Increased CO 2 outgassing in February-May 2010 in the tropical Atlantic following the 2009 Pacific El Niño
International audience The fugacity of CO 2 ( f CO 2 ) has been measured underway during the voyages of a merchant ship sailing from France to Brazil since 2008. High f CO 2 values are observed in 2010, between approximately 8°S and 8°N, and are particularly pronounced in boreal spring. These high v...
Published in: | Journal of Geophysical Research: Oceans |
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Main Authors: | , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2013
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Subjects: | |
Online Access: | https://hal.science/hal-00873395 https://hal.science/hal-00873395/document https://hal.science/hal-00873395/file/JGR%20Oceans%20-%202013%20-%20Lef%20vre%20-%20Increased%20CO2%20outgassing%20in%20February%25u2010May%202010%20in%20the%20tropical%20Atlantic%20following%20the%202009.pdf https://doi.org/10.1002/JGRC.20107 |
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ftunivnantes:oai:HAL:hal-00873395v1 |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
tropical Atlantic fugacity of CO 2 [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
spellingShingle |
tropical Atlantic fugacity of CO 2 [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] Lefèvre, Nathalie Caniaux, Guy Janicot, Serge Gueye, Abdou Karim Increased CO 2 outgassing in February-May 2010 in the tropical Atlantic following the 2009 Pacific El Niño |
topic_facet |
tropical Atlantic fugacity of CO 2 [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
description |
International audience The fugacity of CO 2 ( f CO 2 ) has been measured underway during the voyages of a merchant ship sailing from France to Brazil since 2008. High f CO 2 values are observed in 2010, between approximately 8°S and 8°N, and are particularly pronounced in boreal spring. These high values are explained by the anomalous situation occurring in the tropical Atlantic in 2010 after the 2009 El Niño in the Pacific. The weakening of the trade winds during the El Niño event contributes to an increase of sea surface temperatures in the tropical Atlantic and a northward shift of the intertropical convergence zone. The anomalous position of the intertropical convergence zone is accompanied by reduced precipitation in boreal spring and hence a higher than usual sea surface salinity. The year 2010 is also characterized by a strong positive Atlantic multidecadal oscillation index and a negative North Atlantic oscillation index that contribute to the tropical Atlantic warming. Positive anomalies of both surface temperature and salinity cause an increase of surface CO 2 , leading to a stronger outgassing of CO 2 in 2010 compared with 2009 and 2011. The main factor responsible for the CO 2 anomalies is the Pacific El Niño teleconnection. The Atlantic multidecadal oscillation index also contributes in the northern hemisphere, and the role of the North Atlantic oscillation is negligible. |
author2 |
Échanges dans la couche de surface : des pôles aux tropiques (SURF) 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)-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)) 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) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-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)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-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) Variabilité climatique tropicale et globale (VARCLIM) |
format |
Article in Journal/Newspaper |
author |
Lefèvre, Nathalie Caniaux, Guy Janicot, Serge Gueye, Abdou Karim |
author_facet |
Lefèvre, Nathalie Caniaux, Guy Janicot, Serge Gueye, Abdou Karim |
author_sort |
Lefèvre, Nathalie |
title |
Increased CO 2 outgassing in February-May 2010 in the tropical Atlantic following the 2009 Pacific El Niño |
title_short |
Increased CO 2 outgassing in February-May 2010 in the tropical Atlantic following the 2009 Pacific El Niño |
title_full |
Increased CO 2 outgassing in February-May 2010 in the tropical Atlantic following the 2009 Pacific El Niño |
title_fullStr |
Increased CO 2 outgassing in February-May 2010 in the tropical Atlantic following the 2009 Pacific El Niño |
title_full_unstemmed |
Increased CO 2 outgassing in February-May 2010 in the tropical Atlantic following the 2009 Pacific El Niño |
title_sort |
increased co 2 outgassing in february-may 2010 in the tropical atlantic following the 2009 pacific el niño |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-00873395 https://hal.science/hal-00873395/document https://hal.science/hal-00873395/file/JGR%20Oceans%20-%202013%20-%20Lef%20vre%20-%20Increased%20CO2%20outgassing%20in%20February%25u2010May%202010%20in%20the%20tropical%20Atlantic%20following%20the%202009.pdf https://doi.org/10.1002/JGRC.20107 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.science/hal-00873395 Journal of Geophysical Research. Oceans, 2013, 118, pp.1645-1657. ⟨10.1002/JGRC.20107⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/JGRC.20107 hal-00873395 https://hal.science/hal-00873395 https://hal.science/hal-00873395/document https://hal.science/hal-00873395/file/JGR%20Oceans%20-%202013%20-%20Lef%20vre%20-%20Increased%20CO2%20outgassing%20in%20February%25u2010May%202010%20in%20the%20tropical%20Atlantic%20following%20the%202009.pdf BIBCODE: 2013JGRC.118.1645L doi:10.1002/JGRC.20107 IRD: fdi:010059908 WOS: 000320324100002 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/JGRC.20107 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
118 |
container_issue |
4 |
container_start_page |
1645 |
op_container_end_page |
1657 |
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1766128917689663488 |
spelling |
ftunivnantes:oai:HAL:hal-00873395v1 2023-05-15T17:31:23+02:00 Increased CO 2 outgassing in February-May 2010 in the tropical Atlantic following the 2009 Pacific El Niño Lefèvre, Nathalie Caniaux, Guy Janicot, Serge Gueye, Abdou Karim Échanges dans la couche de surface : des pôles aux tropiques (SURF) 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)-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)) 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) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-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)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-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) Variabilité climatique tropicale et globale (VARCLIM) 2013-04 https://hal.science/hal-00873395 https://hal.science/hal-00873395/document https://hal.science/hal-00873395/file/JGR%20Oceans%20-%202013%20-%20Lef%20vre%20-%20Increased%20CO2%20outgassing%20in%20February%25u2010May%202010%20in%20the%20tropical%20Atlantic%20following%20the%202009.pdf https://doi.org/10.1002/JGRC.20107 en eng HAL CCSD Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1002/JGRC.20107 hal-00873395 https://hal.science/hal-00873395 https://hal.science/hal-00873395/document https://hal.science/hal-00873395/file/JGR%20Oceans%20-%202013%20-%20Lef%20vre%20-%20Increased%20CO2%20outgassing%20in%20February%25u2010May%202010%20in%20the%20tropical%20Atlantic%20following%20the%202009.pdf BIBCODE: 2013JGRC.118.1645L doi:10.1002/JGRC.20107 IRD: fdi:010059908 WOS: 000320324100002 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.science/hal-00873395 Journal of Geophysical Research. Oceans, 2013, 118, pp.1645-1657. ⟨10.1002/JGRC.20107⟩ tropical Atlantic fugacity of CO 2 [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2013 ftunivnantes https://doi.org/10.1002/JGRC.20107 2023-02-22T02:29:27Z International audience The fugacity of CO 2 ( f CO 2 ) has been measured underway during the voyages of a merchant ship sailing from France to Brazil since 2008. High f CO 2 values are observed in 2010, between approximately 8°S and 8°N, and are particularly pronounced in boreal spring. These high values are explained by the anomalous situation occurring in the tropical Atlantic in 2010 after the 2009 El Niño in the Pacific. The weakening of the trade winds during the El Niño event contributes to an increase of sea surface temperatures in the tropical Atlantic and a northward shift of the intertropical convergence zone. The anomalous position of the intertropical convergence zone is accompanied by reduced precipitation in boreal spring and hence a higher than usual sea surface salinity. The year 2010 is also characterized by a strong positive Atlantic multidecadal oscillation index and a negative North Atlantic oscillation index that contribute to the tropical Atlantic warming. Positive anomalies of both surface temperature and salinity cause an increase of surface CO 2 , leading to a stronger outgassing of CO 2 in 2010 compared with 2009 and 2011. The main factor responsible for the CO 2 anomalies is the Pacific El Niño teleconnection. The Atlantic multidecadal oscillation index also contributes in the northern hemisphere, and the role of the North Atlantic oscillation is negligible. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Université de Nantes: HAL-UNIV-NANTES Pacific Journal of Geophysical Research: Oceans 118 4 1645 1657 |