{
    "identifier": "gov.noaa.nodc:0220931",
    "accessLevel": "public",
    "contactPoint": {
        "@type": "vcard:Contact",
        "fn": "Your contact point",
        "hasEmail": "mailto:[email protected]"
    },
    "programCode": [
        "010:000"
    ],
    "landingPage": "",
    "title": "Water temperature, salinity, oxygen, currents and others taken by CTD, Niskin bottles, and ADCP from the research vessel Ryofu Maru, cruise 18-06, in the north Pacific from 2018-08-18 to 2018-08-20 (NCEI Accession 0220931)",
    "description": "This dataset contains water temperature, salinity, oxygen, currents and other data taken by CTD, Niskin bottles, and ADCP from the research vessel Ryofu Maru, cruise RF18-06, in the north Pacific.  The entire cruise was carried out during the period from August to September, 2018. Hydrographic observation was made using a Sea-Bird Electronics (SBE) 36 position carousel equipped with 10-liter Niskin water sample bottles, a CTD system (SBE911plus) equipped with JFE Advantech oxygen sensor (RINKO III) along 165E. Water samples were analyzed for salinity, dissolved oxygen, nutrients, pH and phytopigment (chlorophyll-a and phaeopigments). Current data was measured by Teledyne RDI's vessel-mounted ADCP system (38kHz Ocean Surveyor). Floating tar balls were sampled by ship-towing Neuston net.\n\nMeasurement data from this cruise are available in computer readable  format from NCEI accession 0175298 and from the World Ocean Database (cruise JP044322). See Documentation section on the dataset landing page.\n\nThis dataset is U.S. State Department MSR U2018-008 as part of the World Data Service for Oceanography.\n\nData are in PDF.",
    "language": "",
    "distribution": [
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            "mediaType": "application\/json",
            "accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.nodc%3A0220931"
        },
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            "mediaType": "text\/html",
            "accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.nodc%3A0220931\/html"
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            "accessURL": "https:\/\/www.ncei.noaa.gov\/access\/metadata\/landing-page\/bin\/gfx?id=gov.noaa.nodc:0220931"
        }
    ],
    "bureauCode": [
        "010:04"
    ],
    "modified": "2025-11-19T16:17:11.455Z",
    "publisher": {
        "@type": "org:Organization",
        "name": "Your Publisher"
    },
    "theme": "",
    "keyword": [
        "0220931",
        "CHLOROPHYLL - RELATIVE FLUORESCENCE",
        "CURRENT DIRECTION",
        "CURRENT SPEED",
        "DISSOLVED OXYGEN",
        "NITRATE",
        "NITROGEN",
        "pH",
        "PHAEOPIGMENTS",
        "phosphate",
        "SALINITY",
        "silicate",
        "WATER TEMPERATURE",
        "ADCP",
        "CTD",
        "net - plankton net",
        "Niskin bottle",
        "biological",
        "chemical",
        "derived products",
        "in situ",
        "physical",
        "profile",
        "Ryofu Maru",
        "Japan Meteorological Agency",
        "Japan Meteorological Agency",
        "U. S. Department of State Marine Scientific Research (MSR)",
        "North Pacific Ocean",
        "oceanography",
        "JP\/JMA > Japan Meteorological Agency, Japan",
        "MSR > U.S. Department of State Marine Scientific Research",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS > CHLOROPHYLL",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE",
        "EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS",
        "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE",
        "EARTH SCIENCE > OCEANS > SALINITY\/DENSITY > SALINITY",
        "ADCP > Acoustic Doppler Current Profiler",
        "CTD > Conductivity, Temperature, Depth",
        "NISKIN BOTTLES",
        "PLANKTON NETS",
        "JFE Advantech oxygen sensor (RINKO III)",
        "Ships",
        "Ryofu Maru (call sign: JGQH, ICES code: 49UP, 1995-2024)",
        "OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN",
        "LGW9TX",
        "environment",
        "oceans"
    ]
}