Continental and sea ice iron sources fertilize the Southern Ocean in synergy
International audience Iron release from melting continental and sea ice is deemed important for phytoplankton, the growth of which is iron-limited in the Southern Ocean. Both sources are generally considered separately, yet their effects on the biological carbon pump could interact. Using a global...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2021
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Online Access: | https://hal.science/hal-03451384 https://hal.science/hal-03451384/document https://hal.science/hal-03451384/file/Geophysical%20Research%20Letters%20-%202021%20-%20Person%20-%20Continental%20and%20Sea%20Ice%20Iron%20Sources%20Fertilize%20the%20Southern%20Ocean%20in%20Synergy.pdf https://doi.org/10.1029/2021GL094761 |
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openpolar |
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Open Polar |
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HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
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ftceafr |
language |
English |
topic |
[SDE]Environmental Sciences [SDU]Sciences of the Universe [physics] |
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[SDE]Environmental Sciences [SDU]Sciences of the Universe [physics] Person, Renaud Vancoppenolle, M. Aumont, Olivier Malsang, Manon Continental and sea ice iron sources fertilize the Southern Ocean in synergy |
topic_facet |
[SDE]Environmental Sciences [SDU]Sciences of the Universe [physics] |
description |
International audience Iron release from melting continental and sea ice is deemed important for phytoplankton, the growth of which is iron-limited in the Southern Ocean. Both sources are generally considered separately, yet their effects on the biological carbon pump could interact. Using a global ocean-sea-ice-biogeochemical model with a representation of both continental and sea ice iron sources, we find them to have an overall additive effect on phytoplankton activity, increasing carbon export by +13.9% of the Southern Ocean total, with continental ice contributing +4.5% and sea ice +8.0%. The +1.4% residual is due to a coupled fertilization effect: When the iron source from continental ice is activated, iron in sea ice increases by 16%, so does iron transport toward low production areas. Overall, this increases phytoplankton activity: Fertilization is more efficient where sea ice melts than at locations of initial iron release by continental ice. |
author2 |
Nucleus for European Modeling of the Ocean (NEMO R&D ) 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) Département des Géosciences - ENS Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) 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 |
Person, Renaud Vancoppenolle, M. Aumont, Olivier Malsang, Manon |
author_facet |
Person, Renaud Vancoppenolle, M. Aumont, Olivier Malsang, Manon |
author_sort |
Person, Renaud |
title |
Continental and sea ice iron sources fertilize the Southern Ocean in synergy |
title_short |
Continental and sea ice iron sources fertilize the Southern Ocean in synergy |
title_full |
Continental and sea ice iron sources fertilize the Southern Ocean in synergy |
title_fullStr |
Continental and sea ice iron sources fertilize the Southern Ocean in synergy |
title_full_unstemmed |
Continental and sea ice iron sources fertilize the Southern Ocean in synergy |
title_sort |
continental and sea ice iron sources fertilize the southern ocean in synergy |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03451384 https://hal.science/hal-03451384/document https://hal.science/hal-03451384/file/Geophysical%20Research%20Letters%20-%202021%20-%20Person%20-%20Continental%20and%20Sea%20Ice%20Iron%20Sources%20Fertilize%20the%20Southern%20Ocean%20in%20Synergy.pdf https://doi.org/10.1029/2021GL094761 |
genre |
Sea ice Southern Ocean |
genre_facet |
Sea ice Southern Ocean |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03451384 Geophysical Research Letters, 2021, 48 (23), pp.e2021GL094761. ⟨10.1029/2021GL094761⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2021GL094761 hal-03451384 https://hal.science/hal-03451384 https://hal.science/hal-03451384/document https://hal.science/hal-03451384/file/Geophysical%20Research%20Letters%20-%202021%20-%20Person%20-%20Continental%20and%20Sea%20Ice%20Iron%20Sources%20Fertilize%20the%20Southern%20Ocean%20in%20Synergy.pdf doi:10.1029/2021GL094761 IRD: fdi:010083849 WOS: 000730019700010 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2021GL094761 |
container_title |
Geophysical Research Letters |
container_volume |
48 |
container_issue |
23 |
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1799488677126078464 |
spelling |
ftceafr:oai:HAL:hal-03451384v1 2024-05-19T07:48:10+00:00 Continental and sea ice iron sources fertilize the Southern Ocean in synergy Person, Renaud Vancoppenolle, M. Aumont, Olivier Malsang, Manon Nucleus for European Modeling of the Ocean (NEMO R&D ) 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) Département des Géosciences - ENS Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) ANR-16-CE01-0014,SOBUMS,Comprendre la réponse du cycle du carbone dans l'océan austral au stress climatique(2016) 2021-12-16 https://hal.science/hal-03451384 https://hal.science/hal-03451384/document https://hal.science/hal-03451384/file/Geophysical%20Research%20Letters%20-%202021%20-%20Person%20-%20Continental%20and%20Sea%20Ice%20Iron%20Sources%20Fertilize%20the%20Southern%20Ocean%20in%20Synergy.pdf https://doi.org/10.1029/2021GL094761 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2021GL094761 hal-03451384 https://hal.science/hal-03451384 https://hal.science/hal-03451384/document https://hal.science/hal-03451384/file/Geophysical%20Research%20Letters%20-%202021%20-%20Person%20-%20Continental%20and%20Sea%20Ice%20Iron%20Sources%20Fertilize%20the%20Southern%20Ocean%20in%20Synergy.pdf doi:10.1029/2021GL094761 IRD: fdi:010083849 WOS: 000730019700010 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03451384 Geophysical Research Letters, 2021, 48 (23), pp.e2021GL094761. ⟨10.1029/2021GL094761⟩ [SDE]Environmental Sciences [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2021 ftceafr https://doi.org/10.1029/2021GL094761 2024-04-25T01:38:30Z International audience Iron release from melting continental and sea ice is deemed important for phytoplankton, the growth of which is iron-limited in the Southern Ocean. Both sources are generally considered separately, yet their effects on the biological carbon pump could interact. Using a global ocean-sea-ice-biogeochemical model with a representation of both continental and sea ice iron sources, we find them to have an overall additive effect on phytoplankton activity, increasing carbon export by +13.9% of the Southern Ocean total, with continental ice contributing +4.5% and sea ice +8.0%. The +1.4% residual is due to a coupled fertilization effect: When the iron source from continental ice is activated, iron in sea ice increases by 16%, so does iron transport toward low production areas. Overall, this increases phytoplankton activity: Fertilization is more efficient where sea ice melts than at locations of initial iron release by continental ice. Article in Journal/Newspaper Sea ice Southern Ocean HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Geophysical Research Letters 48 23 |