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 aseaFAST-pico™ coupled to an Element XR sector fieldinductively coupled plasma mass spectrometer (SF-ICP-MS) and provided interestinginsights into the Fe sources in this...
Published in: | Biogeosciences |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus GmbH
2020
|
Subjects: | |
Online Access: | https://eprints.utas.edu.au/34473/ https://eprints.utas.edu.au/34473/1/137715%20-%20Dissolved%20iron%20in%20the%20North%20Atlantic%20Ocean%20and%20Labrador%20Sea.pdf |
id |
ftunivtasmania:oai:eprints.utas.edu.au:34473 |
---|---|
record_format |
openpolar |
spelling |
ftunivtasmania:oai:eprints.utas.edu.au:34473 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, M Planquette, H Bowie, AR van der Merwe, P Gallinari, M de Gesincourt, FD Germain, Y Gourain, A Benetti, M Reverdin, G Treguer, P Boutorh, J Cheize, M Lacan, F Barraqueta, J-LM Pereira-Contreira, L Shelley, R Lherminier, P Sarthou, G 2020 application/pdf https://eprints.utas.edu.au/34473/ https://eprints.utas.edu.au/34473/1/137715%20-%20Dissolved%20iron%20in%20the%20North%20Atlantic%20Ocean%20and%20Labrador%20Sea.pdf en eng Copernicus GmbH https://eprints.utas.edu.au/34473/1/137715%20-%20Dissolved%20iron%20in%20the%20North%20Atlantic%20Ocean%20and%20Labrador%20Sea.pdf Tonnard, M, Planquette, H, Bowie, AR orcid:0000-0002-5144-7799 , van der Merwe, P orcid:0000-0002-7428-8030 , Gallinari, M, de Gesincourt, FD, Germain, Y, Gourain, A, Benetti, M, Reverdin, G, Treguer, P, Boutorh, J, Cheize, M, Lacan, F, Barraqueta, J-LM, Pereira-Contreira, L, Shelley, R, Lherminier, P and Sarthou, G 2020 , 'Dissolved iron in the North Atlantic Ocean and Labrador Sea along the GEOVIDE section (GEOTRACES section GA01)' , Biogeosciences, vol. 17 , 917–943 , doi:10.5194/bg-17-917-2020 <http://dx.doi.org/10.5194/bg-17-917-2020>. dissolved iron North Atlantic Ocean Labrador Sea GEOVIDE section GEOTRACES Article PeerReviewed 2020 ftunivtasmania https://doi.org/10.5194/bg-17-917-2020 2021-09-20T22:18:57Z Dissolved Fe (DFe) samples from the GEOVIDE voyage (GEOTRACES GA01, May–June 2014) in the North Atlantic Ocean were analyzed using aseaFAST-pico™ coupled to an Element XR sector fieldinductively coupled plasma mass spectrometer (SF-ICP-MS) and provided interestinginsights into the Fe sources in this area. Overall, DFe concentrations rangedfrom 0.09±0.01 to 7.8±0.5 nmol L−1.Elevated DFe concentrations were observed above the Iberian, Greenland, andNewfoundland margins likely due to riverine inputs from the Tagus River,meteoric water inputs, and sedimentary inputs. Deep winter convectionoccurring the previous winter provided iron-to-nitrate ratios sufficient tosustain phytoplankton growth and lead to relatively elevated DFeconcentrations within subsurface waters of the Irminger Sea. Increasing DFeconcentrations along the flow path of the Labrador Sea Water were attributedto sedimentary inputs from the Newfoundland Margin. Bottom waters from theIrminger Sea displayed high DFe concentrations likely due to the dissolutionof Fe-rich particles in the Denmark Strait Overflow Water and the PolarIntermediate Water. Finally, the nepheloid layers located in the differentbasins and at the Iberian Margin were found to act as either a source or asink of DFe depending on the nature of particles, with organic particleslikely releasing DFe and Mn particle scavenging DFe. Article in Journal/Newspaper Denmark Strait Greenland Labrador Sea Newfoundland North Atlantic University of Tasmania: UTas ePrints Newfoundland Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Biogeosciences 17 4 917 943 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
dissolved iron North Atlantic Ocean Labrador Sea GEOVIDE section GEOTRACES |
spellingShingle |
dissolved iron North Atlantic Ocean Labrador Sea GEOVIDE section GEOTRACES Tonnard, M Planquette, H Bowie, AR van der Merwe, P Gallinari, M de Gesincourt, FD Germain, Y Gourain, A Benetti, M Reverdin, G Treguer, P Boutorh, J Cheize, M Lacan, F Barraqueta, J-LM Pereira-Contreira, L Shelley, R Lherminier, P Sarthou, G Dissolved iron in the North Atlantic Ocean and Labrador Sea along the GEOVIDE section (GEOTRACES section GA01) |
topic_facet |
dissolved iron North Atlantic Ocean Labrador Sea GEOVIDE section GEOTRACES |
description |
Dissolved Fe (DFe) samples from the GEOVIDE voyage (GEOTRACES GA01, May–June 2014) in the North Atlantic Ocean were analyzed using aseaFAST-pico™ coupled to an Element XR sector fieldinductively coupled plasma mass spectrometer (SF-ICP-MS) and provided interestinginsights into the Fe sources in this area. Overall, DFe concentrations rangedfrom 0.09±0.01 to 7.8±0.5 nmol L−1.Elevated DFe concentrations were observed above the Iberian, Greenland, andNewfoundland margins likely due to riverine inputs from the Tagus River,meteoric water inputs, and sedimentary inputs. Deep winter convectionoccurring the previous winter provided iron-to-nitrate ratios sufficient tosustain phytoplankton growth and lead to relatively elevated DFeconcentrations within subsurface waters of the Irminger Sea. Increasing DFeconcentrations along the flow path of the Labrador Sea Water were attributedto sedimentary inputs from the Newfoundland Margin. Bottom waters from theIrminger Sea displayed high DFe concentrations likely due to the dissolutionof Fe-rich particles in the Denmark Strait Overflow Water and the PolarIntermediate Water. Finally, the nepheloid layers located in the differentbasins and at the Iberian Margin were found to act as either a source or asink of DFe depending on the nature of particles, with organic particleslikely releasing DFe and Mn particle scavenging DFe. |
format |
Article in Journal/Newspaper |
author |
Tonnard, M Planquette, H Bowie, AR van der Merwe, P Gallinari, M de Gesincourt, FD Germain, Y Gourain, A Benetti, M Reverdin, G Treguer, P Boutorh, J Cheize, M Lacan, F Barraqueta, J-LM Pereira-Contreira, L Shelley, R Lherminier, P Sarthou, G |
author_facet |
Tonnard, M Planquette, H Bowie, AR van der Merwe, P Gallinari, M de Gesincourt, FD Germain, Y Gourain, A Benetti, M Reverdin, G Treguer, P Boutorh, J Cheize, M Lacan, F Barraqueta, J-LM Pereira-Contreira, L Shelley, R Lherminier, P Sarthou, G |
author_sort |
Tonnard, M |
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) |
publisher |
Copernicus GmbH |
publishDate |
2020 |
url |
https://eprints.utas.edu.au/34473/ https://eprints.utas.edu.au/34473/1/137715%20-%20Dissolved%20iron%20in%20the%20North%20Atlantic%20Ocean%20and%20Labrador%20Sea.pdf |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Newfoundland Greenland Irminger Sea |
geographic_facet |
Newfoundland Greenland Irminger Sea |
genre |
Denmark Strait Greenland Labrador Sea Newfoundland North Atlantic |
genre_facet |
Denmark Strait Greenland Labrador Sea Newfoundland North Atlantic |
op_relation |
https://eprints.utas.edu.au/34473/1/137715%20-%20Dissolved%20iron%20in%20the%20North%20Atlantic%20Ocean%20and%20Labrador%20Sea.pdf Tonnard, M, Planquette, H, Bowie, AR orcid:0000-0002-5144-7799 , van der Merwe, P orcid:0000-0002-7428-8030 , Gallinari, M, de Gesincourt, FD, Germain, Y, Gourain, A, Benetti, M, Reverdin, G, Treguer, P, Boutorh, J, Cheize, M, Lacan, F, Barraqueta, J-LM, Pereira-Contreira, L, Shelley, R, Lherminier, P and Sarthou, G 2020 , 'Dissolved iron in the North Atlantic Ocean and Labrador Sea along the GEOVIDE section (GEOTRACES section GA01)' , Biogeosciences, vol. 17 , 917–943 , doi:10.5194/bg-17-917-2020 <http://dx.doi.org/10.5194/bg-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_ |
1766396669836918784 |