{
    "identifier": "gov.noaa.nodc:0183469",
    "accessLevel": "public",
    "contactPoint": {
        "@type": "vcard:Contact",
        "fn": "Your contact point",
        "hasEmail": "mailto:[email protected]"
    },
    "programCode": [
        "010:000"
    ],
    "landingPage": "",
    "title": "Dissolved inorganic carbon, total alkalinity, pH on Total Scale, nutrients and other variables collected from profile and discrete sample observations using CTD, Niskin bottle and other instruments on board NOAA Ship Henry B. Bigelow in the Gulf of Maine, Georges Bank, and Mid-Atlantic Bight from 2018-05-23 to 2018-06-04 (NCEI Accession 0183469)",
    "description": "This dataset contains dissolved inorganic carbon, Total alkalinity, pH on Total Scale, nutrients and other variables measured from profile discrete measurement in the Northeast coast of the US in 2018. Increasing amounts of atmospheric carbon dioxide from human industrial activities are causing changes in global ocean carbon chemistry ultimately resulting in a reduction in pH, a process termed ocean acidification. Studies have demonstrated adverse effects on calcifying organisms, particularly some invertebrates, corals, sea urchins, pteropods, and coccolithophores, but also on species of commercial interest such as oysters or crabs. In support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP), the Ecosystem Monitoring Cruises (ECOMON) are utilized to collect water samples to measure water column inorganic carbon and hydrographic parameters including nutrients. Samples are collected at three depths (surface, mid-depth and near bottom) at select stations on a quarterly basis in the northeastern Atlantic continental shelf region off the United States. Water samples are sent to and analyzed by scientists at the Atlantic Oceanographic & Meteorological Laboratory (AOML) for dissolved inorganic carbon, pH and total alkalinity concentrations. Additional samples are analyzed for nutrient concentrations at the University of Maine. These data are used to monitor short-long term coastal ocean acidification trends.",
    "language": "",
    "distribution": [
        {
            "@type": "dcat:Distribution",
            "mediaType": "application\/json",
            "accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.nodc%3A0183469"
        },
        {
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            "accessURL": "https:\/\/www.ncei.noaa.gov\/metadata\/geoportal\/\/rest\/metadata\/item\/gov.noaa.nodc%3A0183469\/html"
        },
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            "accessURL": "https:\/\/www.ncei.noaa.gov\/access\/metadata\/landing-page\/bin\/gfx?id=gov.noaa.nodc:0183469"
        }
    ],
    "bureauCode": [
        "010:04"
    ],
    "modified": "2025-11-19T16:05:52.851Z",
    "publisher": {
        "@type": "org:Organization",
        "name": "Your Publisher"
    },
    "theme": "",
    "keyword": [
        "0183469",
        "AMMONIA (NH3)",
        "DISSOLVED INORGANIC CARBON (DIC)",
        "DISSOLVED OXYGEN",
        "nitrate + nitrite content (concentration)",
        "pH",
        "phosphate",
        "SALINITY",
        "SIGMA-THETA",
        "silicate",
        "total alkalinity",
        "WATER TEMPERATURE",
        "coulometer for DIC measurement",
        "nutrient autoanalyzer",
        "oxygen sensor",
        "spectrophotometer",
        "titrator",
        "discrete sample",
        "profile",
        "NOAA Ship Henry B. Bigelow",
        "NOAA Atlantic Oceanographic and Meteorological Laboratory",
        "NOAA Northeast Fisheries Science Center",
        "University of Maine",
        "NOAA Atlantic Oceanographic and Meteorological Laboratory",
        "NODC Ocean Acidification Scientific Data Stewardship (OADS)",
        "US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP)",
        "East Coast - US\/Canada",
        "Georges Bank",
        "Gulf of Maine",
        "Mid-Atlantic Bight",
        "oceanography",
        "DOC\/NOAA\/NMFS\/NEFSC > Northeast Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
        "DOC\/NOAA\/OAR\/AOML > Atlantic Oceanographic and Meteorological Laboratory, OAR, NOAA, U.S. Department of Commerce",
        "UMAINE > University of Maine",
        "HB1803",
        "33HH20180523",
        "Ocean Acidification Program (OAP)",
        "Ocean Carbon and Acidification Data System (OCADS) Project",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE",
        "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE",
        "EARTH SCIENCE > OCEANS > SALINITY\/DENSITY > DENSITY",
        "EARTH SCIENCE > OCEANS > SALINITY\/DENSITY > SALINITY",
        "Discrete measurement",
        "Profile",
        "AMMONIA",
        "CTDOXY",
        "CTDOXYmg",
        "CTDPRS",
        "CTDSAL",
        "CTDTMP",
        "DIC",
        "Depth_sampling",
        "Depth_station",
        "NITRIT+NITRAT",
        "Niskin_nuts",
        "PHSPHT",
        "SILCAT",
        "Sigma-Theta",
        "TAlk",
        "pH",
        "AUTOANALYZER > AUTOANALYZER",
        "COULOMETERS",
        "OPTSPEC > Optical Spectrometer",
        "OXYGEN METERS > OXYGEN METERS",
        "Ships",
        "HENRY B. BIGELOW (call sign: WTDF, ICES code: 33HH, 2005-)",
        "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN",
        "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GEORGES BANK",
        "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MAINE",
        "Georges Bank",
        "Gulf of Maine",
        "Mid-Atlantic Bight",
        "environment",
        "oceans"
    ]
}