Particulate and dissolved aluminum and titanium in the upper water column of the Atlantic Ocean
This study investigates the oceanic behavior of the lithogenic trace elements Al and Ti in the upper 200 m of the Atlantic Ocean. The distribution of both metals in the dissolved and particulate phases was assessed along an E-W transect in the eastern tropical North Atlantic (December 2009) and alon...
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ftplymouthml:oai:plymsea.ac.uk:2534 2023-05-15T17:31:30+02:00 Particulate and dissolved aluminum and titanium in the upper water column of the Atlantic Ocean Dammshaeuser, A Wagener, T Garbe-Schönberg, D Croot, PL 2013-03 http://plymsea.ac.uk/id/eprint/2534/ https://doi.org/10.1016/j.dsr.2012.12.002 unknown Dammshaeuser, A; Wagener, T; Garbe-Schönberg, D; Croot, PL. 2013 Particulate and dissolved aluminum and titanium in the upper water column of the Atlantic Ocean. Deep Sea Research Part I: Oceanographic Research Papers, 73. 127-139. https://doi.org/10.1016/j.dsr.2012.12.002 <https://doi.org/10.1016/j.dsr.2012.12.002> Atmospheric Sciences Chemistry Oceanography Publication - Article PeerReviewed 2013 ftplymouthml https://doi.org/10.1016/j.dsr.2012.12.002 2022-09-13T05:46:49Z This study investigates the oceanic behavior of the lithogenic trace elements Al and Ti in the upper 200 m of the Atlantic Ocean. The distribution of both metals in the dissolved and particulate phases was assessed along an E-W transect in the eastern tropical North Atlantic (December 2009) and along a meridional Atlantic transect (April-May 2010). The surface water concentrations of particulate and dissolved Al and Ti reflected the previously observed pattern of atmospheric inputs into the Atlantic Ocean. Subsurface minima at stations with pronounced fluorescence maxima were observed, suggesting a link between biological productivity and the removal of both dissolved and particulate Al and Ti. This may include uptake mechanisms, adsorption and aggregation processes on biogenic particle surfaces and the formation of large, fast sinking biogenic particles, e.g., fecal pellets. Residence times in the upper water column (100 m) of the tropical and subtropical North Atlantic were estimated to range in the order of days to weeks in the particulate phases (Al: 3-22 days, Ti: 4-37 days) and were 0.9-3.8 years for Al and 10-31 years for Ti in the dissolved phases. Longer residence times in both phases in the South Atlantic are consistent with lower biological productivity and decreased removal rates. In the upper water column, Al was predominantly present in the dissolved form, whereas Ti mostly occurred in the particulate form. Largest deviations in the partition coefficients between the particulate and dissolved phases were found in the surface waters, together with excess dissolved Al over Ti compared to the crustal source. This likely reflects elevated dissolution of Al compared to Ti from atmospheric mineral particles. Article in Journal/Newspaper North Atlantic Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) Deep Sea Research Part I: Oceanographic Research Papers 73 127 139 |
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Open Polar |
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Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) |
op_collection_id |
ftplymouthml |
language |
unknown |
topic |
Atmospheric Sciences Chemistry Oceanography |
spellingShingle |
Atmospheric Sciences Chemistry Oceanography Dammshaeuser, A Wagener, T Garbe-Schönberg, D Croot, PL Particulate and dissolved aluminum and titanium in the upper water column of the Atlantic Ocean |
topic_facet |
Atmospheric Sciences Chemistry Oceanography |
description |
This study investigates the oceanic behavior of the lithogenic trace elements Al and Ti in the upper 200 m of the Atlantic Ocean. The distribution of both metals in the dissolved and particulate phases was assessed along an E-W transect in the eastern tropical North Atlantic (December 2009) and along a meridional Atlantic transect (April-May 2010). The surface water concentrations of particulate and dissolved Al and Ti reflected the previously observed pattern of atmospheric inputs into the Atlantic Ocean. Subsurface minima at stations with pronounced fluorescence maxima were observed, suggesting a link between biological productivity and the removal of both dissolved and particulate Al and Ti. This may include uptake mechanisms, adsorption and aggregation processes on biogenic particle surfaces and the formation of large, fast sinking biogenic particles, e.g., fecal pellets. Residence times in the upper water column (100 m) of the tropical and subtropical North Atlantic were estimated to range in the order of days to weeks in the particulate phases (Al: 3-22 days, Ti: 4-37 days) and were 0.9-3.8 years for Al and 10-31 years for Ti in the dissolved phases. Longer residence times in both phases in the South Atlantic are consistent with lower biological productivity and decreased removal rates. In the upper water column, Al was predominantly present in the dissolved form, whereas Ti mostly occurred in the particulate form. Largest deviations in the partition coefficients between the particulate and dissolved phases were found in the surface waters, together with excess dissolved Al over Ti compared to the crustal source. This likely reflects elevated dissolution of Al compared to Ti from atmospheric mineral particles. |
format |
Article in Journal/Newspaper |
author |
Dammshaeuser, A Wagener, T Garbe-Schönberg, D Croot, PL |
author_facet |
Dammshaeuser, A Wagener, T Garbe-Schönberg, D Croot, PL |
author_sort |
Dammshaeuser, A |
title |
Particulate and dissolved aluminum and titanium in the upper water column of the Atlantic Ocean |
title_short |
Particulate and dissolved aluminum and titanium in the upper water column of the Atlantic Ocean |
title_full |
Particulate and dissolved aluminum and titanium in the upper water column of the Atlantic Ocean |
title_fullStr |
Particulate and dissolved aluminum and titanium in the upper water column of the Atlantic Ocean |
title_full_unstemmed |
Particulate and dissolved aluminum and titanium in the upper water column of the Atlantic Ocean |
title_sort |
particulate and dissolved aluminum and titanium in the upper water column of the atlantic ocean |
publishDate |
2013 |
url |
http://plymsea.ac.uk/id/eprint/2534/ https://doi.org/10.1016/j.dsr.2012.12.002 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Dammshaeuser, A; Wagener, T; Garbe-Schönberg, D; Croot, PL. 2013 Particulate and dissolved aluminum and titanium in the upper water column of the Atlantic Ocean. Deep Sea Research Part I: Oceanographic Research Papers, 73. 127-139. https://doi.org/10.1016/j.dsr.2012.12.002 <https://doi.org/10.1016/j.dsr.2012.12.002> |
op_doi |
https://doi.org/10.1016/j.dsr.2012.12.002 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
73 |
container_start_page |
127 |
op_container_end_page |
139 |
_version_ |
1766129138686492672 |