{
    "identifier": "gov.noaa.nodc:0278781",
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    "programCode": [
        "010:000"
    ],
    "landingPage": "",
    "title": "Water column nitrate+nitrite d15N measurements from R\/V L'Atalante in the southwest Pacific Ocean between New Caledonia and Tahiti from February to March 2015 (NCEI Accession 0278781)",
    "description": "This dataset contains chemical and physical data collected on R\/V L'Atalante during cruise OUTPACE in the Coral Sea and South Pacific Ocean from 2015-02-23 to 2015-03-30. These data include depth, nitrate plus nitrite, and sigma-theta potential density. The instruments used to collect these data include Isotope-ratio Mass Spectrometer. These data were collected by Dr Angela Knapp of Florida State University, Oliver Grosso, Sophie Bonnet, and Thierry Moutin of Mediterranean Institute of Oceanography, and Nathalie Leblond of Villefranche Oceanographic Laboratory as part of the \"Quantifying nitrogen fixation along unique geochemical gradients in the southwest Pacific Ocean (SW Pac N2 fixation)\" project. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2018-04-13.\n\nThe following is the text of the dataset description provided by BCO-DMO:\n\nWater column nitrate+nitrite d15N measurements\n\nDataset Description:\nThis data set includes water column nitrate+nitrite d15N measurements. These measurements were used together with measurements of the d15N of particulate nitrogen collected in floating sediment traps that were deployed for several days to calculate the relative contribution of subsurface nitrate and nitrogen from N2 fixation for supporting export production (\u201cd15N budgets\u201d). The results suggest that N2 fixation supported a majority of export at Long Duration (LD) stations A and B, and a minor fraction of export at LD C. The results at LD stations A and B are unique compared to other d15N budgets from the oligotrophic regions, whereas the results from LD C are similar to prior reports from the eastern tropical South Pacific as well as the North Pacific near Hawaii. Additionally, these data are compared with other metrics of N2 fixation made on the same cruise.",
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    "bureauCode": [
        "010:04"
    ],
    "modified": "2023-05-26T08:56:24.505Z",
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    "theme": "",
    "keyword": [
        "0278781",
        "278781",
        "DEPTH - OBSERVATION",
        "nitrate + nitrite content (concentration)",
        "SIGMA-THETA",
        "mass spectrometer",
        "chemical",
        "physical",
        "L'ATALANTE",
        "Florida State University",
        "Mediterranean Institute of Oceanography",
        "Oceanographic Laboratory of Villefranche-sur-Mer",
        "Biological and Chemical Oceanography Data Management Office",
        "Coral Sea",
        "South Pacific Ocean",
        "oceanography",
        "BCO-DMO > Biological and Chemical Oceanography Data Management Office",
        "FR\/CNRS\/UPMC\/LOV > Laboratoire d'Oc\u00e9anographie de Villefranche, Pierre & Marie Curie University, Centre National de la Recherche Scientifique, France",
        "Quantifying nitrogen fixation along unique geochemical gradients in the southwest Pacific Ocean (SW Pac N2 fixation)",
        "OUTPACE",
        "Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1537314",
        "cast",
        "date",
        "delta 15N NO3+NO2",
        "depth",
        "latitude",
        "longitude",
        "nitrate plus nitrite",
        "sigma-theta potential density",
        "station",
        "Date (UT as yyyymmdd)",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE",
        "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE",
        "EARTH SCIENCE > OCEANS > SALINITY\/DENSITY > DENSITY",
        "DEPTH BELOW SEA SURFACE",
        "LATITUDE",
        "LONGITUDE",
        "Cast",
        "Date",
        "Depth",
        "Latitude",
        "Longitude",
        "NO3_NO2",
        "NO3_NO2_d15N",
        "NO3_NO2_d15N_1_SD",
        "Sigma_theta",
        "Station",
        "Isotope-ratio Mass Spectrometer",
        "MASS SPECTROMETERS > MASS SPECTROMETERS",
        "Thermo Finnigan Delta V isotope ratio mass spectrometer.",
        "R\/V L'Atalante",
        "Ships",
        "L'ATALANTE (ICES code: 35A3)",
        "OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN",
        "South west Pacific between New Caledonia and Tahiti",
        "environment",
        "oceans"
    ]
}