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OAS accession Detail for 0278566
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| accessions_id: | 0278566 | archive |
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| Title: | Dissolved and sinking particulate organic nitrogen data from a large volume mesocosm experiment in the Noumea Lagoon, New Caledonia, measured from January to February 2013 (NCEI Accession 0278566) |
| Abstract: | This dataset contains chemical data collected at shoreside New Caledonia during deployment VAHINE from 2013-01-14 to 2013-02-06. These data include Dissolved Organic Nitrogen and Nitrogen. The instruments used to collect these data include Chemiluminescence NOx Analyzer, Elemental Analyzer, and Isotope-ratio Mass Spectrometer. These data were collected by Angela N. Knapp of Florida State University 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 2019-11-21. The following is the text of the dataset description provided by BCO-DMO: Dataset Description: These data were published in Knapp et al., 2016, Biogeosciences, Supplementary Table 1. |
| Date received: | 20191121 |
| Start date: | 20130114 |
| End date: | 20130206 |
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| West boundary: | 166.4454 |
| East boundary: | 166.4454 |
| North boundary: | -22.48092 |
| South boundary: | -22.48092 |
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| Submitting institution: | Biological and Chemical Oceanography Data Management Office |
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| Supplementary information: | Acquisition Description: Sampling and analytical procedures: The concentration of total nitrogen (TN) for samples was determined by persulfate oxidation (Solorzano and Sharp, 1980) with adaptations (Knapp et al., 2005), and the resulting NO3- was measured by chemiluminescence (Braman and Hendrix, 1989). DON concentration was determined by subtracting the concentrations of PNsusp, NH4+, and NO3-+NO2- (reported in Berthelot et al., 2015, Biogeosciences) from the measured TN concentration of each sample with a propagated error of +/- 0.5 μM. The d15N of the resulting NO3- was measured using the denitrifier method (Casciotti et al., 2002; McIlvin and Casciotti, 2011; Sigman et al., 2001). The d15N of PNsink was measured using a Thermo Scientific Flash 2000 Elemental Analyzer coupled with a Delta Plus Thermo Scientific mass spectrometer. The average standard deviation for individual DON concentration measurements was +/- 0.3 µM. DON concentration was determined by subtracting the concentrations of PNsusp, NH4+, and NO3-+NO2- (reported in Berthelot et al., 2015, Biogeosciences) from the measured TN concentration of each sample with a propagated error of +/- 0.5 μM. The d15N of TN was determined via persulfate oxidation of TN to NO3- (Knapp et al., 2005) and subsequent analysis of NO3- d15N by the denitrifier method, with a propagated error for DON d15N calculated using a Monte Carlo method (Press et al., 1992) of +/- 0.6‰. Samples were calibrated with IAEA N3 and USGS 34 NO3- d15N isotopic reference materials as described in McIlvin and Casciotti, 2011. The d15N of PNsink was measured using a Thermo Scientific Flash 2000 Elemental Analyzer coupled with a Delta Plus Thermo Scientific mass spectrometer. The average standard deviation for standards was +/- 0.06‰. |
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| Metadata version: | 1 |
| Keydate: | 2023-05-21 04:48:59+00 |
| Editdate: | 2023-05-21 04:49:18+00 |