Regeneration of Fe(II) during EIFeX and SOFeX.

Croot, Peter, Bluhm, Katrin, Schlosser, Christian , Streu, Peter, Breitbarth, Eike, Frew, R. and Van Ardelan, M. (2008) Regeneration of Fe(II) during EIFeX and SOFeX. Open Access Geophysical Research Letters, 35 . L19606. DOI 10.1029/2008GL035063.

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Abstract

Investigations into Fe(II) cycling during two Southern Ocean mesoscale iron enrichment experiments, SOFeX and EIFeX, clearly show the importance of Fe(II) to iron speciation during these experiments. In both cases the added Fe(II) persisted significantly longer than its expected oxidation time indicating a significant Fe reduction process at work. During EIFeX diel studies showed a strong photochemically induced cycle in Fe(II) production in sunlit surface waters. Our results suggest that the photochemical cycling of iron may also be important in unfertilized waters of the Southern Ocean.

Document Type: Article
Keywords: iron enrichment; Southern Ocean; photochemistry; primary productivity; diatoms
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-CH Chemical Oceanography
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1029/2008GL035063
ISSN: 0094-8276
Projects: Future Ocean, SOPRAN
Expeditions/Models/Experiments:
Date Deposited: 22 Jan 2009 16:59
Last Modified: 08 Nov 2017 13:34
URI: http://oceanrep.geomar.de/id/eprint/4230

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