Regeneration of Fe(II) during EIFeX and SOFeX

P. L. Croot; K. Bluhm; C. Schlosser; P. Streu; E. Breitbarth; R. Frew; M. van Ardelan

doi:10.1029/2008GL035063

Regeneration of Fe(II) during EIFeX and SOFeX

P. L. Croot
, K. Bluhm
, C. Schlosser
, P. Streu
, E. Breitbarth
, R. Frew
, M. van Ardelan

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

43 Citations (Scopus)

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.

Original language	English
Article number	L19606
Journal	Geophysical Research Letters
Volume	35
Issue number	19
DOIs	https://doi.org/10.1029/2008GL035063
Publication status	Published - 16 Oct 2008
Externally published	Yes

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10.1029/2008GL035063

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title = "Regeneration of Fe(II) during EIFeX and SOFeX",

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.",

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AU - Croot, P. L.

AU - Bluhm, K.

AU - Schlosser, C.

AU - Streu, P.

AU - Breitbarth, E.

AU - Frew, R.

AU - van Ardelan, M.

PY - 2008/10/16

Y1 - 2008/10/16

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/57749192669

U2 - 10.1029/2008GL035063

DO - 10.1029/2008GL035063

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VL - 35

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 19

M1 - L19606

ER -

Regeneration of Fe(II) during EIFeX and SOFeX

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