Klaas, Christine; Bellerby, Richard G J; Berg, Gry Mine; Neill, Craig; Terbrüggen, Anja; Webb, Adrian; Smetacek, Victor (2023): Concentrations of macronutrients, dissolved organic and inorganic compounds during the iron fertilization experiment EIFEX in 2004 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.954758
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Abstract:
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 inorganic carbon was measured by coulometric titration (Johnson et al., 1987) using a SOMMA system with gas loop calibration with a reproducibility of 2 mmol/kg. DIC was calibrated against certified reference materials from Andrew Dickson at Scripps Institution of Oceanography (SIO).
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Related to:
Klaas, Christine; Assmy, Philipp; Benner, Ina; Berg, Gry Mine; Mills, Matthew M; Passow, Uta; Schmidt, Maike M; Terbrüggen, Anja; Wolf-Gladrow, Dieter A; Smetacek, Victor (2023): Concentrations of chlorophyll a, phaeopigments, and particulate matter during the iron fertilization experiment EIFEX in 2004. PANGAEA, https://doi.org/10.1594/PANGAEA.954829
Smetacek, Victor; Klaas, Christine; Strass, Volker H; Assmy, Philipp; Montresor, Marina; Cisewski, Boris; Savoye, Nicolas; Webb, Adrian; d'Ovidio, Francesco; Arrieta, Jesús M; Bathmann, Ulrich; Bellerby, Richard G J; Berg, Gry Mine; Croot, Peter L; Gonzalez, Santiago; Henjes, Joachim; Herndl, Gerhard J; Hoffmann, Linn; Leach, Harry; Losch, Martin; Mills, Matthew M; Neill, Craig; Peeken, Ilka; Röttgers, Rüdiger; Sachs, Oliver; Sauter, Eberhard-Jürgen; Schmidt, Maike M; Schwarz, Jill Nicola; Terbrüggen, Anja; Wolf-Gladrow, Dieter A (2012): Deep carbon export from a Southern Ocean iron-fertilized diatom bloom. Nature, 487(7407), 313-319, https://doi.org/10.1038/nature11229
References:
Johnson, Kenneth M; Sieburth, J Mc N; Williams, P J leB; Brandstrom, L (1987): Coulometric total carbon dioxide analysis for marine studies: Automation and calibration. Marine Chemistry, 21(2), 117-133, https://doi.org/10.1016/0304-4203(87)90033-8
Skoog, Annelie; Thomas, David N; Lara, Rubén; Richter, Klaus-Uwe (1997): Methodological investigations on DOC determinations by the HTCO method. Marine Chemistry, 56(1-2), 39-44, https://doi.org/10.1016/S0304-4203(96)00084-9
Valderrama, Jorge C (1981): The simultaneous analysis of total nitrogen and total phosphorus in natural waters. Marine Chemistry, 10(2), 109-122, https://doi.org/10.1016/0304-4203(81)90027-X
Coverage:
Median Latitude: -49.345243 * Median Longitude: 2.173521 * South-bound Latitude: -49.954500 * West-bound Longitude: 1.839730 * North-bound Latitude: -49.000800 * East-bound Longitude: 2.600060
Date/Time Start: 2004-02-11T18:54:00 * Date/Time End: 2004-03-20T05:49:00
Minimum DEPTH, water: 5 m * Maximum DEPTH, water: 400 m
Event(s):
PS65/424-3 * Latitude: -49.399200 * Longitude: 2.251900 * Date/Time: 2004-02-11T18:54:00 * Elevation: -4092.0 m * Location: South Atlantic Ocean * Campaign: ANT-XXI/3 (PS65 EIFEX) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO) * Comment: INST.:AWI; CTD-SN:T2685-C2678
PS65/424-8 * Latitude: -49.405200 * Longitude: 2.260000 * Date/Time: 2004-02-11T21:11:00 * Elevation: -4450.0 m * Location: South Atlantic Ocean * Campaign: ANT-XXI/3 (PS65 EIFEX) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO) * Comment: INST.:AWI; CTD-SN:T2685-C2678
PS65/426-1 * Latitude: -49.481800 * Longitude: 2.265100 * Date/Time: 2004-02-13T12:38:00 * Elevation: -3993.0 m * Location: South Atlantic Ocean * Campaign: ANT-XXI/3 (PS65 EIFEX) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO) * Comment: INST.:AWI; CTD-SN:T2685-C2678
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
9707 data points
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