Solubility of iron in the Southern Ocean
Iron solubility (cFeS) ranged from 0.4 to 1.5 nmol L−1, decreasing from south to north in three different Southern Ocean zones (the Coastal Zone, the Antarctic Zone, and the Polar Frontal Zone plus the Subantarctic Zone). This decrease was at times correlated with an increase in temperature. Organic...
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Online Access: | https://oceanrep.geomar.de/id/eprint/20147/ https://oceanrep.geomar.de/id/eprint/20147/1/Schlosser2012.pdf https://doi.org/10.4319/lo.2012.57.3.0684 |
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ftoceanrep:oai:oceanrep.geomar.de:20147 2023-05-15T13:47:42+02:00 Solubility of iron in the Southern Ocean Schlosser, Christian De la Rocha, C. L. Streu, Peter Croot, Peter 2012 text https://oceanrep.geomar.de/id/eprint/20147/ https://oceanrep.geomar.de/id/eprint/20147/1/Schlosser2012.pdf https://doi.org/10.4319/lo.2012.57.3.0684 en eng ASLO (Association for the Sciences of Limnology and Oceanography) https://oceanrep.geomar.de/id/eprint/20147/1/Schlosser2012.pdf Schlosser, C. , De la Rocha, C. L., Streu, P. and Croot, P. (2012) Solubility of iron in the Southern Ocean. Open Access Limnology and Oceanography, 57 (3). pp. 684-697. DOI 10.4319/lo.2012.57.3.0684 <https://doi.org/10.4319/lo.2012.57.3.0684>. doi:10.4319/lo.2012.57.3.0684 info:eu-repo/semantics/openAccess Article PeerReviewed 2012 ftoceanrep https://doi.org/10.4319/lo.2012.57.3.0684 2023-04-07T15:07:42Z Iron solubility (cFeS) ranged from 0.4 to 1.5 nmol L−1, decreasing from south to north in three different Southern Ocean zones (the Coastal Zone, the Antarctic Zone, and the Polar Frontal Zone plus the Subantarctic Zone). This decrease was at times correlated with an increase in temperature. Organic Fe solubility (cFeS,org), which was obtained by subtracting from total measured Fe solubility the solubility of inorganic species of iron (Fe) at the measurement temperature (20°C), ranged from 0.3 to 1.3 nmol L−1, representing an average of 32 ± 14% of the concentration of ligands in the dissolved size fraction as determined via competitive ligand exchange–absorptive cathodic stripping voltammetry (barring a handful of extremely high values from a transect run to the east of Prydz Bay). Values of cFeS were mainly lower than the predicted value for inorganic Fe solubility at the in situ temperature. Total in situ Fe solubility (cFeS,adj) was therefore estimated by adjusting for inorganic Fe solubility at in situ temperatures (between −2°C and +18°C). Because in situ temperatures in the Antarctic Circumpolar Current were mostly lower than +3°C, such cFeS,adj values, ranging from 0.5 to 1.8 nmol L−1, were roughly twice as large as cFeS,org. The adjustment relies heavily on model calculations of inorganic Fe solubility but, if correct, indicates that the bulk of the solubility of Fe in the cold waters of the Southern Ocean is tied to the solubility of inorganic Fe rather than to Fe ligands in the soluble size fraction. Article in Journal/Newspaper Antarc* Antarctic Prydz Bay Southern Ocean OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Antarctic Prydz Bay Southern Ocean The Antarctic Limnology and Oceanography 57 3 684 697 |
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English |
description |
Iron solubility (cFeS) ranged from 0.4 to 1.5 nmol L−1, decreasing from south to north in three different Southern Ocean zones (the Coastal Zone, the Antarctic Zone, and the Polar Frontal Zone plus the Subantarctic Zone). This decrease was at times correlated with an increase in temperature. Organic Fe solubility (cFeS,org), which was obtained by subtracting from total measured Fe solubility the solubility of inorganic species of iron (Fe) at the measurement temperature (20°C), ranged from 0.3 to 1.3 nmol L−1, representing an average of 32 ± 14% of the concentration of ligands in the dissolved size fraction as determined via competitive ligand exchange–absorptive cathodic stripping voltammetry (barring a handful of extremely high values from a transect run to the east of Prydz Bay). Values of cFeS were mainly lower than the predicted value for inorganic Fe solubility at the in situ temperature. Total in situ Fe solubility (cFeS,adj) was therefore estimated by adjusting for inorganic Fe solubility at in situ temperatures (between −2°C and +18°C). Because in situ temperatures in the Antarctic Circumpolar Current were mostly lower than +3°C, such cFeS,adj values, ranging from 0.5 to 1.8 nmol L−1, were roughly twice as large as cFeS,org. The adjustment relies heavily on model calculations of inorganic Fe solubility but, if correct, indicates that the bulk of the solubility of Fe in the cold waters of the Southern Ocean is tied to the solubility of inorganic Fe rather than to Fe ligands in the soluble size fraction. |
format |
Article in Journal/Newspaper |
author |
Schlosser, Christian De la Rocha, C. L. Streu, Peter Croot, Peter |
spellingShingle |
Schlosser, Christian De la Rocha, C. L. Streu, Peter Croot, Peter Solubility of iron in the Southern Ocean |
author_facet |
Schlosser, Christian De la Rocha, C. L. Streu, Peter Croot, Peter |
author_sort |
Schlosser, Christian |
title |
Solubility of iron in the Southern Ocean |
title_short |
Solubility of iron in the Southern Ocean |
title_full |
Solubility of iron in the Southern Ocean |
title_fullStr |
Solubility of iron in the Southern Ocean |
title_full_unstemmed |
Solubility of iron in the Southern Ocean |
title_sort |
solubility of iron in the southern ocean |
publisher |
ASLO (Association for the Sciences of Limnology and Oceanography) |
publishDate |
2012 |
url |
https://oceanrep.geomar.de/id/eprint/20147/ https://oceanrep.geomar.de/id/eprint/20147/1/Schlosser2012.pdf https://doi.org/10.4319/lo.2012.57.3.0684 |
geographic |
Antarctic Prydz Bay Southern Ocean The Antarctic |
geographic_facet |
Antarctic Prydz Bay Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Prydz Bay Southern Ocean |
genre_facet |
Antarc* Antarctic Prydz Bay Southern Ocean |
op_relation |
https://oceanrep.geomar.de/id/eprint/20147/1/Schlosser2012.pdf Schlosser, C. , De la Rocha, C. L., Streu, P. and Croot, P. (2012) Solubility of iron in the Southern Ocean. Open Access Limnology and Oceanography, 57 (3). pp. 684-697. DOI 10.4319/lo.2012.57.3.0684 <https://doi.org/10.4319/lo.2012.57.3.0684>. doi:10.4319/lo.2012.57.3.0684 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.4319/lo.2012.57.3.0684 |
container_title |
Limnology and Oceanography |
container_volume |
57 |
container_issue |
3 |
container_start_page |
684 |
op_container_end_page |
697 |
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1766247730159550464 |