Vertical eddy iron fluxes support primary production in the open Southern Ocean
International audience The primary productivity of the Southern Ocean ecosystem is limited by iron availability. Away from benthic and aeolian sources, iron reaches phytoplankton primarily when iron-rich subsurface waters enter the euphotic zone. Here, eddy-resolving physical/biogeochemical simulati...
Published in: | Nature Communications |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2020
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Online Access: | https://hal.science/hal-03003429 https://hal.science/hal-03003429/document https://hal.science/hal-03003429/file/s41467-020-14955-0.pdf https://doi.org/10.1038/s41467-020-14955-0 |
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ftepunivpsaclay:oai:HAL:hal-03003429v1 |
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openpolar |
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Open Polar |
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École Polytechnique, Université Paris-Saclay: HAL |
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ftepunivpsaclay |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Uchida, Takaya Balwada, Dhruv Abernathey, Ryan P. Mckinley, Galen A. Smith, K. Shafer Lévy, Marina Vertical eddy iron fluxes support primary production in the open Southern Ocean |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience The primary productivity of the Southern Ocean ecosystem is limited by iron availability. Away from benthic and aeolian sources, iron reaches phytoplankton primarily when iron-rich subsurface waters enter the euphotic zone. Here, eddy-resolving physical/biogeochemical simulations of a seasonally-forced, open-Southern-Ocean ecosystem reveal that mesoscale and submesoscale isopycnal stirring effects a cross-mixed-layer-base transport of iron that sustains primary productivity. The eddy-driven iron supply and consequently productivity increase with model resolution. We show the eddy flux can be represented by specific well-tuned eddy parametrizations. Since eddy mixing rates are sensitive to wind forcing and large-scale hydrographic changes, these findings suggest a new mechanism for modulating the Southern Ocean biological pump on climate timescales. |
author2 |
Department of Earth and Environmental Sciences New York Columbia University New York Courant Institute of Mathematical Sciences New York (CIMS) New York University New York (NYU) NYU System (NYU)-NYU System (NYU) Lamont-Doherty Earth Observatory (LDEO) Processus et interactions de fine échelle océanique (PROTEO) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) ANR-16-CE01-0014,SOBUMS,Comprendre la réponse du cycle du carbone dans l'océan austral au stress climatique(2016) |
format |
Article in Journal/Newspaper |
author |
Uchida, Takaya Balwada, Dhruv Abernathey, Ryan P. Mckinley, Galen A. Smith, K. Shafer Lévy, Marina |
author_facet |
Uchida, Takaya Balwada, Dhruv Abernathey, Ryan P. Mckinley, Galen A. Smith, K. Shafer Lévy, Marina |
author_sort |
Uchida, Takaya |
title |
Vertical eddy iron fluxes support primary production in the open Southern Ocean |
title_short |
Vertical eddy iron fluxes support primary production in the open Southern Ocean |
title_full |
Vertical eddy iron fluxes support primary production in the open Southern Ocean |
title_fullStr |
Vertical eddy iron fluxes support primary production in the open Southern Ocean |
title_full_unstemmed |
Vertical eddy iron fluxes support primary production in the open Southern Ocean |
title_sort |
vertical eddy iron fluxes support primary production in the open southern ocean |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-03003429 https://hal.science/hal-03003429/document https://hal.science/hal-03003429/file/s41467-020-14955-0.pdf https://doi.org/10.1038/s41467-020-14955-0 |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.science/hal-03003429 Nature Communications, 2020, 11 (1), ⟨10.1038/s41467-020-14955-0⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-020-14955-0 hal-03003429 https://hal.science/hal-03003429 https://hal.science/hal-03003429/document https://hal.science/hal-03003429/file/s41467-020-14955-0.pdf doi:10.1038/s41467-020-14955-0 WOS: 000518626300018 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41467-020-14955-0 |
container_title |
Nature Communications |
container_volume |
11 |
container_issue |
1 |
_version_ |
1799467081632055296 |
spelling |
ftepunivpsaclay:oai:HAL:hal-03003429v1 2024-05-19T07:48:45+00:00 Vertical eddy iron fluxes support primary production in the open Southern Ocean Uchida, Takaya Balwada, Dhruv Abernathey, Ryan P. Mckinley, Galen A. Smith, K. Shafer Lévy, Marina Department of Earth and Environmental Sciences New York Columbia University New York Courant Institute of Mathematical Sciences New York (CIMS) New York University New York (NYU) NYU System (NYU)-NYU System (NYU) Lamont-Doherty Earth Observatory (LDEO) Processus et interactions de fine échelle océanique (PROTEO) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) ANR-16-CE01-0014,SOBUMS,Comprendre la réponse du cycle du carbone dans l'océan austral au stress climatique(2016) 2020-12 https://hal.science/hal-03003429 https://hal.science/hal-03003429/document https://hal.science/hal-03003429/file/s41467-020-14955-0.pdf https://doi.org/10.1038/s41467-020-14955-0 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-020-14955-0 hal-03003429 https://hal.science/hal-03003429 https://hal.science/hal-03003429/document https://hal.science/hal-03003429/file/s41467-020-14955-0.pdf doi:10.1038/s41467-020-14955-0 WOS: 000518626300018 info:eu-repo/semantics/OpenAccess ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.science/hal-03003429 Nature Communications, 2020, 11 (1), ⟨10.1038/s41467-020-14955-0⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2020 ftepunivpsaclay https://doi.org/10.1038/s41467-020-14955-0 2024-04-25T00:45:55Z International audience The primary productivity of the Southern Ocean ecosystem is limited by iron availability. Away from benthic and aeolian sources, iron reaches phytoplankton primarily when iron-rich subsurface waters enter the euphotic zone. Here, eddy-resolving physical/biogeochemical simulations of a seasonally-forced, open-Southern-Ocean ecosystem reveal that mesoscale and submesoscale isopycnal stirring effects a cross-mixed-layer-base transport of iron that sustains primary productivity. The eddy-driven iron supply and consequently productivity increase with model resolution. We show the eddy flux can be represented by specific well-tuned eddy parametrizations. Since eddy mixing rates are sensitive to wind forcing and large-scale hydrographic changes, these findings suggest a new mechanism for modulating the Southern Ocean biological pump on climate timescales. Article in Journal/Newspaper Southern Ocean École Polytechnique, Université Paris-Saclay: HAL Nature Communications 11 1 |