Aluminium in the North Atlantic Ocean and the Labrador Sea (GEOTRACES GA01 section): roles of continental inputs and biogenic particle removal
<jats:p>Abstract. The distribution of dissolved aluminium (dAl) in the water column of the North Atlantic and Labrador Sea was studied along GEOTRACES section GA01 to unravel the sources and sinks of this element. Surface water dAl concentrations were low (median of 2.5 nM) due to low aerosol...
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ftunivliverpool:oai:livrepository.liverpool.ac.uk:3074644 2023-05-15T16:29:44+02:00 Aluminium in the North Atlantic Ocean and the Labrador Sea (GEOTRACES GA01 section): roles of continental inputs and biogenic particle removal Menzel Barraqueta, Jan-Lukas Schlosser, Christian Planquette, Hélène Gourain, Arthur Cheize, Marie Boutorh, Julia Shelley, Rachel Pereira Contreira, Leonardo Gledhill, Martha Hopwood, Mark J Lherminier, Pascale Sarthou, Geraldine Achterberg, Eric P 2018-01-23 http://livrepository.liverpool.ac.uk/3074644/ https://doi.org/10.5194/bg-2018-39 unknown Collapse authors list. Menzel Barraqueta, Jan-Lukas orcid:0000-0002-9735-1231 , Schlosser, Christian orcid:0000-0003-4858-2276 , Planquette, Hélène, Gourain, Arthur orcid:0000-0001-8288-6527 , Cheize, Marie, Boutorh, Julia, Shelley, Rachel orcid:0000-0001-8998-1332 , Pereira Contreira, Leonardo, Gledhill, Martha, Hopwood, Mark J orcid:0000-0002-9743-079X et al (show 3 more authors) , Lherminier, Pascale orcid:0000-0001-9007-2160 , Sarthou, Geraldine and Achterberg, Eric P (2018) Aluminium in the North Atlantic Ocean and the Labrador Sea (GEOTRACES GA01 section): roles of continental inputs and biogenic particle removal. Article NonPeerReviewed 2018 ftunivliverpool https://doi.org/10.5194/bg-2018-39 2023-01-19T23:52:20Z <jats:p>Abstract. The distribution of dissolved aluminium (dAl) in the water column of the North Atlantic and Labrador Sea was studied along GEOTRACES section GA01 to unravel the sources and sinks of this element. Surface water dAl concentrations were low (median of 2.5 nM) due to low aerosol deposition and removal by phytoplankton. However, surface water dAl concentrations were enhanced on the Iberian and Greenland shelves (up to 30.9 nM) due to continental inputs (rivers, glacial flour and ice melt). A negative correlation was observed between dAl in surface waters and primary production, phytoplankton community structure and biogenic opal production. The abundance of diatoms exerted a significant (p 0.76) west of the Iberian Basin, suggesting net release of dAl at depth during remineralization of sinking biogenic opal containing particles. Enrichment of dAl at near-bottom depths was observed due to resuspension of sediments near the sediment-water interface. The highest dAl (up to 38.7 nM) concentrations were observed in Mediterranean Overflow Waters which act as a major source of dAl to mid depth waters of the eastern North Atlantic. This study clearly shows that the vertical and lateral distribution of dAl in the North Atlantic differs when compared to other regions of the North Atlantic and global ocean due to the large spatial differences both in the main source of Al, atmospheric deposition, and the main sink for Al, particle scavenging, between different oceanic regions. </jats:p> Article in Journal/Newspaper Greenland Labrador Sea North Atlantic The University of Liverpool Repository Greenland |
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Open Polar |
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The University of Liverpool Repository |
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ftunivliverpool |
language |
unknown |
description |
<jats:p>Abstract. The distribution of dissolved aluminium (dAl) in the water column of the North Atlantic and Labrador Sea was studied along GEOTRACES section GA01 to unravel the sources and sinks of this element. Surface water dAl concentrations were low (median of 2.5 nM) due to low aerosol deposition and removal by phytoplankton. However, surface water dAl concentrations were enhanced on the Iberian and Greenland shelves (up to 30.9 nM) due to continental inputs (rivers, glacial flour and ice melt). A negative correlation was observed between dAl in surface waters and primary production, phytoplankton community structure and biogenic opal production. The abundance of diatoms exerted a significant (p 0.76) west of the Iberian Basin, suggesting net release of dAl at depth during remineralization of sinking biogenic opal containing particles. Enrichment of dAl at near-bottom depths was observed due to resuspension of sediments near the sediment-water interface. The highest dAl (up to 38.7 nM) concentrations were observed in Mediterranean Overflow Waters which act as a major source of dAl to mid depth waters of the eastern North Atlantic. This study clearly shows that the vertical and lateral distribution of dAl in the North Atlantic differs when compared to other regions of the North Atlantic and global ocean due to the large spatial differences both in the main source of Al, atmospheric deposition, and the main sink for Al, particle scavenging, between different oceanic regions. </jats:p> |
format |
Article in Journal/Newspaper |
author |
Menzel Barraqueta, Jan-Lukas Schlosser, Christian Planquette, Hélène Gourain, Arthur Cheize, Marie Boutorh, Julia Shelley, Rachel Pereira Contreira, Leonardo Gledhill, Martha Hopwood, Mark J Lherminier, Pascale Sarthou, Geraldine Achterberg, Eric P |
spellingShingle |
Menzel Barraqueta, Jan-Lukas Schlosser, Christian Planquette, Hélène Gourain, Arthur Cheize, Marie Boutorh, Julia Shelley, Rachel Pereira Contreira, Leonardo Gledhill, Martha Hopwood, Mark J Lherminier, Pascale Sarthou, Geraldine Achterberg, Eric P Aluminium in the North Atlantic Ocean and the Labrador Sea (GEOTRACES GA01 section): roles of continental inputs and biogenic particle removal |
author_facet |
Menzel Barraqueta, Jan-Lukas Schlosser, Christian Planquette, Hélène Gourain, Arthur Cheize, Marie Boutorh, Julia Shelley, Rachel Pereira Contreira, Leonardo Gledhill, Martha Hopwood, Mark J Lherminier, Pascale Sarthou, Geraldine Achterberg, Eric P |
author_sort |
Menzel Barraqueta, Jan-Lukas |
title |
Aluminium in the North Atlantic Ocean and the Labrador Sea (GEOTRACES GA01 section): roles of continental inputs and biogenic particle removal |
title_short |
Aluminium in the North Atlantic Ocean and the Labrador Sea (GEOTRACES GA01 section): roles of continental inputs and biogenic particle removal |
title_full |
Aluminium in the North Atlantic Ocean and the Labrador Sea (GEOTRACES GA01 section): roles of continental inputs and biogenic particle removal |
title_fullStr |
Aluminium in the North Atlantic Ocean and the Labrador Sea (GEOTRACES GA01 section): roles of continental inputs and biogenic particle removal |
title_full_unstemmed |
Aluminium in the North Atlantic Ocean and the Labrador Sea (GEOTRACES GA01 section): roles of continental inputs and biogenic particle removal |
title_sort |
aluminium in the north atlantic ocean and the labrador sea (geotraces ga01 section): roles of continental inputs and biogenic particle removal |
publishDate |
2018 |
url |
http://livrepository.liverpool.ac.uk/3074644/ https://doi.org/10.5194/bg-2018-39 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Labrador Sea North Atlantic |
genre_facet |
Greenland Labrador Sea North Atlantic |
op_relation |
Collapse authors list. Menzel Barraqueta, Jan-Lukas orcid:0000-0002-9735-1231 , Schlosser, Christian orcid:0000-0003-4858-2276 , Planquette, Hélène, Gourain, Arthur orcid:0000-0001-8288-6527 , Cheize, Marie, Boutorh, Julia, Shelley, Rachel orcid:0000-0001-8998-1332 , Pereira Contreira, Leonardo, Gledhill, Martha, Hopwood, Mark J orcid:0000-0002-9743-079X et al (show 3 more authors) , Lherminier, Pascale orcid:0000-0001-9007-2160 , Sarthou, Geraldine and Achterberg, Eric P (2018) Aluminium in the North Atlantic Ocean and the Labrador Sea (GEOTRACES GA01 section): roles of continental inputs and biogenic particle removal. |
op_doi |
https://doi.org/10.5194/bg-2018-39 |
_version_ |
1766019449839681536 |