Concentrations of macronutrients, dissolved organic and inorganic compounds during the iron fertilization experiment EIFEX in 2004 ...

• Main Authors: Klaas, Christine, Bellerby, Richard G J, Berg, Gry Mine, Neill, Craig, Terbrüggen, Anja, Webb, Adrian, Smetacek, Victor
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: ANT XXI/3; dissolved in organic carbon DIC; Dissolved Organic Matter; particulate organic matter; Event label; DATE/TIME; LATITUDE; LONGITUDE; Station label; Cast number; Duration, number of days; DEPTH, water; Silicate; Nitrite; Nitrate; Ammonium; Phosphate; Carbon, organic, dissolved; Nitrogen, organic, dissolved; Carbon, inorganic, dissolved; Position; CTD/Rosette; Go-Flo bottles; Auto-analyzer II, Technicon; Total organic carbon analyzer, Schimadzu, TOC-VCPH/CPN; HTCO method according to Skoog et al. 1997; Continuous flow analyser, Alliance Instruments, Evolution; Method according to Valderrama 1981; Coulometric titration according to Johnson et al. 1987; ANT-XXI/3; Polarstern; Antarc*; Antarctic
• Online Access: https://dx.doi.org/10.1594/pangaea.954758; https://doi.pangaea.de/10.1594/PANGAEA.954758

Here we present the concentrations of inorganic nutrients, dissolved organic carbon, nitrogen and phophorus and dissolved inorganic carbon (DIC) from discrete water samples collected with a CTD-rosette during the European Iron Fertilization Experiment (EIFEX). The experiment was carried out from February 11 to March 20, 2004 in the 60-km diameter, rotating core of an eddy, formed by a meander of the Antarctic Polar Front (centred at around 49°10' S and 2°10' E). Samples were taken within the eddy inside and outside the fertilized patch, and in a few cases outside the eddy. Inorganic nutrients (silicate, phosphate, nitrate, nitrite and ammonium) were measured with a Technicon Autoanalyser II system using standard methods. Dissolved organic carbon (DOC) was determined by high temperature combustion using a TOC-VCPH/CPN (Shimadzu) according to Skoog et al. (1997). Dissolved organic nitrogen (DON) was measured on an Evolution continuous flow analyser (Alliance Instruments) after Valderrama (1981). Dissolved ...