Deep dissolved iron profiles in the eastern North Atlantic in relation to water masses
International audience Concentrations of dissolved iron (DFe, 0.2mum) were determined at two stations in the Biscay Abyssal Plain ( North East Atlantic) in March 2002. DFe concentrations in the surface layer (0.23-0.34 nM) were typical of winter conditions in this area. At 1000 m, DFe concentrations...
Published in: | Geophysical Research Letters |
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Format: | Article in Journal/Newspaper |
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Online Access: | https://hal.science/hal-02639344 https://hal.science/hal-02639344/document https://hal.science/hal-02639344/file/2003GL017902.pdf https://doi.org/10.1029/2003GL017902 |
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ftinsu:oai:HAL:hal-02639344v1 2024-02-11T10:05:36+01:00 Deep dissolved iron profiles in the eastern North Atlantic in relation to water masses Laës, Agathe Blain, Stéphane Laan, Patrick Achterberg, Eric P. Sarthou, Géraldine de Baar, H. J. W. Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Royal Netherlands Institute for Sea Research (NIOZ) Department of Marine Chemistry and Geology Plymouth University 2003-09-10 https://hal.science/hal-02639344 https://hal.science/hal-02639344/document https://hal.science/hal-02639344/file/2003GL017902.pdf https://doi.org/10.1029/2003GL017902 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2003GL017902 hal-02639344 https://hal.science/hal-02639344 https://hal.science/hal-02639344/document https://hal.science/hal-02639344/file/2003GL017902.pdf doi:10.1029/2003GL017902 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-02639344 Geophysical Research Letters, 2003, 30 (17), pp.1902. ⟨10.1029/2003GL017902⟩ LABRADOR-SEA-WATER WORLD OCEAN PACIFIC HYDROGRAPHY SEAWATER BISCAY MARGIN FLUX BAY ACL [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2003 ftinsu https://doi.org/10.1029/2003GL017902 2024-01-24T17:32:21Z International audience Concentrations of dissolved iron (DFe, 0.2mum) were determined at two stations in the Biscay Abyssal Plain ( North East Atlantic) in March 2002. DFe concentrations in the surface layer (0.23-0.34 nM) were typical of winter conditions in this area. At 1000 m, DFe concentrations increased to 0.62-0.86 nM. This feature is consistent with the production of DFe by remineralization of the biogenic material. However, at this depth, Mediterranean Outflow Water ( MOW) could be an additional source of DFe. Below 2500 m, DFe concentrations were constant (0.75 +/- 0.04 nM). An interesting feature of the profiles was the intermediate maximum of DFe (1.19-1.12 nM) around 2000 m, associated with the Labrador Sea Water (LSW). We suggest that the iron enrichment of LSW occurred when this water mass reached the continental margin, likely in the vicinity of the Goban plateau. Vertical distributions were highly dependent on water masses encountered. Article in Journal/Newspaper Labrador Sea North Atlantic North East Atlantic Institut national des sciences de l'Univers: HAL-INSU Pacific Geophysical Research Letters 30 17 n/a n/a |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
LABRADOR-SEA-WATER WORLD OCEAN PACIFIC HYDROGRAPHY SEAWATER BISCAY MARGIN FLUX BAY ACL [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
LABRADOR-SEA-WATER WORLD OCEAN PACIFIC HYDROGRAPHY SEAWATER BISCAY MARGIN FLUX BAY ACL [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Laës, Agathe Blain, Stéphane Laan, Patrick Achterberg, Eric P. Sarthou, Géraldine de Baar, H. J. W. Deep dissolved iron profiles in the eastern North Atlantic in relation to water masses |
topic_facet |
LABRADOR-SEA-WATER WORLD OCEAN PACIFIC HYDROGRAPHY SEAWATER BISCAY MARGIN FLUX BAY ACL [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Concentrations of dissolved iron (DFe, 0.2mum) were determined at two stations in the Biscay Abyssal Plain ( North East Atlantic) in March 2002. DFe concentrations in the surface layer (0.23-0.34 nM) were typical of winter conditions in this area. At 1000 m, DFe concentrations increased to 0.62-0.86 nM. This feature is consistent with the production of DFe by remineralization of the biogenic material. However, at this depth, Mediterranean Outflow Water ( MOW) could be an additional source of DFe. Below 2500 m, DFe concentrations were constant (0.75 +/- 0.04 nM). An interesting feature of the profiles was the intermediate maximum of DFe (1.19-1.12 nM) around 2000 m, associated with the Labrador Sea Water (LSW). We suggest that the iron enrichment of LSW occurred when this water mass reached the continental margin, likely in the vicinity of the Goban plateau. Vertical distributions were highly dependent on water masses encountered. |
author2 |
Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Royal Netherlands Institute for Sea Research (NIOZ) Department of Marine Chemistry and Geology Plymouth University |
format |
Article in Journal/Newspaper |
author |
Laës, Agathe Blain, Stéphane Laan, Patrick Achterberg, Eric P. Sarthou, Géraldine de Baar, H. J. W. |
author_facet |
Laës, Agathe Blain, Stéphane Laan, Patrick Achterberg, Eric P. Sarthou, Géraldine de Baar, H. J. W. |
author_sort |
Laës, Agathe |
title |
Deep dissolved iron profiles in the eastern North Atlantic in relation to water masses |
title_short |
Deep dissolved iron profiles in the eastern North Atlantic in relation to water masses |
title_full |
Deep dissolved iron profiles in the eastern North Atlantic in relation to water masses |
title_fullStr |
Deep dissolved iron profiles in the eastern North Atlantic in relation to water masses |
title_full_unstemmed |
Deep dissolved iron profiles in the eastern North Atlantic in relation to water masses |
title_sort |
deep dissolved iron profiles in the eastern north atlantic in relation to water masses |
publisher |
HAL CCSD |
publishDate |
2003 |
url |
https://hal.science/hal-02639344 https://hal.science/hal-02639344/document https://hal.science/hal-02639344/file/2003GL017902.pdf https://doi.org/10.1029/2003GL017902 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Labrador Sea North Atlantic North East Atlantic |
genre_facet |
Labrador Sea North Atlantic North East Atlantic |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-02639344 Geophysical Research Letters, 2003, 30 (17), pp.1902. ⟨10.1029/2003GL017902⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2003GL017902 hal-02639344 https://hal.science/hal-02639344 https://hal.science/hal-02639344/document https://hal.science/hal-02639344/file/2003GL017902.pdf doi:10.1029/2003GL017902 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2003GL017902 |
container_title |
Geophysical Research Letters |
container_volume |
30 |
container_issue |
17 |
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n/a |
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n/a |
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1790602682996621312 |