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Nitrate isotope measurements from CTD niskin depth profiles from cruise JR16006 in the Barents Sea during summer 2017

Title

Nitrate isotope measurements from CTD niskin depth profiles from Changing Arctic Ocean cruise JR16006 in the Barents Sea during summer 2017.

Author(s) Tuerena R. (1); Ganeshram R. (1)

(1) University of Edinburgh School of GeoSciences

Subject oceans
Abstract

Nitrate isotope samples were collected onboard the RRS James Clark Ross in the Barents Sea from 30/06/2017-08/08/2017 as part of the Changing Arctic Oceans project. Seawater samples were filtered inline from the Niskin bottles, and frozen at -20°C until analysis on land. Samples were measured for δ15N-NO3 and δ18O-NO3 of nitrate using the Denitrifier method and bacterial strain P. aureofaciens. Samples were corrected using international reference standards IAEA-N3 and USGS-34 and an internal standard of North Atlantic Deep Water was run with each batch to check for inter-run comparability. Final values were calculated using the correction scheme of Weigand et al., (2016) with reproducibility of 0.1 and 0.3‰ for δ15N-NO3 and δ18O respectively.

Temporal coverage 30 June 2017 - 08 August 2017
Spatial coverage Barents Sea
File format Delimited
Language English
Discovery metadata record Link to the related European Directory of Marine Environmental Data (EDMED) record
Publisher British Oceanographic Data Centre, National Oceanography Centre, NERC, UK
Publication date 03 November 2020
Digital Object Identifier (DOI) doi:10.5285/b2e5007e-f3a8-429c-e053-6c86abc0ba4f
Short DOI doi:10/fg27
Citation text Tuerena R.; Ganeshram R.(2020). Nitrate isotope measurements from CTD niskin depth profiles from Changing Arctic Ocean cruise JR16006 in the Barents Sea during summer 2017. British Oceanographic Data Centre, National Oceanography Centre, NERC, UK. doi:10/fg27.