Manganese in the west Atlantic Ocean in the context of the first global ocean circulation model of manganese
International audience Dissolved manganese (Mn) is a biologically essential element. Moreover, its oxidised form is involved in removing itself and several other trace elements from ocean waters. Here we report the longest thus far (17 500 km length) full-depth ocean section of dissolved Mn in the w...
Published in: | Biogeosciences |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2017
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Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-02827277 https://hal.archives-ouvertes.fr/hal-02827277/document https://hal.archives-ouvertes.fr/hal-02827277/file/bg-14-1123-2017.pdf https://doi.org/10.5194/bg-14-1123-2017 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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English |
topic |
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Van Hulten, Marco Middag, Rob Dutay, Jean-Claude De Baar, Hein, Roy-Barman, Matthieu Gehlen, Marion Tagliabue, Alessandro Sterl, Andreas Manganese in the west Atlantic Ocean in the context of the first global ocean circulation model of manganese |
topic_facet |
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Dissolved manganese (Mn) is a biologically essential element. Moreover, its oxidised form is involved in removing itself and several other trace elements from ocean waters. Here we report the longest thus far (17 500 km length) full-depth ocean section of dissolved Mn in the west Atlantic Ocean, comprising 1320 data values of high accuracy. This is the GA02 transect that is part of the GEO-TRACES programme, which aims to understand trace element distributions. The goal of this study is to combine these new observations with new, state-of-the-art, modelling to give a first assessment of the main sources and redistribution of Mn throughout the ocean. To this end, we simulate the distribution of dissolved Mn using a global-scale circulation model. This first model includes simple parameterisa-tions to account for the sources, processes and sinks of Mn in the ocean. Oxidation and (photo)reduction, aggregation and settling, as well as biological uptake and remineralisation by plankton are included in the model. Our model provides, together with the observations, the following insights:-The high surface concentrations of manganese are caused by the combination of photoreduction and sources contributing to the upper ocean. The most important sources are sediments, dust, and, more locally, rivers.-Observations and model simulations suggest that surface Mn in the Atlantic Ocean moves downwards into the southward-flowing North Atlantic Deep Water (NADW), but because of strong removal rates there is no elevated concentration of Mn visible any more in the NADW south of 40 • N.-The model predicts lower dissolved Mn in surface waters of the Pacific Ocean than the observed concentrations. The intense oxygen minimum zone (OMZ) in subsurface waters is deemed to be a major source of dissolved Mn also mixing upwards into surface waters , but the OMZ is not well represented by the model. Improved high-resolution simulation of the OMZ may solve this problem. |
author2 |
Royal Netherlands Meteorological Institute (KNMI) Royal Netherlands Institute for Sea Research (NIOZ) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Modélisation du climat (CLIM) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Géochimie Des Impacts (GEDI) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID) Department of Oceanography Cape Town University of Cape Town |
format |
Article in Journal/Newspaper |
author |
Van Hulten, Marco Middag, Rob Dutay, Jean-Claude De Baar, Hein, Roy-Barman, Matthieu Gehlen, Marion Tagliabue, Alessandro Sterl, Andreas |
author_facet |
Van Hulten, Marco Middag, Rob Dutay, Jean-Claude De Baar, Hein, Roy-Barman, Matthieu Gehlen, Marion Tagliabue, Alessandro Sterl, Andreas |
author_sort |
Van Hulten, Marco |
title |
Manganese in the west Atlantic Ocean in the context of the first global ocean circulation model of manganese |
title_short |
Manganese in the west Atlantic Ocean in the context of the first global ocean circulation model of manganese |
title_full |
Manganese in the west Atlantic Ocean in the context of the first global ocean circulation model of manganese |
title_fullStr |
Manganese in the west Atlantic Ocean in the context of the first global ocean circulation model of manganese |
title_full_unstemmed |
Manganese in the west Atlantic Ocean in the context of the first global ocean circulation model of manganese |
title_sort |
manganese in the west atlantic ocean in the context of the first global ocean circulation model of manganese |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.archives-ouvertes.fr/hal-02827277 https://hal.archives-ouvertes.fr/hal-02827277/document https://hal.archives-ouvertes.fr/hal-02827277/file/bg-14-1123-2017.pdf https://doi.org/10.5194/bg-14-1123-2017 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
NADW North Atlantic Deep Water North Atlantic |
genre_facet |
NADW North Atlantic Deep Water North Atlantic |
op_source |
ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.archives-ouvertes.fr/hal-02827277 Biogeosciences, European Geosciences Union, 2017, 14 (5), pp.1123-1152. ⟨10.5194/bg-14-1123-2017⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-14-1123-2017 hal-02827277 https://hal.archives-ouvertes.fr/hal-02827277 https://hal.archives-ouvertes.fr/hal-02827277/document https://hal.archives-ouvertes.fr/hal-02827277/file/bg-14-1123-2017.pdf doi:10.5194/bg-14-1123-2017 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/bg-14-1123-2017 |
container_title |
Biogeosciences |
container_volume |
14 |
container_issue |
5 |
container_start_page |
1123 |
op_container_end_page |
1152 |
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1766071074947072000 |
spelling |
ftccsdartic:oai:HAL:hal-02827277v1 2023-05-15T17:13:53+02:00 Manganese in the west Atlantic Ocean in the context of the first global ocean circulation model of manganese Van Hulten, Marco Middag, Rob Dutay, Jean-Claude De Baar, Hein, Roy-Barman, Matthieu Gehlen, Marion Tagliabue, Alessandro Sterl, Andreas Royal Netherlands Meteorological Institute (KNMI) Royal Netherlands Institute for Sea Research (NIOZ) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Modélisation du climat (CLIM) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Géochimie Des Impacts (GEDI) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID) Department of Oceanography Cape Town University of Cape Town 2017 https://hal.archives-ouvertes.fr/hal-02827277 https://hal.archives-ouvertes.fr/hal-02827277/document https://hal.archives-ouvertes.fr/hal-02827277/file/bg-14-1123-2017.pdf https://doi.org/10.5194/bg-14-1123-2017 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-14-1123-2017 hal-02827277 https://hal.archives-ouvertes.fr/hal-02827277 https://hal.archives-ouvertes.fr/hal-02827277/document https://hal.archives-ouvertes.fr/hal-02827277/file/bg-14-1123-2017.pdf doi:10.5194/bg-14-1123-2017 info:eu-repo/semantics/OpenAccess ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.archives-ouvertes.fr/hal-02827277 Biogeosciences, European Geosciences Union, 2017, 14 (5), pp.1123-1152. ⟨10.5194/bg-14-1123-2017⟩ [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2017 ftccsdartic https://doi.org/10.5194/bg-14-1123-2017 2021-12-19T00:50:15Z International audience Dissolved manganese (Mn) is a biologically essential element. Moreover, its oxidised form is involved in removing itself and several other trace elements from ocean waters. Here we report the longest thus far (17 500 km length) full-depth ocean section of dissolved Mn in the west Atlantic Ocean, comprising 1320 data values of high accuracy. This is the GA02 transect that is part of the GEO-TRACES programme, which aims to understand trace element distributions. The goal of this study is to combine these new observations with new, state-of-the-art, modelling to give a first assessment of the main sources and redistribution of Mn throughout the ocean. To this end, we simulate the distribution of dissolved Mn using a global-scale circulation model. This first model includes simple parameterisa-tions to account for the sources, processes and sinks of Mn in the ocean. Oxidation and (photo)reduction, aggregation and settling, as well as biological uptake and remineralisation by plankton are included in the model. Our model provides, together with the observations, the following insights:-The high surface concentrations of manganese are caused by the combination of photoreduction and sources contributing to the upper ocean. The most important sources are sediments, dust, and, more locally, rivers.-Observations and model simulations suggest that surface Mn in the Atlantic Ocean moves downwards into the southward-flowing North Atlantic Deep Water (NADW), but because of strong removal rates there is no elevated concentration of Mn visible any more in the NADW south of 40 • N.-The model predicts lower dissolved Mn in surface waters of the Pacific Ocean than the observed concentrations. The intense oxygen minimum zone (OMZ) in subsurface waters is deemed to be a major source of dissolved Mn also mixing upwards into surface waters , but the OMZ is not well represented by the model. Improved high-resolution simulation of the OMZ may solve this problem. Article in Journal/Newspaper NADW North Atlantic Deep Water North Atlantic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Pacific Biogeosciences 14 5 1123 1152 |