{
    "tag": 18587,
    "title": "HLY1102_CTD_casts",
    "pubdate": "2012",
    "sername": null,
    "series_name": null,
    "issue": "748",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/spcmsc\/HLY1102_CTD_casts.faq.html",
    "format": null,
    "email": null,
    "descript": "Models project the Arctic Ocean will become undersaturated with respect to carbonate minerals in the next decade.  Recent field results indicate parts may already be undersaturated in late summer months when ice melt is at its greatest extent.  However, few comprehensive data sets of carbonate system parameters in the Arctic Ocean exist.  Researchers from the U.S. Geological Survey (USGS) and University of South Florida (USF) collected high-resolution measurements of pCO2, pH, total dissolved inorganic carbon (DIC), total alkalinity (TA), and carbonate (CO3-2) from the Canada Basin that fill critical information gaps concerning Arctic carbon variability.  A Multiparameter Inorganic Carbon Analyzer (MICA) was used to collect approximately 9,000 measurements of air and sea pCO2, pH, and DIC along a 11,447-km trackline in August and September 2011. In addition, over 500 discrete surface water samples were taken. These data are being used to characterize and model regional pCO2, pH, and carbonate mineral saturation state. A high-resolution, three-dimensional map of these results will be presented.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Robbins, Lisa L.",
            "role": "Author"
        },
        {
            "name": "Yates, Kimberly K.",
            "role": "Author"
        },
        {
            "name": "Knorr, Paul O.",
            "role": "Author"
        },
        {
            "name": "Wynn, Jonathan",
            "role": "Author"
        },
        {
            "name": "Lisle, John T.",
            "role": "Author"
        },
        {
            "name": "Buczkowski, Brian J.",
            "role": "Author"
        },
        {
            "name": "Moore, Barbara",
            "role": "Author"
        },
        {
            "name": "Mayer, Larry",
            "role": "Author"
        },
        {
            "name": "Armstrong, Andrew",
            "role": "Author"
        },
        {
            "name": "Byrne, Robert H.",
            "role": "Author"
        },
        {
            "name": "Liu, Xuewu",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "153",
            "name": "chemical analysis",
            "scope": "Chemical techniques used to identify the composition of substances."
        },
        {
            "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": "2058",
            "name": "ocean acidification",
            "scope": "Decrease in the pH of ocean waters as a result of the increase in atmospheric carbon dioxide concentration."
        },
        {
            "thcode": 23,
            "code": "4",
            "name": "Assessments",
            "scope": "Derived data that provide information about the values, impacts, drivers, connections, or functions of a feature in its present distribution."
        },
        {
            "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": "494",
            "name": "chemical analysis",
            "scope": "used for all laboratory analyses in support of geochemical or biochemical research."
        },
        {
            "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": "274",
            "name": "ocean acidification",
            "scope": "changes in ocean chemistry related to the increase of carbon dioxide in the atmosphere."
        }
    ],
    "place_term": [],
    "image": [],
    "fan": [
        "11AOA01"
    ]
}