{
    "identifier": "gov.noaa.nodc:0176626",
    "accessLevel": "public",
    "contactPoint": {
        "@type": "vcard:Contact",
        "fn": "Your contact point",
        "hasEmail": "mailto:[email protected]"
    },
    "programCode": [
        "010:000"
    ],
    "landingPage": "",
    "title": "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)",
    "description": "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.",
    "language": "",
    "distribution": [
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    ],
    "bureauCode": [
        "010:04"
    ],
    "modified": "2025-11-19T16:05:30.022Z",
    "publisher": {
        "@type": "org:Organization",
        "name": "Your Publisher"
    },
    "theme": "",
    "keyword": [
        "0176626",
        "DISSOLVED OXYGEN",
        "HELIUM",
        "NEON",
        "SALINITY",
        "Tritium (Hydrogen isotope)",
        "WATER TEMPERATURE",
        "CTD",
        "Niskin bottle",
        "titrator",
        "chemical",
        "discrete sample",
        "physical",
        "profile",
        "VARIOUS CHARTERED VESSELS",
        "Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research",
        "Lamont-Doherty Earth Observatory",
        "NOAA Pacific Marine Environmental Laboratory",
        "Princeton University",
        "Scripps Institution of Oceanography",
        "University of Bremen",
        "University of Miami Rosenstiel School of Marine and Atmospheric Science",
        "University of Tokyo",
        "University of Virginia",
        "Woods Hole Oceanographic Institution",
        "Woods Hole Oceanographic Institution",
        "Climate Variability and Predictability (CLIVAR)",
        "The Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP)",
        "World Ocean Circulation Experiment (WOCE)",
        "Arctic Ocean",
        "Indian Ocean",
        "North Atlantic Ocean",
        "North Pacific Ocean",
        "South Atlantic Ocean",
        "South Pacific Ocean",
        "oceanography",
        "AWI > Alfred Wegener Institute for Polar and Marine Research",
        "COLUMBIA\/LDEO > Lamont-Doherty Earth Observatory, Columbia University",
        "DOC\/NOAA\/OAR\/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce",
        "U-MIAMI\/RSMAS > Rosenstiel School of Marine and Atmospheric Science, University of Miami",
        "WHOI > WOODS HOLE OCEANOGRAPHIC INSTITUTION",
        "Various",
        "CLIVAR > Climate Variability",
        "WOCE > World Ocean Circulation Experiment",
        "Ocean Carbon and Acidification Data System (OCADS) Project",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > DISSOLVED GASES",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN",
        "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE",
        "EARTH SCIENCE > OCEANS > SALINITY\/DENSITY > SALINITY",
        "Data synthesis product",
        "Discrete measurement",
        "Profile",
        "DelHe3",
        "DelHe3_Error",
        "Helium",
        "Helium_Error",
        "Neon",
        "Neon_Error",
        "Oxygen",
        "Salinity",
        "Temperature",
        "Tritium",
        "Tritium_Error",
        "CTD > Conductivity, Temperature, Depth",
        "NISKIN BOTTLES",
        "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",
        "Arctic Ocean",
        "Atlantic Ocean",
        "Baltic Sea",
        "Black Sea",
        "Indian Ocean",
        "Mediterranean Sea",
        "Pacific Ocean",
        "Southern Ocean",
        "environment",
        "oceans"
    ]
}