Observation Instance

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{
    "ob_id": 43656,
    "uuid": "c5545d7d3b7b405e8607afb8b2e581f2",
    "title": "Bermuda boundary Layer Experiment: Gas phase hydrogen chloride measurements from TILDAS instrument",
    "abstract": "This dataset contains hydrochloride concentration measurements from the University of York's Tunable Infrared Laser Direct Absorption Spectrometer (TILDAS). This instrument is situated on top of a 10-metre high tower at the Bermuda Institute of Ocean Sciences (BIOS) Tudor Hill Marine Atmospheric Observatory (THMAO) in Bermuda during the Bermuda boundary Layer Experiment of the Atmospheric Chemistry of Halogens (BLEACH) campaigns. The summer BLEACH campaign took place during June 2022 and the Winter BLEACH campaign took place during January/Febrauary 2023. \r\nTILDAS 1hz data have been averaged to hourly intervals, associated with the timestamp at the start of the hour, and filtered to exclude periods impacted by instrument issues and power outages. A background correction method has been applied to account for issues with background measurements.\r\nThese measurements will provide a quantitative observational constraint for the dependence of reactive halogen abundances on pollution levels, as well as allow us to assess the model's representation of the abundance and speciation of reactive halogens at a tropical, marine location and their interactions with one another.",
    "keywords": "TILDAS,BLEACH,Bermuda",
    "publicationState": "published",
    "dataPublishedTime": "2025-03-27T10:41:19",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
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        "dataPath": "/badc/deposited2025/BLEACH_York_TILDAS_Bermuda/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 29680,
        "numberOfFiles": 4,
        "fileFormat": "badc-csv"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/12171/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/4718/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84672/?format=api"
    ],
    "dataLineage": "Data were collected, quality controlled and prepared for archiving by the instrument scientists before upload to the Centre for Environmental Data Analysis (CEDA) for long term archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/43657/?format=api"
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        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208940/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208941/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208942/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208943/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208938/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208945/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208946/?format=api"
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            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
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