Dissolved iron in the North Atlantic Ocean and Labrador Sea along the GEOVIDE section (GEOTRACES section GA01)
Dissolved Fe (DFe) samples from the GEOVIDE voyage (GEOTRACES GA01, May–June 2014) in the North Atlantic Ocean were analysed using a Sea FAST -pico TM 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...
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ftcopernicus:oai:publications.copernicus.org:bgd67531 2023-05-15T16:00:39+02:00 Dissolved iron in the North Atlantic Ocean and Labrador Sea along the GEOVIDE section (GEOTRACES section GA01) Tonnard, Manon Planquette, Hélène Bowie, Andrew R. 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 2018-10-02 application/pdf https://doi.org/10.5194/bg-2018-147 https://www.biogeosciences-discuss.net/bg-2018-147/ eng eng doi:10.5194/bg-2018-147 https://www.biogeosciences-discuss.net/bg-2018-147/ eISSN: 1726-4189 Text 2018 ftcopernicus https://doi.org/10.5194/bg-2018-147 2019-12-24T09:50:30Z Dissolved Fe (DFe) samples from the GEOVIDE voyage (GEOTRACES GA01, May–June 2014) in the North Atlantic Ocean were analysed using a Sea FAST -pico TM 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. Text Denmark Strait Greenland Labrador Sea Newfoundland North Atlantic Copernicus Publications: E-Journals Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Newfoundland |
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Open Polar |
collection |
Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
Dissolved Fe (DFe) samples from the GEOVIDE voyage (GEOTRACES GA01, May–June 2014) in the North Atlantic Ocean were analysed using a Sea FAST -pico TM 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. |
format |
Text |
author |
Tonnard, Manon Planquette, Hélène Bowie, Andrew R. 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 |
spellingShingle |
Tonnard, Manon Planquette, Hélène Bowie, Andrew R. 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 Dissolved iron in the North Atlantic Ocean and Labrador Sea along the GEOVIDE section (GEOTRACES section GA01) |
author_facet |
Tonnard, Manon Planquette, Hélène Bowie, Andrew R. 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 |
author_sort |
Tonnard, Manon |
title |
Dissolved iron in the North Atlantic Ocean and Labrador Sea along the GEOVIDE section (GEOTRACES section GA01) |
title_short |
Dissolved iron in the North Atlantic Ocean and Labrador Sea along the GEOVIDE section (GEOTRACES section GA01) |
title_full |
Dissolved iron in the North Atlantic Ocean and Labrador Sea along the GEOVIDE section (GEOTRACES section GA01) |
title_fullStr |
Dissolved iron in the North Atlantic Ocean and Labrador Sea along the GEOVIDE section (GEOTRACES section GA01) |
title_full_unstemmed |
Dissolved iron in the North Atlantic Ocean and Labrador Sea along the GEOVIDE section (GEOTRACES section GA01) |
title_sort |
dissolved iron in the north atlantic ocean and labrador sea along the geovide section (geotraces section ga01) |
publishDate |
2018 |
url |
https://doi.org/10.5194/bg-2018-147 https://www.biogeosciences-discuss.net/bg-2018-147/ |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Greenland Irminger Sea Newfoundland |
geographic_facet |
Greenland Irminger Sea Newfoundland |
genre |
Denmark Strait Greenland Labrador Sea Newfoundland North Atlantic |
genre_facet |
Denmark Strait Greenland Labrador Sea Newfoundland North Atlantic |
op_source |
eISSN: 1726-4189 |
op_relation |
doi:10.5194/bg-2018-147 https://www.biogeosciences-discuss.net/bg-2018-147/ |
op_doi |
https://doi.org/10.5194/bg-2018-147 |
_version_ |
1766396670015176704 |