{"references": ["Bendschneider, K., & Robinson, R. J. (1952). A new spectrophotometric method for the determination of nitrite in sea water (Technical Report No. 8). Office of Naval Research.", "Grasshoff, K., Kremling, K., & Ehrhardt, M. (Eds.). (1999). Methods of seawater analysis. 3rd Edition. John Wiley & Sons.", "Koroleff, F. (1971). ICES, C.M. 1971/C: 43.", "Stanley, M. A., Maxwell, J., Forrestal, M., Doherty, A. P., MacCraith, B. D., Diamond, D., & Vos, J. G. (1994). Comparison of the analytical capabilities of an amperometric and an optical sensor for the determination of nitrate in river and well water. Analytica Chimica Acta, 299(1), 81-90.", "Strickland, J. D. H., & Parsons, T. R. (1972). A practical handbook of seawater analysis. Fisheries Research Board of Canada.", "Thomas, Jenny, & Pina Estany, Carles. (2019). Quality-checked, one-minute resolution cruise track of the Antarctic Circumnavigation Expedition (ACE) undertaken during the austral summer of 2016/2017. (Version 1,0) [Data set]. Zenodo. http://doi.org/10.5281/zenodo.3483166", "Walton, D. W. H & Thomas, J. 2018. Cruise Report - Antarctic Circumnavigation Expedition (ACE) 20th December 2016 - 19th March 2017. Swiss Polar Institute, EPFL, Lausanne, Switzerland, 380 pages. DOI: 10.5281/zenodo.1443511", "Wendy, K. (2000). Determination of Nitrate/Nitrite in surface and wastewaters by flow injection analysis: Low flow method (QuikChem Method 10-107-04-1-A). Lachat Instruments."]}

Dataset abstract This dataset contains dissolved inorganic nitrate, nitrite, silicate and phosphate concentrations of seawater sampled during the Antarctic Circumnavigation Expedition (ACE) Legs 1-3. Water samples were collected from the underway seawater supply every 3 hours, preserved and analysed for dissolved inorganic nutrient concentrations using flow injection and colorimetric methods. These samples provide an estimate of the dissolved concentrations of inorganic macronutrients essential for phytoplankton growth. Dataset contents README.txt, metadata, text data_file_header.txt, metadata, text ace_uw_nutrients_20200527CURRSGCMR.csv, data file, comma-separated values

The Antarctic Circumnavigation Expedition was made possible by funding from the Swiss Polar Institute and Ferring Pharmaceuticals. This research was partially supported by the Australian Government through the Australian Research Council's Discovery Projects funding scheme (project DP DP160103387), a South African CSIR Parliamentary Grant (SNA2011112600001) and the CSIR Southern Ocean Carbon and Climate Observatory (SOCCO) programme. Sample analysis was performed by Dr Raymond Roman at the Marine Biogeochemistry Laboratory, Department of Oceanography, University of Cape Town.