Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone
International audience The fate of the Southern Ocean atmospheric CO 2 sink is under question. Here we assess seasonal to decadal changes of surface f CO 2 within an extended sink area along the track between Kerguelen and Amsterdam islands in the subantarctic zone. Data from 17 oceanographic cruise...
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ftsorbonneuniv:oai:HAL:hal-00755350v1 2024-05-19T07:48:57+00:00 Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone Lourantou, Anna Metzl, Nicolas Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2011-12 https://hal.science/hal-00755350 https://hal.science/hal-00755350/document https://hal.science/hal-00755350/file/2011GL049614.pdf https://doi.org/10.1029/2011GL049614 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2011GL049614 hal-00755350 https://hal.science/hal-00755350 https://hal.science/hal-00755350/document https://hal.science/hal-00755350/file/2011GL049614.pdf BIBCODE: 2011GeoRL.3823608L doi:10.1029/2011GL049614 WOS: 000298260900001 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00755350 Geophysical Research Letters, 2011, 38, pp.23608. ⟨10.1029/2011GL049614⟩ [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2011 ftsorbonneuniv https://doi.org/10.1029/2011GL049614 2024-04-25T03:56:49Z International audience The fate of the Southern Ocean atmospheric CO 2 sink is under question. Here we assess seasonal to decadal changes of surface f CO 2 within an extended sink area along the track between Kerguelen and Amsterdam islands in the subantarctic zone. Data from 17 oceanographic cruises were used, from 1991 to 2011 and two distinct regions were examined, separated by the Subantarctic Front (SAF). The region south of the SAF displays a strong summer phytoplankton bloom of up to -28 mmol C m -2 d -1 within a calm area, constrained by physics and topography. On an annual basis, this region is a 6-fold more important sink than that deduced from Takahashi climatology, highlighting the importance of key-areas separate examination before proceeding to spatial integration. Our data point towards a decadal decline of the CO 2 sink in the Southern part of the SAF, most probably due to both warming and less Fe input to surface waters from reduced water mixing. Article in Journal/Newspaper Southern Ocean HAL Sorbonne Université Geophysical Research Letters 38 23 n/a n/a |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] |
spellingShingle |
[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] Lourantou, Anna Metzl, Nicolas Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
topic_facet |
[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] |
description |
International audience The fate of the Southern Ocean atmospheric CO 2 sink is under question. Here we assess seasonal to decadal changes of surface f CO 2 within an extended sink area along the track between Kerguelen and Amsterdam islands in the subantarctic zone. Data from 17 oceanographic cruises were used, from 1991 to 2011 and two distinct regions were examined, separated by the Subantarctic Front (SAF). The region south of the SAF displays a strong summer phytoplankton bloom of up to -28 mmol C m -2 d -1 within a calm area, constrained by physics and topography. On an annual basis, this region is a 6-fold more important sink than that deduced from Takahashi climatology, highlighting the importance of key-areas separate examination before proceeding to spatial integration. Our data point towards a decadal decline of the CO 2 sink in the Southern part of the SAF, most probably due to both warming and less Fe input to surface waters from reduced water mixing. |
author2 |
Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Lourantou, Anna Metzl, Nicolas |
author_facet |
Lourantou, Anna Metzl, Nicolas |
author_sort |
Lourantou, Anna |
title |
Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
title_short |
Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
title_full |
Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
title_fullStr |
Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
title_full_unstemmed |
Decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
title_sort |
decadal evolution of carbon sink within a strong bloom area in the subantarctic zone |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.science/hal-00755350 https://hal.science/hal-00755350/document https://hal.science/hal-00755350/file/2011GL049614.pdf https://doi.org/10.1029/2011GL049614 |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00755350 Geophysical Research Letters, 2011, 38, pp.23608. ⟨10.1029/2011GL049614⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2011GL049614 hal-00755350 https://hal.science/hal-00755350 https://hal.science/hal-00755350/document https://hal.science/hal-00755350/file/2011GL049614.pdf BIBCODE: 2011GeoRL.3823608L doi:10.1029/2011GL049614 WOS: 000298260900001 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2011GL049614 |
container_title |
Geophysical Research Letters |
container_volume |
38 |
container_issue |
23 |
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1799467352451973120 |