{
    "tag": 18140,
    "title": "Coastal Groundwater Chemical Data from the North and South Shores of Long Island, New York",
    "pubdate": "2017",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/F78S4NT5",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/whcmsc\/SB_data_release\/DR_F78S4NT5\/GWgeochemLI_meta.faq.html",
    "format": null,
    "email": null,
    "descript": "Groundwater data were collected in the spring and fall of 2008 from three sites representing different geological settings and biogeochemical conditions within the surficial glacial aquifer of Long Island, NY. Investigations were designed to examine the extent to which average vadose zone thickness in contributing watersheds controlled biogeochemical conditions and processes, including dissolved oxygen concentration (DO), oxidation-reduction potential (Eh), dissolved organic carbon concentration (DOC), and microbial dinitrogen (N2) production. Greatest N2 production was observed at the south shore of Long Island, which is characterized by a thin vadose zone, low DO and Eh, and relatively high DOC. Limited N2 production occurred at the north shore of Long Island, which is characterized by a thick vadose zone, higher DO, higher Eh, and lower DOC. Our results show that vadose zone thickness exerts an important control on the extent of microbial N2 production in aquifers that lack a significant supply of sediment-bound reducing potential. We interpret heterotrophic denitrification to be the primary driver of N2 production in the present study, while acknowledging that anaerobic ammonium oxidation (anammox) likely plays an unquantified role as well.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Brooks, T. Wallace",
            "role": "Author"
        },
        {
            "name": "Kroeger, Kevin D.",
            "role": "Author"
        },
        {
            "name": "Bratton, John F.",
            "role": "Author"
        },
        {
            "name": "Crusius, John",
            "role": "Author"
        },
        {
            "name": "Szymczycha, Beata",
            "role": "Author"
        },
        {
            "name": "Mann, Adrian G.",
            "role": "Author"
        },
        {
            "name": "Brosnahan, Sandra M.",
            "role": "Author"
        },
        {
            "name": "Casso, Michael A.",
            "role": "Author"
        },
        {
            "name": "Erban, Laura",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "513",
            "name": "groundwater",
            "scope": "All water that exists beneath the land surface, but more commonly applied to water in fully saturated soils and geologic formations."
        },
        {
            "thcode": 2,
            "code": "554",
            "name": "hydrogeology",
            "scope": "Study of subsurface waters and geologic aspects of surface waters."
        },
        {
            "thcode": 2,
            "code": "854",
            "name": "oxygen content (water)",
            "scope": "Measurement of the concentration of oxygen dissolved in water, which is an important indicator of the condition of a water body."
        },
        {
            "thcode": 2,
            "code": "1010",
            "name": "salinity",
            "scope": "Measure of the concentration of salts dissolved in a solution."
        },
        {
            "thcode": 2,
            "code": "1191",
            "name": "tritium analysis",
            "scope": "Mass spectrometric measurement of the decay of the radioactive isotope of hydrogen in water samples as a means of dating and investigating changes in water."
        },
        {
            "thcode": 2,
            "code": "1298",
            "name": "water chemistry",
            "scope": "Branch of chemistry that deals with the elements and compounds in water."
        },
        {
            "thcode": 2,
            "code": "1302",
            "name": "water pH",
            "scope": "The negative logarithm of the hydrogen ion concentration or activity of a water solution. Used for expressing both acidity (pH less than 7) and alkalinity (pH greater than 7), with 7 considered neutral."
        },
        {
            "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"
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/www.sciencebase.gov\/catalog\/file\/get\/5953a36de4b062508e3c7b5a?name=Map_study_sites_LongIslandNY.jpg",
            "description": "Thumbnail image of the sampling sites."
        }
    ],
    "fan": [
        "2008-007-FA",
        "2008-020-FA"
    ]
}