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 analyzed using a sea FAST -pico™ coupled to an Element XR sector field inductively coupled plasma mass spectrometer (SF-ICP-MS) and provided interesting insights into the Fe sources in...
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Online Access: | https://doi.org/10.5194/bg-17-917-2020 https://www.biogeosciences.net/17/917/2020/ |
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ftcopernicus:oai:publications.copernicus.org:bg67531 2023-05-15T16:00:40+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 Lacan, François Menzel Barraqueta, Jan-Lukas Pereira-Contreira, Leonardo Shelley, Rachel Lherminier, Pascale Sarthou, Géraldine 2020-02-21 application/pdf https://doi.org/10.5194/bg-17-917-2020 https://www.biogeosciences.net/17/917/2020/ eng eng doi:10.5194/bg-17-917-2020 https://www.biogeosciences.net/17/917/2020/ eISSN: 1726-4189 Text 2020 ftcopernicus https://doi.org/10.5194/bg-17-917-2020 2020-02-24T15:41:59Z Dissolved Fe (DFe) samples from the GEOVIDE voyage (GEOTRACES GA01, May–June 2014) in the North Atlantic Ocean were analyzed using a sea FAST -pico™ coupled to an Element XR sector field inductively coupled plasma mass spectrometer (SF-ICP-MS) and provided interesting insights into the Fe sources in this area. Overall, DFe concentrations ranged from 0.09±0.01 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. Deep winter convection occurring the previous winter provided iron-to-nitrate ratios sufficient to sustain phytoplankton growth and lead to relatively elevated DFe concentrations within subsurface waters of the Irminger Sea. 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 in the Denmark Strait Overflow Water and the Polar Intermediate Water. Finally, the nepheloid layers located in the different basins and at the Iberian Margin were found to act as either a source or a sink of DFe depending on the nature of particles, with organic particles likely releasing DFe and Mn particle scavenging DFe. 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 Biogeosciences 17 4 917 943 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
Dissolved Fe (DFe) samples from the GEOVIDE voyage (GEOTRACES GA01, May–June 2014) in the North Atlantic Ocean were analyzed using a sea FAST -pico™ coupled to an Element XR sector field inductively coupled plasma mass spectrometer (SF-ICP-MS) and provided interesting insights into the Fe sources in this area. Overall, DFe concentrations ranged from 0.09±0.01 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. Deep winter convection occurring the previous winter provided iron-to-nitrate ratios sufficient to sustain phytoplankton growth and lead to relatively elevated DFe concentrations within subsurface waters of the Irminger Sea. 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 in the Denmark Strait Overflow Water and the Polar Intermediate Water. Finally, the nepheloid layers located in the different basins and at the Iberian Margin were found to act as either a source or a sink of DFe depending on the nature of particles, with organic particles likely releasing DFe and Mn particle scavenging DFe. |
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 Lacan, François 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 Lacan, François 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 Lacan, François 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 |
2020 |
url |
https://doi.org/10.5194/bg-17-917-2020 https://www.biogeosciences.net/17/917/2020/ |
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-17-917-2020 https://www.biogeosciences.net/17/917/2020/ |
op_doi |
https://doi.org/10.5194/bg-17-917-2020 |
container_title |
Biogeosciences |
container_volume |
17 |
container_issue |
4 |
container_start_page |
917 |
op_container_end_page |
943 |
_version_ |
1766396677913051136 |