| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Dissolved iron in the North Atlantic Ocean and Labrador Sea along the GEOVIDE section (GEOTRACES section GA01)
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| Autores: |
Tonnard, Manon
Planquette, Hélène
Bowie, Andrew R.
Van Der Merwe, Pier
Gallinari, Morgane
Desprez De Gésincourt, Floriane
Germain, Yoan
Gourain, Arthur
Benetti, Marion
Reverdin, Gilles
Tréguer, Paul
Boutorh, Julia
Cheize, Marie
Menzel Barraqueta, Jan-lukas
Pereira-contreira, Leonardo
Shelley, Rachel
Lherminier, Pascale
Sarthou, Géraldine
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| Data: |
2020-02
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| Ano: |
2020
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| Resumo: |
Dissolved Fe (DFe) samples from the GEOVIDE voyage (GEOTRACES GA01, May–June 2014) in the North Atlantic Ocean were analysed using a SeaFAST-picoTM coupled to an Element XR HR-ICP-MS and provided interesting insights on the Fe sources in this area. Overall, DFe concentrations ranged from 0.09 ± 0.01 nmol L−1 to 7.8 ± 0.5 nmol L−1. Elevated DFe concentrations were observed above the Iberian, Greenland and Newfoundland Margins likely due to riverine inputs from the Tagus River, meteoric water inputs and sedimentary inputs. Air-sea interactions were suspected to be responsible for the increase in DFe concentrations within subsurface waters of the Irminger Sea due to deep convection occurring the previous winter, that provided iron-to-nitrate ratios sufficient to sustain phytoplankton growth. Increasing DFe concentrations along the flow path of the Labrador Sea Water were attributed to sedimentary inputs from the Newfoundland Margin. Bottom waters from the Irminger Sea displayed high DFe concentrations likely due to the dissolution of Fe-rich particles from the Denmark Strait Overflow Water and the Polar Intermediate Water. Finally, the nepheloid layers were found to act as either a source or a sink of DFe depending on the nature of particles.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00441/55233/56714.pdf
https://archimer.ifremer.fr/doc/00441/55233/56715.pdf
https://archimer.ifremer.fr/doc/00441/55233/70966.pdf
https://archimer.ifremer.fr/doc/00441/55233/70967.pdf
DOI:10.5194/bg-2018-147
https://archimer.ifremer.fr/doc/00441/55233/
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| Editor: |
Copernicus GmbH
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| Formato: |
application/pdf
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| Fonte: |
Biogeosciences (1726-4170) (Copernicus GmbH), 2020-02 , Vol. 17 , N. 4 , P. 917-943
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| Direitos: |
Author(s) 2018. This work is distributed under the Creative Commons Attribution 4.0 License.
info:eu-repo/semantics/openAccess
restricted use
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