{
    "tag": 14747,
    "title": "Water-column environmental variables and accompanying discrete CTD measurements collected offshore the U.S. Mid- and South Atlantic (ver. 2.0, July 2022)",
    "pubdate": "2021",
    "sername": null,
    "series_name": null,
    "issue": "DOI: 10.5066\/P9K2GOAL",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/ScienceBase\/DR_P9K2GOAL\/DEEPSEARCH_CTD_BTLDATA_v.2.0_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "Various water column variables, including salinity, dissolved inorganic nutrients, dissolved inorganic carbon, and radio-carbon isotopes were measured in samples collected using a Niskin-bottle rosette at selected depths from deepwater sites offshore the US Mid- and South Atlantic from September 2017 to April 2019. CTD (Conductivity Temperature Depth) data were also collected at each depth that a Niskin-bottle sample was collected and are presented along with the water sample data during the following five cruises: PC1704 (USGS field activity 2017-004-FA) in September 2017, ENG615 (USGS field activity 2018-024-FA) in June 2018, AT41 (USGS field activity 2018-042-FA) in August 2018, BMCC-2018 (USGS field activity 2018-053-FA) in October 2018, and RB1903 (USGS field activity 2019-620-FA) in April 2019.  This data release supersedes version 1.0, published in March 2021 at https:\/\/doi.org\/10.5066\/P9V7ODDR. Versioning details are documented in the accompanying VersionHistory_P9K2GOAL.txt file.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Prouty, Nancy G.",
            "role": "Author"
        },
        {
            "name": "Baker, Miranda C.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "222",
            "name": "CTD measurement",
            "scope": "Instrumental determination of conductivity, temperature, and pressure as a function of depth to determine the salinity of seawater."
        },
        {
            "thcode": 2,
            "code": "703",
            "name": "marine chemistry",
            "scope": "Branch of chemistry that deals with the properties, composition, structure, and interaction of substances in the seas and oceans."
        },
        {
            "thcode": 2,
            "code": "708",
            "name": "marine water quality",
            "scope": "Observed intrinsic characteristics of marine waters affecting their ability to support life or facilitate biological processes such as waste decomposition."
        },
        {
            "thcode": 2,
            "code": "817",
            "name": "ocean salinity",
            "scope": "Measure of the percentage of dissolved salts in seawater."
        },
        {
            "thcode": 2,
            "code": "819",
            "name": "ocean temperature",
            "scope": "Distribution of heat in the oceans, including surface water, thermocline and mode waters, and deep waters.  Includes discussion and measures of both in-situ and potential temperature."
        },
        {
            "thcode": 15,
            "code": "007",
            "name": "environment",
            "scope": "Environmental resources, protection and conservation, for example environmental pollution, waste storage and treatment, environmental impact assessment, monitoring environmental risk, nature reserves, landscape, water quality, air quality, environmental modeling"
        },
        {
            "thcode": 15,
            "code": "008",
            "name": "geoscientificInformation",
            "scope": "Information pertaining to earth sciences, for example geophysical features and processes, geology, minerals, sciences dealing with the composition, structure and origin of the earth's rocks, risks of earthquakes, volcanic activity, landslides, gravity information, soils, permafrost, hydrogeology, groundwater, erosion"
        },
        {
            "thcode": 15,
            "code": "014",
            "name": "oceans",
            "scope": "Features and characteristics of salt water bodies (excluding inland waters), for example tides, tidal waves, coastal information, reefs, maritime, outer continental shelf submerged lands, shoreline"
        },
        {
            "thcode": 23,
            "code": "24",
            "name": "Water Column Features",
            "scope": "Includes persistent or regularly occurring waves, layers, water masses, upwellings, stratifications, and fronts that are defined by patterns of water velocity, physical properties, and biogeochemical properties; these features are listed and defined in the Layer, Hydroform, and Biogeochemical Feature layers of the Water Column Component of CMECS. Distributions are records of currents, physical properties, or biogeochemical water properties, often based on shipboard surveys or coastal monitoring programs, and maps of currents or water property climatology, which indicate the expected locations of features under present conditions or apply a classification structure like that of CMECS. Assessments are data that provide information about the ecological or economic values, impacts, drivers, connections, or functions of water column features in their present distributions. Predictions are the results of models projecting future changes to currents or other persistent oceanographic features (for example, clines, stratification, connectivity, linkages, and zones of separation) due to climate change, ice-cap melt, and changing freshwater inputs; models predicting the ecological or economic impacts of these changes; and scenario-testing models comparing ecological or economic outcomes of different management actions."
        },
        {
            "thcode": 61,
            "code": "751",
            "name": "chemical oceanography",
            "scope": "the study of the chemistry of oceans, often with a focus on chemical cycling."
        },
        {
            "thcode": 61,
            "code": "754",
            "name": "physical oceanography",
            "scope": "the study of physical conditions and processes in the oceans."
        }
    ],
    "place_term": [],
    "image": [],
    "fan": [
        "2017-004-FA",
        "2018-024-FA",
        "2018-042-FA",
        "2018-053-FA",
        "2019-620-FA"
    ]
}