contact:
- organization: {email: ncei.info@noaa.gov, name: NOAA National Centers for Environmental
      Information}
  roles: [custodian]
- organization: {email: null, name: NOAA National Centers for Environmental Information}
  roles: [custodian]
distribution:
- name: {en: Project Metadata, fr: Project Metadata (FR)}
  url: https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0176626.html
- name: {en: NCEI Dataset Landing Page, fr: NCEI Dataset Landing Page (FR)}
  url: https://doi.org/10.25921/c1sn-9631
- name: {en: Descriptive Information, fr: Descriptive Information (FR)}
  url: https://www.ncei.noaa.gov/archive/accession/oas/176626
- name: {en: HTTPS, fr: HTTPS (FR)}
  url: https://www.ncei.noaa.gov/archive/accession/download/176626
- name: {en: FTP, fr: FTP (FR)}
  url: ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0125/0176626/
- name: {en: CIOOS HTTP, fr: SIOOC HTTP}
  url: https://data.cioospacific.ca/ocads/gov.noaa.nodc_0176626/
identification:
  abstract:
    en: 'This dataset consists of global oceanic database of tritium and helium isotope
      measurements made by numerous researchers and laboratories over a period exceeding
      60 years: from 1952-10-21 to 2016-01-22 in the Pacific Ocean, Atlantic Ocean,
      Indian Ocean, Southern Ocean, Arctic Ocean, Mediterranean Sea, Baltic Sea, Black
      Sea. Tritium and helium isotope data provide key information on ocean circulation,
      ventilation, and mixing, as well as the rates of biogeochemical processes, and
      deep-ocean hydrothermal processes. The dataset includes approximately 60,000
      valid tritium measurements, 63,000 valid helium isotope determinations, 57,000
      dissolved helium concentrations, and 34,000 dissolved neon concentrations. Some
      quality control has been applied in that questionable data have been flagged
      and clearly compromised data excluded entirely. Appropriate metadata has been
      included: geographic location, date, and sample depth. When available, water
      temperature, salinity, and dissolved oxygen were included. Data quality flags
      and data originator information (including methodology) are also included.'
    fr: 'This dataset consists of global oceanic database of tritium and helium isotope
      measurements made by numerous researchers and laboratories over a period exceeding
      60 years: from 1952-10-21 to 2016-01-22 in the Pacific Ocean, Atlantic Ocean,
      Indian Ocean, Southern Ocean, Arctic Ocean, Mediterranean Sea, Baltic Sea, Black
      Sea. Tritium and helium isotope data provide key information on ocean circulation,
      ventilation, and mixing, as well as the rates of biogeochemical processes, and
      deep-ocean hydrothermal processes. The dataset includes approximately 60,000
      valid tritium measurements, 63,000 valid helium isotope determinations, 57,000
      dissolved helium concentrations, and 34,000 dissolved neon concentrations. Some
      quality control has been applied in that questionable data have been flagged
      and clearly compromised data excluded entirely. Appropriate metadata has been
      included: geographic location, date, and sample depth. When available, water
      temperature, salinity, and dissolved oxygen were included. Data quality flags
      and data originator information (including methodology) are also included. (FR)'
    translations:
      fr: {message: Auto-translated using AWS, validated: false}
  acknowledgement: acknowledgement
  associated_resources: []
  keywords:
    default:
      en: ['0176626', AWI > Alfred Wegener Institute for Polar and Marine Research,
        'Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research',
        Arctic Ocean, Atlantic Ocean, Baltic Sea, Black Sea, CLIVAR > Climate Variability,
        'COLUMBIA/LDEO > Lamont-Doherty Earth Observatory, Columbia University', CTD,
        'CTD > Conductivity, Temperature, Depth', Climate Variability and Predictability
          (CLIVAR), Columbia University; Lamont-Doherty Earth Observatory, DISSOLVED
          OXYGEN, 'DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR,
          NOAA, U.S. Department of Commerce', Data synthesis product, DelHe3, DelHe3_Error,
        Discrete measurement, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY, EARTH SCIENCE
          > OCEANS > OCEAN CHEMISTRY > DISSOLVED GASES, EARTH SCIENCE > OCEANS > OCEAN
          CHEMISTRY > OXYGEN, HELIUM, Helium, Helium_Error, Indian Ocean, Mediterranean
          Sea, NEON, NISKIN BOTTLES, Neon, Neon_Error, Niskin bottle, North Atlantic
          Ocean, North Pacific Ocean, OCEAN > ARCTIC OCEAN, OCEAN > ATLANTIC OCEAN
          > NORTH ATLANTIC OCEAN, OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN, OCEAN
          > INDIAN OCEAN, OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN, OCEAN > PACIFIC
          OCEAN > SOUTH PACIFIC OCEAN, Ocean Carbon and Acidification Data System
          (OCADS) Project, Oxygen, Pacific Ocean, Princeton University, Profile, South
          Atlantic Ocean, South Pacific Ocean, Southern Ocean, Temperature, Tritium,
        Tritium (Hydrogen isotope), Tritium_Error, US DOC; NOAA; OAR; Pacific Marine
          Environmental Laboratory, University of Bremen, University of Tokyo, University
          of Virginia, VARIOUS CHARTERED VESSELS, Various, WOCE > World Ocean Circulation
          Experiment, World Ocean Circulation Experiment (WOCE), chemical, discrete
          sample, profile, titrator]
      fr: [0176626 (FR), AWI > Alfred Wegener Institute for Polar and Marine Research
          (FR), 'Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research
          (FR)', Arctic Ocean (FR), Atlantic Ocean (FR), Baltic Sea (FR), Black Sea
          (FR), CLIVAR > Climate Variability (FR), 'COLUMBIA/LDEO > Lamont-Doherty
          Earth Observatory, Columbia University (FR)', CTD (FR), 'CTD > Conductivity,
          Temperature, Depth (FR)', Climate Variability and Predictability (CLIVAR)
          (FR), Columbia University; Lamont-Doherty Earth Observatory (FR), DISSOLVED
          OXYGEN (FR), 'DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory,
          OAR, NOAA, U.S. Department of Commerce (FR)', Data synthesis product (FR),
        DelHe3 (FR), DelHe3_Error (FR), Discrete measurement (FR), EARTH SCIENCE >
          OCEANS > OCEAN CHEMISTRY (FR), EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY
          > DISSOLVED GASES (FR), EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN
          (FR), HELIUM (FR), Helium (FR), Helium_Error (FR), Indian Ocean (FR), Mediterranean
          Sea (FR), NEON (FR), NISKIN BOTTLES (FR), Neon (FR), Neon_Error (FR), Niskin
          bottle (FR), North Atlantic Ocean (FR), North Pacific Ocean (FR), OCEAN
          > ARCTIC OCEAN (FR), OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN (FR),
        OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN (FR), OCEAN > INDIAN OCEAN (FR),
        OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN (FR), OCEAN > PACIFIC OCEAN >
          SOUTH PACIFIC OCEAN (FR), Ocean Carbon and Acidification Data System (OCADS)
          Project (FR), Oxygen (FR), Pacific Ocean (FR), Princeton University (FR),
        Profile (FR), South Atlantic Ocean (FR), South Pacific Ocean (FR), Southern
          Ocean (FR), Temperature (FR), Tritium (FR), Tritium (Hydrogen isotope) (FR),
        Tritium_Error (FR), US DOC; NOAA; OAR; Pacific Marine Environmental Laboratory
          (FR), University of Bremen (FR), University of Tokyo (FR), University of
          Virginia (FR), VARIOUS CHARTERED VESSELS (FR), Various (FR), WOCE > World
          Ocean Circulation Experiment (FR), World Ocean Circulation Experiment (WOCE)
          (FR), chemical (FR), discrete sample (FR), profile (FR), titrator (FR)]
    eov:
      en: [EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE, EARTH SCIENCE
          > OCEANS > SALINITY/DENSITY > SALINITY, SALINITY, Salinity, The Global Ocean
          Ship-based Hydrographic Investigations Program (GO-SHIP), 'U-MIAMI/RSMAS
          > Rosenstiel School of Marine and Atmospheric Science, University of Miami',
        University of California San Diego; Scripps Institution of Oceanography, University
          of Miami Rosenstiel School of Marine and Atmospheric Science, WATER TEMPERATURE,
        WHOI > WOODS HOLE OCEANOGRAPHIC INSTITUTION, Woods Hole Oceanographic Institution,
        oceanography, physical]
      fr: [EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE (FR), EARTH
          SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY (FR), SALINITY (FR), Salinity
          (FR), The Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP)
          (FR), 'U-MIAMI/RSMAS > Rosenstiel School of Marine and Atmospheric Science,
          University of Miami (FR)', University of California San Diego; Scripps Institution
          of Oceanography (FR), University of Miami Rosenstiel School of Marine and
          Atmospheric Science (FR), WATER TEMPERATURE (FR), WHOI > WOODS HOLE OCEANOGRAPHIC
          INSTITUTION (FR), Woods Hole Oceanographic Institution (FR), oceanography
          (FR), physical (FR)]
  project:
    en: [project_a, project_b]
    fr: [project_a in french, project_b in french]
  status: onGoing
  temporal_begin: '1950-07-31'
  temporal_duration: P1D
  temporal_end: '2025-04-16'
  time_coverage_resolution: P1D
  title:
    en: A comprehensive global oceanic dataset of discrete measurements of helium
      isotope and tritium during the hydrographic cruises on various ships from 1952-10-21
      to 2016-01-22 (NCEI Accession 0176626)
    fr: A comprehensive global oceanic dataset of discrete measurements of helium
      isotope and tritium during the hydrographic cruises on various ships from 1952-10-21
      to 2016-01-22 (NCEI Accession 0176626) (FR)
    translations:
      fr: {message: Auto-translated using AWS, validated: false}
instruments:
- description: {en: null, fr: null}
  id: null
  manufacturer: null
  type: {en: null, fr: null}
  version: null
- description: {en: null, fr: null}
  id: null
  manufacturer: null
  type: {en: null, fr: null}
  version: null
- description: {en: null, fr: null}
  id: null
  manufacturer: null
  type: {en: null, fr: null}
  version: null
metadata:
  comment: auto-generated comment
  dates: {creation: '2024-01-01'}
  history:
  - scope: model
    statement:
      en: null
      fr: None (FR)
      translations:
        fr: {message: text translated using the Amazon translate service / texte traduit
            à l'aide du service de traduction Amazon, verified: false}
  - scope: model
    statement:
      en: null
      fr: None (FR)
      translations:
        fr: {message: text translated using the Amazon translate service / texte traduit
            à l'aide du service de traduction Amazon, verified: false}
  identifier: gov.noaa.nodc:0176626
  language: en
  maintenance_note: auto-generated
  naming_authority: ca.cioos
  scope: model
  use_constraints:
    licence: {code: CC-BY-4.0, title: Creative Commons Attribution 4.0, url: 'https://creativecommons.org/licenses/by/4.0/'}
    limitations:
      en: limitations in english
      fr: limitations in french
      translations:
        fr: {message: Auto-translated using AWS, validated: false}
spatial:
  bbox: [-179.98, -82.38, 180.0, 90.0]
  description: description of the spatial extent or study area of the dataset
  descriptionIdentifier: A2345-FS323-DG434-345DG
  vertical: [0, 10]
  vertical_positive: down
