whole. Can be measured in percent, or be a number between 0 and maximum (inclusive)."],
          "label": "portion",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/portion"
        },
        "self": {
          "comments": [],
          "label": "CH4 (dry air mole fraction)",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/ch4MixingRatioMolMol"
        },
        "unit": "mol mol-1"
      }
    }],
    "nRows": 90239,
    "productionInfo": {
      "comment": "This data file contains high accuracy European ObsPack observational timeseries in netCDF format of ambient mole fraction of CH4 in dry air collected at La Réunion (6.0 m). The measurements were calibrated using the WMO GAW calibration scale WMO X2004A. Included are (all whenever available) historical PI QCed data, ICOS Level 2 data, ICOS FastTrack data and ICOS NRT data. It is part of the 2026.2 FastTrack update of the Globalview EU data product and is intended for use in carbon cycle inverse modeling, model evaluation, and satellite validation studies. Metadata for the full CH4 product release are available at https://commons.datacite.org/doi.org/10.18160/227Y-E2KA. Please also visit http://www.gml.noaa.gov/ccgg/obspack/ for more information. If you use these data in your research, please consider citing the full ObsPack release that this file is part of (https://commons.datacite.org/doi.org/10.18160/1PZ9-SDJ2).",
      "contributors": [{
        "email": "martine.demaziere@aeronomie.be",
        "firstName": "Martine",
        "lastName": "De Mazière",
        "orcid": "0000-0003-4889-5889",
        "self": {
          "comments": [],
          "uri": "http://meta.icos-cp.eu/resources/people/Martine_De%20Mazi%C3%A8re"
        }
      }, {
        "email": "mahesh.sha@aeronomie.be",
        "firstName": "Mahesh Kumar",
        "lastName": "Sha",
        "orcid": "0000-0003-1440-1529",
        "self": {
          "comments": [],
          "uri": "http://meta.icos-cp.eu/resources/people/Mahesh%20Kumar_Sha"
        }
      }, {
        "email": "michel.ramonet@lsce.ipsl.fr",
        "firstName": "Michel",
        "lastName": "Ramonet",
        "orcid": "0000-0003-1157-1186",
        "self": {
          "comments": [],
          "uri": "http://meta.icos-cp.eu/resources/people/Michel_Ramonet"
        }
      }, {
        "email": "edouard.blandin@lsce.ipsl.fr",
        "firstName": "Edouard",
        "lastName": "Blandin",
        "self": {
          "comments": [],
          "uri": "http://meta.icos-cp.eu/resources/people/Edouard_Blandin"
        }
      }, {
        "email": "marc.delmotte@lsce.ipsl.fr",
        "firstName": "Marc",
        "lastName": "Delmotte",
        "orcid": "0000-0003-3805-818X",
        "self": {
          "comments": [],
          "uri": "http://meta.icos-cp.eu/resources/people/Marc_Delmotte"
        }
      }, {
        "email": "lea.gest@lsce.ipsl.fr",
        "firstName": "Léa",
        "lastName": "Gest",
        "self": {
          "comments": [],
          "uri": "http://meta.icos-cp.eu/resources/people/L%C3%A9a_Gest"
        }
      }, {
        "email": "christian.hermans@aeronomie.be",
        "firstName": "Christian",
        "lastName": "Hermans",
        "self": {
          "comments": [],
          "uri": "http://meta.icos-cp.eu/resources/people/Christian_Hermans"
        }
      }, {
        "email": "nicolas.kumps@aeronomie.be",
        "firstName": "Nicolas",
        "lastName": "Kumps",
        "self": {
          "comments": [],
          "uri": "http://meta.icos-cp.eu/resources/people/Nicolas_Kumps"
        }
      }, {
        "email": "morgan.lopez@lsce.ipsl.fr",
        "firstName": "Morgan",
        "lastName": "Lopez",
        "orcid": "0000-0003-1725-3410",
        "self": {
          "comments": [],
          "uri": "http://meta.icos-cp.eu/resources/people/Morgan_Lopez"
        }
      }, {
        "email": "jean-marc.metzger@univ-reunion.fr",
        "firstName": "Jean-Marc",
        "lastName": "Metzger",
        "orcid": "0000-0002-6291-6677",
        "self": {
          "comments": [],
          "uri": "http://meta.icos-cp.eu/resources/people/Jean-Marc_Metzger"
        }
      }],
      "creator": {
        "name": "ICOS RI",
        "self": {
          "comments": ["use this for documents that originate within ICOS"],
          "label": "ICOS RI",
          "uri": "http://meta.icos-cp.eu/resources/organizations/ICOS_RI"
        }
      },
      "dateTime": "2026-04-10T14:28:41.250601Z",
      "host": {
        "name": "Carbon Portal",
        "self": {
          "comments": [],
          "label": "CP",
          "uri": "http://meta.icos-cp.eu/resources/organizations/CP"
        }
      },
      "sources": [{
        "hash": "q9WWlafXOhCGeGB4u9etvXebMp-ns0BslwWliE8U6cY",
        "name": "ICOS_ATC_L2_L2-2025.1_RUN_6.0_CTS_CH4.zip",
        "res": "https://meta.icos-cp.eu/objects/q9WWlafXOhCGeGB4u9etvXeb"
      }, {
        "hash": "mDNMI4WN_H_tTqBZSq4hhJulP-3tqCgRwaraemEN5uU",
        "name": "ICOS_ATC_OBSPACK-Europe-L2-2025_RUN_6.0_CTS_CH4.zip",
        "res": "https://meta.icos-cp.eu/objects/mDNMI4WN_H_tTqBZSq4hhJul"
      }, {
        "hash": "yft37mb6ql9Abg2Udm4CJ1VQr3X1PIC0Rtb2iQjfNk4",
        "name": "ICOS_ATC_L1_FAST_TRACK_L1-FastTrack-2026.2_RUN_6.0_CTS_CH4.zip",
        "res": "https://meta.icos-cp.eu/objects/yft37mb6ql9Abg2Udm4CJ1VQ"
      }, {
        "hash": "jrX4jqVZXYpC6dZg-ePOKB_8O7C1ATXBAXcNEdxQ5EU",
        "name": "ICOS_ATC_NRT_RUN_2025-04-01_2026-04-09_6.0_249_CH4.zip",
        "res": "https://meta.icos-cp.eu/objects/jrX4jqVZXYpC6dZg-ePOKB_8"
      }]
    }
  },
  "specification": {
    "dataLevel": 2,
    "datasetSpec": {
      "self": {
        "comments": [],
        "label": "Carbon Portal Obspack CH4",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/cpObspackCh4Dataset"
      }
    },
    "documentation": [],
    "encoding": {
      "comments": [],
      "label": "plain file",
      "uri": "http://meta.icos-cp.eu/ontologies/cpmeta/plainFileEncoding"
    },
    "format": {
      "goodFlagValues": ["R", "U", "O"],
      "self": {
        "comments": [],
        "label": "NetCDF (time series)",
        "uri": "http://meta.icos-cp.eu/ontologies/cpmeta/netcdfTimeSeries"
      },
      "uri": "http://meta.icos-cp.eu/ontologies/cpmeta/netcdfTimeSeries"
    },
    "keywords": ["Obspack", "ICOS", "time series", "CH4"],
    "project": {
      "self": {
        "comments": ["European atmospheric measurement data, produced and supplied by Atmospheric Thematic Center in a fashion similar to ICOS, but also including non-ICOS stations and pre-ICOS historical observations. These data are also submitted for inclusion in ObsPack by NOAA."],
        "label": "European ObsPack",
        "uri": "http://meta.icos-cp.eu/resources/projects/euroObspack"
      }
    },
    "self": {
      "comments": [],
      "label": "Obspack CH4 time-series result",
      "uri": "http://meta.icos-cp.eu/resources/cpmeta/ObspackCH4TimeSeriesResult"
    },
    "specificDatasetType": "StationTimeSeries",
    "theme": {
      "icon": "https://static.icos-cp.eu/images/themes/atm.svg",
      "markerIcon": "https://static.icos-cp.eu/share/stations/icons/as.png",
      "self": {
        "comments": [],
        "label": "Atmospheric data",
        "uri": "http://meta.icos-cp.eu/resources/themes/atmosphere"
      }
    }
  },
  "submission": {
    "start": "2026-04-11T15:45:47.980683794Z",
    "stop": "2026-04-11T15:45:49.419865704Z",
    "submitter": {
      "name": "Carbon Portal",
      "self": {
        "comments": [],
        "label": "CP",
        "uri": "http://meta.icos-cp.eu/resources/organizations/CP"
      }
    }
  }
}