{
  "accessUrl": "https://data.icos-cp.eu/objects/u0OnoW9UK2jOdDwMEBPQDkYq",
  "coverageGeo": {
    "geometry": {
      "coordinates": [7.9851, 46.5475, 3571.8],
      "type": "Point"
    },
    "properties": {
      "label": "JFJ"
    },
    "type": "Feature"
  },
  "doi": "10.18160/3RZT-F12V",
  "fileName": "QCLAS_JFJ_CO2_ISOTOPES_CONTINUOUS_20250701_20260205.csv",
  "hash": "u0OnoW9UK2jOdDwMEBPQDkYqT0M95xqE-dN-g20jdzs",
  "latestVersion": "https://meta.icos-cp.eu/objects/u0OnoW9UK2jOdDwMEBPQDkYq",
  "parentCollections": [],
  "pid": "11676/u0OnoW9UK2jOdDwMEBPQDkYq",
  "references": {
    "authors": [{
      "email": "bela.tuzson@empa.ch",
      "firstName": "Béla",
      "lastName": "Tuzson",
      "orcid": "0000-0001-7442-5405",
      "self": {
        "comments": ["Empa, Switzerland"],
        "label": "Béla Tuzson",
        "uri": "http://meta.icos-cp.eu/resources/people/Bela_Tuzson"
      }
    }, {
      "email": "patrick.siegwolf@empa.ch",
      "firstName": "Patrick",
      "lastName": "Siegwolf",
      "orcid": "0000-0001-9231-2252",
      "self": {
        "comments": ["Empa, Switzerland"],
        "uri": "http://meta.icos-cp.eu/resources/people/Patrick_Siegwolf"
      }
    }, {
      "email": "lukas.emmenegger@empa.ch",
      "firstName": "Lukas",
      "lastName": "Emmenegger",
      "orcid": "0000-0002-9812-3986",
      "self": {
        "comments": [],
        "uri": "http://meta.icos-cp.eu/resources/people/Lukas_Emmenegger"
      }
    }],
    "citationBibTex": "@misc{https://doi.org/10.18160/3rzt-f12v,\n  doi = {10.18160/3RZT-F12V},\n  url = {https://meta.icos-cp.eu/objects/u0OnoW9UK2jOdDwMEBPQDkYq},\n  author = {Tuzson, Béla and Siegwolf, Patrick and Emmenegger, Lukas},\n  keywords = {13C-CO2, 18O-CO2, ICOS Switzerland, QCLAS, atmospheric CO2 dry air mole fraction, continuous time series, quantum cascade laser, stable isotopes},\n  title = {Atmospheric GHG isotope data product from Jungfraujoch (13.9 m)},\n  publisher = {ICOS ERIC - Carbon Portal},\n  year = {2026},\n  copyright = {Creative Commons Attribution 4.0 International}\n}",
    "citationRis": "TY  - DATA\r\nT1  - Atmospheric GHG isotope data product from Jungfraujoch (13.9 m)\r\nAU  - Tuzson, Béla\r\nAU  - Siegwolf, Patrick\r\nAU  - Emmenegger, Lukas\r\nDO  - 10.18160/3RZT-F12V\r\nUR  - https://meta.icos-cp.eu/objects/u0OnoW9UK2jOdDwMEBPQDkYq\r\nKW  - 13C-CO2\r\nKW  - 18O-CO2\r\nKW  - ICOS Switzerland\r\nKW  - QCLAS\r\nKW  - atmospheric CO2 dry air mole fraction\r\nKW  - continuous time series\r\nKW  - quantum cascade laser\r\nKW  - stable isotopes\r\nPY  - 2026\r\nPB  - ICOS ERIC - Carbon Portal\r\nER  -",
    "citationString": "Tuzson, B., Siegwolf, P., Emmenegger, L., 2026. Atmospheric GHG isotope data product from Jungfraujoch (13.9 m). https://doi.org/10.18160/3RZT-F12V",
    "doi": {
      "contributors": [{
        "affiliation": [],
        "contributorType": "Producer",
        "familyName": "Tuzson",
        "givenName": "Béla",
        "nameIdentifiers": [{
          "nameIdentifier": "0000-0001-7442-5405",
          "nameIdentifierScheme": "ORCID",
          "schemeUri": "http://orcid.org/"
        }],
        "nameType": "Personal"
      }, {
        "affiliation": [],
        "contributorType": "Producer",
        "familyName": "Siegwolf",
        "givenName": "Patrick",
        "nameIdentifiers": [{
          "nameIdentifier": "0000-0001-9231-2252",
          "nameIdentifierScheme": "ORCID",
          "schemeUri": "http://orcid.org/"
        }],
        "nameType": "Personal"
      }, {
        "affiliation": [],
        "contributorType": "Producer",
        "familyName": "Emmenegger",
        "givenName": "Lukas",
        "nameIdentifiers": [{
          "nameIdentifier": "0000-0002-9812-3986",
          "nameIdentifierScheme": "ORCID",
          "schemeUri": "http://orcid.org/"
        }],
        "nameType": "Personal"
      }],
      "creators": [{
        "affiliation": [],
        "familyName": "Tuzson",
        "givenName": "Béla",
        "nameIdentifiers": [{
          "nameIdentifier": "0000-0001-7442-5405",
          "nameIdentifierScheme": "ORCID",
          "schemeUri": "http://orcid.org/"
        }],
        "nameType": "Personal"
      }, {
        "affiliation": [],
        "familyName": "Siegwolf",
        "givenName": "Patrick",
        "nameIdentifiers": [{
          "nameIdentifier": "0000-0001-9231-2252",
          "nameIdentifierScheme": "ORCID",
          "schemeUri": "http://orcid.org/"
        }],
        "nameType": "Personal"
      }, {
        "affiliation": [],
        "familyName": "Emmenegger",
        "givenName": "Lukas",
        "nameIdentifiers": [{
          "nameIdentifier": "0000-0002-9812-3986",
          "nameIdentifierScheme": "ORCID",
          "schemeUri": "http://orcid.org/"
        }],
        "nameType": "Personal"
      }],
      "dates": [{
        "date": "2026-04-07",
        "dateType": "Submitted"
      }, {
        "date": "2025-07-01/2026-02-05",
        "dateType": "Collected"
      }, {
        "date": "2026-04-07",
        "dateType": "Issued"
      }, {
        "date": "2026-02-24",
        "dateType": "Created"
      }],
      "descriptions": [{
        "description": "The dataset contains continuous, hourly-averaged CO₂ concentration values (in dry air mole fraction) and their stable isotopic composition (13C-CO₂ and 18O-CO₂), reported as delta values (in ‰), collected at the Jungfraujoch station in Switzerland. The measurements are obtained by quantum cascade laser absorption spectroscopy (QCLAS).",
        "descriptionType": "Other"
      }],
      "doi": "10.18160/3RZT-F12V",
      "formats": ["ICOS ATC time series"],
      "fundingReferences": [{
        "funderName": "Swiss National Science Foundation"
      }, {
        "funderName": "Swiss Federal Laboratories for Materials Science and Technology"
      }, {
        "funderName": "Swiss State Secretariat for Education, Research and Innovation"
      }],
      "geoLocations": [{
        "geoLocationPlace": "Jungfraujoch (JFJ)",
        "geoLocationPoint": {
          "pointLatitude": 46.5475,
          "pointLongitude": 7.9851
        }
      }],
      "publicationYear": 2026,
      "publisher": "ICOS ERIC - Carbon Portal",
      "relatedIdentifiers": [{
        "relatedIdentifier": "11676/5CTfzVgtoaIc-7okMhGaL9LN",
        "relatedIdentifierType": "Handle",
        "relationType": "IsDescribedBy",
        "resourceTypeGeneral": "Text"
      }],
      "rightsList": [{
        "lang": "en",
        "rights": "Creative Commons Attribution 4.0 International",
        "rightsIdentifier": "cc-by-4.0",
        "rightsIdentifierScheme": "SPDX",
        "rightsUri": "https://creativecommons.org/licenses/by/4.0/legalcode",
        "schemeUri": "https://spdx.org/licenses/"
      }],
      "state": "findable",
      "subjects": [{
        "subject": "13C-CO2"
      }, {
        "subject": "18O-CO2"
      }, {
        "subject": "ICOS Switzerland"
      }, {
        "subject": "QCLAS"
      }, {
        "subject": "atmospheric CO2 dry air mole fraction"
      }, {
        "subject": "continuous time series"
      }, {
        "subject": "quantum cascade laser"
      }, {
        "subject": "stable isotopes"
      }],
      "titles": [{
        "title": "Atmospheric GHG isotope data product from Jungfraujoch (13.9 m)"
      }],
      "types": {
        "resourceType": "CSV time series",
        "resourceTypeGeneral": "Dataset"
      },
      "url": "https://meta.icos-cp.eu/objects/u0OnoW9UK2jOdDwMEBPQDkYq",
      "version": "1.0"
    },
    "keywords": ["continuous time series", "ICOS Switzerland", "atmospheric CO2 dry air mole fraction", "stable isotopes", "13C-CO2", "18O-CO2", "QCLAS", "quantum cascade laser"],
    "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": "2025-07-01–2026-02-05",
    "title": "Atmospheric GHG isotope data product from Jungfraujoch (13.9 m)"
  },
  "size": 487606,
  "specificInfo": {
    "acquisition": {
      "interval": {
        "start": "2025-07-01T00:00:00Z",
        "stop": "2026-02-05T23:00:00Z"
      },
      "samplingHeight": 13.9,
      "station": {
        "countryCode": "CH",
        "id": "JFJ",
        "location": {
          "alt": 3571.8,
          "label": "JFJ",
          "lat": 46.5475,
          "lon": 7.9851
        },
        "networks": [],
        "org": {
          "name": "Jungfraujoch",
          "self": {
            "comments": [],
            "label": "JFJ",
            "uri": "http://meta.icos-cp.eu/resources/stations/AS_JFJ"
          },
          "webpageDetails": {
            "coverImage": "https://www.icos-cp.eu/media/476",
            "linkBoxes": [{
              "coverImage": "https://www.icos-cp.eu/media/477",
              "name": "Photos",
              "orderWeight": 0,
              "target": "https://www.flickr.com/photos/icos_ri/albums/72157689534700370/"
            }, {
              "coverImage": "https://www.icos-cp.eu/media/473",
              "name": "Video",
              "orderWeight": 1,
              "target": "https://www.youtube.com/watch?v=9AES99HJNPU"
            }, {
              "coverImage": "https://www.icos-cp.eu/media/479",
              "name": "Story",
              "orderWeight": 2,
              "target": "https://www.icos-cp.eu/observations/atmosphere/stations/jungfraujoch"
            }, {
              "coverImage": "https://www.icos-cp.eu/media/474",
              "name": "Data",
              "orderWeight": 3,
              "target": "https://data.icos-cp.eu/portal/#%7B%22filterCategories%22:%7B%22station%22:%5B%22iAS_JFJ%22%5D%7D%7D"
            }, {
              "coverImage": "https://www.icos-cp.eu/media/475",
              "name": "Other ICOS stations",
              "orderWeight": 4,
              "target": "https://www.icos-cp.eu/observations/national-networks"
            }, {
              "coverImage": "https://www.icos-cp.eu/media/473",
              "name": "ICOS Switzerland",
              "orderWeight": 5,
              "target": "https://www.icos-cp.eu/observations/national-networks/switzerland"
            }],
            "self": {
              "comments": ["Located in the UNESCO World Heritage site Swiss Alps Jungfrau-Aletsch at 3580 metres above sea level, ICOS Atmosphere station Jungfraujoch is the highest measurement station within the ICOS network."],
              "label": "JFJ elements",
              "uri": "http://meta.icos-cp.eu/resources/icos/JFJ-elements"
            }
          }
        },
        "pictures": ["https://www.icos-cp.eu/sites/default/files/2017-08/Jungfraujoch_Observatory.jpg"],
        "responsibleOrganization": {
          "name": "International Foundation High Altitude Research Stations Jungfraujoch and Gornergrat",
          "self": {
            "comments": [],
            "label": "HFSJG",
            "uri": "http://meta.icos-cp.eu/resources/organizations/HFSJG_2"
          },
          "website": "https://www.ifjungo.ch"
        },
        "specificInfo": {
          "_type": "atc",
          "discontinued": false,
          "documentation": [{
            "hash": "nH61hV5bNZ4z8ECRJQ34BNFS7Ub7OQdUOmSBbT3UtRs",
            "name": "STILT station characterization for Jungfraujoch at 720m",
            "res": "https://meta.icos-cp.eu/objects/nH61hV5bNZ4z8ECRJQ34BNFS"
          }],
          "labelingDate": "2018-05-31",
          "stationClass": "1",
          "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": 1,
          "wigosId": "0-20008-0-JFJ"
        }
      }
    },
    "columns": [{
      "label": "TIMESTAMP",
      "model": {
        "comments": [],
        "label": "TIMESTAMP (ISO)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/timeStampColumn"
      },
      "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"
        }
      }
    }, {
      "label": "co2",
      "model": {
        "comments": [],
        "label": "co2 (dry air mole fraction, ppm) (opt)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/co2AtcFlaskMoleFrac"
      },
      "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": "CO2 (dry air mole fraction)",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/co2MixingRatio"
        },
        "unit": "µmol mol-1"
      }
    }, {
      "label": "co2_stdev",
      "model": {
        "comments": [],
        "label": "co2_stdev [ppm] (opt)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/co2_stdev"
      },
      "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": "CO2 (dry air mole fraction)",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/co2MixingRatio"
        },
        "unit": "µmol mol-1"
      }
    }, {
      "label": "d13c",
      "model": {
        "comments": [],
        "label": "d13c (δ in CO2, per mil) (opt)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/delta13co2PerMil"
      },
      "valueFormat": "http://meta.icos-cp.eu/ontologies/cpmeta/float32",
      "valueType": {
        "quantityKind": {
          "comments": ["Unitless ratio. Can be any real number."],
          "label": "ratio",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/ratio"
        },
        "self": {
          "comments": [],
          "label": "δ13C-CO2",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/13CO2"
        },
        "unit": "per mil"
      }
    }, {
      "label": "d13c_stdev",
      "model": {
        "comments": [],
        "label": "d13c_stdev (δ in CO2) [per mil] (opt)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/delta13co2StdevPerMil"
      },
      "valueFormat": "http://meta.icos-cp.eu/ontologies/cpmeta/float32",
      "valueType": {
        "quantityKind": {
          "comments": ["Unitless ratio. Can be any real number."],
          "label": "ratio",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/ratio"
        },
        "self": {
          "comments": [],
          "label": "standard deviation of δ13C-CO2",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/del13co2Stdev"
        },
        "unit": "per mil"
      }
    }, {
      "label": "d18o",
      "model": {
        "comments": ["Previous label: \"d18o (δ in CO2, per mille) (opt)\""],
        "label": "d18o (δ in CO2, per mil) (opt)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/d18OAtcPerMil"
      },
      "valueFormat": "http://meta.icos-cp.eu/ontologies/cpmeta/float32",
      "valueType": {
        "quantityKind": {
          "comments": ["Unitless ratio. Can be any real number."],
          "label": "ratio",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/ratio"
        },
        "self": {
          "comments": [],
          "label": "δ18O-CO2",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/C18O2AtcPerMil"
        },
        "unit": "per mil"
      }
    }, {
      "label": "d18o_stdev",
      "model": {
        "comments": [],
        "label": "d18o_stdev [per mil] (opt)",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/d18o_stdev"
      },
      "valueFormat": "http://meta.icos-cp.eu/ontologies/cpmeta/float32",
      "valueType": {
        "quantityKind": {
          "comments": ["Unitless ratio. Can be any real number."],
          "label": "ratio",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/ratio"
        },
        "self": {
          "comments": [],
          "label": "δ18O-CO2",
          "uri": "http://meta.icos-cp.eu/resources/cpmeta/C18O2AtcPerMil"
        },
        "unit": "per mil"
      }
    }],
    "nRows": 5280,
    "productionInfo": {
      "comment": "For more information, please see the accompanying data description document https://hdl.handle.net/11676/5CTfzVgtoaIc-7okMhGaL9LN",
      "contributors": [{
        "email": "bela.tuzson@empa.ch",
        "firstName": "Béla",
        "lastName": "Tuzson",
        "orcid": "0000-0001-7442-5405",
        "self": {
          "comments": ["Empa, Switzerland"],
          "label": "Béla Tuzson",
          "uri": "http://meta.icos-cp.eu/resources/people/Bela_Tuzson"
        }
      }, {
        "email": "patrick.siegwolf@empa.ch",
        "firstName": "Patrick",
        "lastName": "Siegwolf",
        "orcid": "0000-0001-9231-2252",
        "self": {
          "comments": ["Empa, Switzerland"],
          "uri": "http://meta.icos-cp.eu/resources/people/Patrick_Siegwolf"
        }
      }, {
        "email": "lukas.emmenegger@empa.ch",
        "firstName": "Lukas",
        "lastName": "Emmenegger",
        "orcid": "0000-0002-9812-3986",
        "self": {
          "comments": [],
          "uri": "http://meta.icos-cp.eu/resources/people/Lukas_Emmenegger"
        }
      }],
      "creator": {
        "email": "patrick.siegwolf@empa.ch",
        "firstName": "Patrick",
        "lastName": "Siegwolf",
        "orcid": "0000-0001-9231-2252",
        "self": {
          "comments": ["Empa, Switzerland"],
          "uri": "http://meta.icos-cp.eu/resources/people/Patrick_Siegwolf"
        }
      },
      "dateTime": "2026-02-24T13:30:00Z",
      "documentation": {
        "hash": "5CTfzVgtoaIc-7okMhGaL9LNNmpdTPLObV_lzgCY21M",
        "name": "Dataset description: CO2 stable isotope time series from Jungfraujoch (JFJ)",
        "res": "https://meta.icos-cp.eu/objects/5CTfzVgtoaIc-7okMhGaL9LN"
      },
      "host": {
        "name": "Swiss Federal Laboratories for Materials Science and Technology",
        "self": {
          "comments": [],
          "label": "EMPA",
          "uri": "http://meta.icos-cp.eu/resources/organizations/EMPA"
        },
        "website": "https://www.empa.ch"
      },
      "sources": []
    }
  },
  "specification": {
    "dataLevel": 2,
    "datasetSpec": {
      "self": {
        "comments": ["NO Flag column included - intended to be used for isotope datasets with non-ATC standard Flag values"],
        "label": "GHG isotope time series",
        "uri": "http://meta.icos-cp.eu/resources/cpmeta/atmGhgIsotopeTimeSeries"
      }
    },
    "documentation": [],
    "encoding": {
      "comments": [],
      "label": "zip",
      "uri": "http://meta.icos-cp.eu/ontologies/cpmeta/zipEncoding"
    },
    "format": {
      "goodFlagValues": ["R", "U", "O"],
      "self": {
        "comments": ["Semicolon-separated ASCII, with #-prefixed multi-line header. Timestamp is represented my multiple columns (year, month, day, etc.)"],
        "label": "ICOS ATC time series",
        "uri": "http://meta.icos-cp.eu/ontologies/cpmeta/asciiAtcProductTimeSer"
      },
      "uri": "http://meta.icos-cp.eu/ontologies/cpmeta/asciiAtcProductTimeSer"
    },
    "project": {
      "self": {
        "comments": ["Various other data not associated with a specific project"],
        "label": "Miscellaneous",
        "uri": "http://meta.icos-cp.eu/resources/projects/misc"
      }
    },
    "self": {
      "comments": ["Generic greenhouse gas isotope tracer observational time series.", "Intended to be used for datasets with non-ATC standard Flag values."],
      "label": "Atmospheric GHG isotope data product",
      "uri": "http://meta.icos-cp.eu/resources/cpmeta/atmGhgIsotopeProduct"
    },
    "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": "2026-04-07T14:30:11.541752666Z",
    "stop": "2026-04-07T14:30:12.585320814Z",
    "submitter": {
      "name": "Carbon Portal",
      "self": {
        "comments": [],
        "label": "CP",
        "uri": "http://meta.icos-cp.eu/resources/organizations/CP"
      }
    }
  }
}