Concentrations of chlorophyll a, phaeopigments, and particulate matter during the iron fertilization experiment EIFEX in 2004 ...

Here we present concentrations of chlorophyll a, phaeopigments, particulate organic carbon and nitrogen from water samples collected at discrete depths with a CTD-rosette during the European Iron Fertilization Experiment (EIFEX). The experiment was carried out from February 11 to March 20, 2004 in t...

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Bibliographic Details
Main Authors: 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
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
Chlorophyll a
Phaeopigments
Phosphorus, organic, particulate
Nitrogen, organic, particulate
Carbon, organic, particulate
Biogenic silica
Position
CTD/Rosette
Fluorometer, Turner Designs, 10-AU; According to Knap et al. 1996
Colorimetry according to Hansen and Koroleff 1999
Elemental analyzer; Decarbonation and preservation method according to Lorrain et al. 2003
Wet alkaline digestion method according to Müller and Schneider 1993
ANT-XXI/3
Polarstern
Antarc*
Antarctic
Online Access:https://dx.doi.org/10.1594/pangaea.954829
https://doi.pangaea.de/10.1594/PANGAEA.954829
Description
Summary:Here we present concentrations of chlorophyll a, phaeopigments, particulate organic carbon and nitrogen from water samples collected at discrete depths 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.Chlorophyll concentrations were determined by fluorometry using a Turner Design Model 10-AU digital fluorometer. Sampling, measurements and calibration of the fluorometer was carried out following the JGOFS protocol procedure (Knap et al, 1996). Results of the fluorometer calibration diverged by 5% between beginning and end of the cruise. Chlorophyll a content was calculated using average parameter values from the two calibrations. Measurement uncertainty was estimated ...

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