Dataset: Nitrate N and O isotope ratios from CTD niskin depth profiles collected along section HLY1502-GN01 in the Western Arctic Ocean from August to October 2015

ValidatedFinal no updates expectedDOI: 10.26008/1912/bco-dmo.733109.2Version 2 (2020-07-09)Dataset Type:Cruise Results

Principal Investigator: Julie Granger (University of Connecticut)

BCO-DMO Data Manager: Shannon Rauch (Woods Hole Oceanographic Institution)

Program: U.S. GEOTRACES (U.S. GEOTRACES)

Project: U.S. Arctic GEOTRACES Study (GN01) (U.S. GEOTRACES Arctic)

Project: Collaborative Research: GEOTRACES Arctic Ocean section-Constraining Nitrogen Cycling in the western Arctic Ocean. (US GEOTRACES Arctic Nitrogen Flux)

Abstract

High precision measurements of Nitrogen (15N/14N) and Oxygen (18O/16O) isotope ratios in depth profiles along the GEOTRACES transect to the western Arctic Ocean (HLY1502-GN01) were made in order to trace nitrogen cycling in different parts of the basin and within different water masses. Nitrate isotope ratio analyses were performed by Richard Dabundo in the Granger Laboratory at the University of Connecticut.

Cite Dataset

Isotope ratios of N and O in nitrate from US GEOTRACES-Arctic cruise HLY1502 in 2015.

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Related Publications

Methods
Böhlke, J. K., Mroczkowski, S. J., & Coplen, T. B. (2003). Oxygen isotopes in nitrate: new reference materials for18O:17O:16O measurements and observations on nitrate-water equilibration. Rapid Communications in Mass Spectrometry, 17(16), 1835–1846. doi:10.1002/rcm.1123
Methods
Casciotti, K. L., Sigman, D. M., Hastings, M. G., Böhlke, J. K., & Hilkert, A. (2002). Measurement of the Oxygen Isotopic Composition of Nitrate in Seawater and Freshwater Using the Denitrifier Method. Analytical Chemistry, 74(19), 4905–4912. doi:10.1021/ac020113w
Methods
Gonfiantini, R., Stichler, W., & Rozanski, K. (1995). Standards and intercomparison materials distributed by the International Atomic Energy Agency for stable isotope measurements (IAEA-TECDOC--825). International Atomic Energy Agency (IAEA)
Methods
Granger, J., & Sigman, D. M. (2009). Removal of nitrite with sulfamic acid for nitrate N and O isotope analysis with the denitrifier method. Rapid Communications in Mass Spectrometry, 23(23), 3753–3762. doi:10.1002/rcm.4307
Methods
McIlvin, M. R., & Casciotti, K. L. (2011). Technical Updates to the Bacterial Method for Nitrate Isotopic Analyses. Analytical Chemistry, 83(5), 1850–1856. doi:10.1021/ac1028984

Granger, J. (2020) Nitrate N and O isotope ratios from CTD niskin depth profiles collected along section HLY1502-GN01 in the Western Arctic Ocean from August to October 2015. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 2) Version Date 2020-07-09 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.733109.2 [access date]

Terms of Use

This dataset is licensed under Creative Commons Attribution 4.0.


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