Hydrothermal contribution to the oceanic dissolved iron inventory
International audience Iron limits phytoplankton growth and hence the biological carbon pump in the Southern Ocean. Models assessing the impacts of iron on the global carbon cycle generally rely on dust input and sediment resuspension as the predominant sources. Although it was previously thought th...
Published in: | Nature Geoscience |
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Main Authors: | , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2010
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Online Access: | https://hal.science/hal-00480657 https://doi.org/10.1038/NGEO818 |
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Open Polar |
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Météo-France: HAL |
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English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Tagliabue, Alessandro Bopp, Laurent Dutay, Jean-Claude Bowie, Andrew, R. Chever, Fanny Jean-Baptiste, P. Bucciarelli, Eva Lannuzel, Delphine Remenyi, Thomas Sarthou, Géraldine Aumont, Olivier Gehlen, M. Jeandel, Catherine Hydrothermal contribution to the oceanic dissolved iron inventory |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Iron limits phytoplankton growth and hence the biological carbon pump in the Southern Ocean. Models assessing the impacts of iron on the global carbon cycle generally rely on dust input and sediment resuspension as the predominant sources. Although it was previously thought that most iron from deep-ocean hydrothermal activity was inaccessible to phytoplankton because of the formation of particulates, it has been suggested that iron from hydrothermal activity may be an important source of oceanic dissolved iron. Here we use a global ocean model to assess the impacts of an annual dissolved iron flux of approximately 9 108 mol, as estimated from regional observations of hydrothermal activity, on the dissolved iron inventory of the world's oceans. We find the response to the input of hydrothermal dissolved iron is greatest in the Southern Hemisphere oceans. In particular, observations of the distribution of dissolved iron in the Southern Ocean3 (Chever et al., manuscript in preparation; Bowie et al., manuscript in preparation) can be replicated in our simulations only when our estimated iron flux from hydrothermal sources is included. As the hydrothermal flux of iron is relatively constant over millennial timescales, we propose that hydrothermal activity can buffer the oceanic dissolved iron inventory against shorter-term fluctuations in dust deposition. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) 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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Modélisation du climat (CLIM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC) School of Chemistry (ACROSS) University of Tasmania Hobart, Australia (UTAS) 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) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Université de Brest (UBO) Laboratoire de physique des océans (LPO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID) Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Financial support from grant GOCE-511176 (EU FP6 RTP project CARBOOCEAN) funded by the European Commission, CNRS (France), International Polar Year GEOTRACES, the Australian Government’s Cooperative Research Centres Programme through the Antarctic Climate and Ecosystems CRC (ACE CRC) and the Australian Antarctic Division (project AAS 2900). This work was carried out using HPC resources from GENCI-IDRIS (Grant 2009-10040) GEOTRACES European Project: 30029,CARBOOCEAN |
format |
Article in Journal/Newspaper |
author |
Tagliabue, Alessandro Bopp, Laurent Dutay, Jean-Claude Bowie, Andrew, R. Chever, Fanny Jean-Baptiste, P. Bucciarelli, Eva Lannuzel, Delphine Remenyi, Thomas Sarthou, Géraldine Aumont, Olivier Gehlen, M. Jeandel, Catherine |
author_facet |
Tagliabue, Alessandro Bopp, Laurent Dutay, Jean-Claude Bowie, Andrew, R. Chever, Fanny Jean-Baptiste, P. Bucciarelli, Eva Lannuzel, Delphine Remenyi, Thomas Sarthou, Géraldine Aumont, Olivier Gehlen, M. Jeandel, Catherine |
author_sort |
Tagliabue, Alessandro |
title |
Hydrothermal contribution to the oceanic dissolved iron inventory |
title_short |
Hydrothermal contribution to the oceanic dissolved iron inventory |
title_full |
Hydrothermal contribution to the oceanic dissolved iron inventory |
title_fullStr |
Hydrothermal contribution to the oceanic dissolved iron inventory |
title_full_unstemmed |
Hydrothermal contribution to the oceanic dissolved iron inventory |
title_sort |
hydrothermal contribution to the oceanic dissolved iron inventory |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.science/hal-00480657 https://doi.org/10.1038/NGEO818 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
ISSN: 1752-0894 Nature Geoscience https://hal.science/hal-00480657 Nature Geoscience, 2010, 3, pp.252-256. ⟨10.1038/NGEO818⟩ |
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info:eu-repo/semantics/altIdentifier/doi/10.1038/NGEO818 info:eu-repo/grantAgreement//30029/EU/Marine carbon sources and sinks assessment/CARBOOCEAN hal-00480657 https://hal.science/hal-00480657 doi:10.1038/NGEO818 |
op_doi |
https://doi.org/10.1038/NGEO818 |
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Nature Geoscience |
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3 |
container_issue |
4 |
container_start_page |
252 |
op_container_end_page |
256 |
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1809944428000837632 |
spelling |
ftmeteofrance:oai:HAL:hal-00480657v1 2024-09-09T20:10:04+00:00 Hydrothermal contribution to the oceanic dissolved iron inventory Tagliabue, Alessandro Bopp, Laurent Dutay, Jean-Claude Bowie, Andrew, R. Chever, Fanny Jean-Baptiste, P. Bucciarelli, Eva Lannuzel, Delphine Remenyi, Thomas Sarthou, Géraldine Aumont, Olivier Gehlen, M. Jeandel, Catherine Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) 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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Modélisation du climat (CLIM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC) School of Chemistry (ACROSS) University of Tasmania Hobart, Australia (UTAS) 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) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Université de Brest (UBO) Laboratoire de physique des océans (LPO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID) Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Financial support from grant GOCE-511176 (EU FP6 RTP project CARBOOCEAN) funded by the European Commission, CNRS (France), International Polar Year GEOTRACES, the Australian Government’s Cooperative Research Centres Programme through the Antarctic Climate and Ecosystems CRC (ACE CRC) and the Australian Antarctic Division (project AAS 2900). This work was carried out using HPC resources from GENCI-IDRIS (Grant 2009-10040) GEOTRACES European Project: 30029,CARBOOCEAN 2010 https://hal.science/hal-00480657 https://doi.org/10.1038/NGEO818 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/NGEO818 info:eu-repo/grantAgreement//30029/EU/Marine carbon sources and sinks assessment/CARBOOCEAN hal-00480657 https://hal.science/hal-00480657 doi:10.1038/NGEO818 ISSN: 1752-0894 Nature Geoscience https://hal.science/hal-00480657 Nature Geoscience, 2010, 3, pp.252-256. ⟨10.1038/NGEO818⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2010 ftmeteofrance https://doi.org/10.1038/NGEO818 2024-07-01T23:38:57Z International audience Iron limits phytoplankton growth and hence the biological carbon pump in the Southern Ocean. Models assessing the impacts of iron on the global carbon cycle generally rely on dust input and sediment resuspension as the predominant sources. Although it was previously thought that most iron from deep-ocean hydrothermal activity was inaccessible to phytoplankton because of the formation of particulates, it has been suggested that iron from hydrothermal activity may be an important source of oceanic dissolved iron. Here we use a global ocean model to assess the impacts of an annual dissolved iron flux of approximately 9 108 mol, as estimated from regional observations of hydrothermal activity, on the dissolved iron inventory of the world's oceans. We find the response to the input of hydrothermal dissolved iron is greatest in the Southern Hemisphere oceans. In particular, observations of the distribution of dissolved iron in the Southern Ocean3 (Chever et al., manuscript in preparation; Bowie et al., manuscript in preparation) can be replicated in our simulations only when our estimated iron flux from hydrothermal sources is included. As the hydrothermal flux of iron is relatively constant over millennial timescales, we propose that hydrothermal activity can buffer the oceanic dissolved iron inventory against shorter-term fluctuations in dust deposition. Article in Journal/Newspaper Southern Ocean Météo-France: HAL Southern Ocean Nature Geoscience 3 4 252 256 |