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AMT25 (JR15001) nutrients

Title

AMT25 (JR15001) micro-molar nutrient measurements from CTD bottle samples.

Author(s) Woodward E.M.S. (1); Harris C. (1); Tuerena R. (2)

(1) Plymouth Marine Laboratory; (2) University of Liverpool Department of Earth, Ocean and Ecological Sciences

Subject oceans
Abstract

This dataset consists of 1148 measurements of micromolar nutrient concentrations made on samples collected during the Atlantic Meridional Transect programme cruise 25 (AMT25 JR15001) between 18th September and 2nd November 2015. The cruise track between UK and Chile passed through both north and south Atlantic gyres. This dataset contributes to the AMT time-series of core oceanographic measurements along a north-south transect of the Atlantic Ocean. Samples were collected on a daily basis at 10 to 18 depths, usually in the upper 500m but up to 5000m, using a CTD rosette with 24 x 20 L OTE (Ocean Test Equipment) bottles. Samples were analysed within 3-4 hours of collection for nitrate+nitrite, nitrite, phosphate and silicate using a 5-channel Bran and Luebbe AAIII segmented flow, colourimetric, auto-analyser (Brewer and Riley (1965) for nitrate, Grasshoff (1976) for nitrite, Kirkwood (1989) and Mantoura and Woodward (1983) for phosphate and silicate). Established, proven analytical protocols were used.

Temporal coverage 18 September 2015 - 02 November 2015
Spatial coverage Atlantic Ocean
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 - Natural Environment Research Council, UK
Publication date 03 December 2018
Digital Object Identifier (DOI) doi:10.5285/7c1ca6b7-90c1-0e11-e053-6c86abc0077e
Short DOI doi:10/cxt5
Citation text Woodward E.M.S.; Harris C.; Tuerena R.(2018). AMT25 (JR15001) micro-molar nutrient measurements from CTD bottle samples. British Oceanographic Data Centre - Natural Environment Research Council, UK. doi:10/cxt5.