Anthropogenic CO2 and ocean acidification in Argentine Basin Water Masses over almost five decades of observations

9 pages, 5 figures, 2 tables.-- Under a Creative Commons license

Detalles Bibliográficos
Autores: Fontela, Marcos, Velo, Antón, Gilcoto, Miguel, Pérez, Fiz F.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/236658
Acceso en línea:http://hdl.handle.net/10261/236658
Access Level:acceso abierto
Palabra clave:Ocean acidification
Anthropogenic carbon
Carbonate
Deoxygenation
Argentine basin
Western South Atlantic
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spelling Anthropogenic CO2 and ocean acidification in Argentine Basin Water Masses over almost five decades of observationsFontela, MarcosVelo, AntónGilcoto, MiguelPérez, Fiz F.Ocean acidificationAnthropogenic carbonCarbonateDeoxygenationArgentine basinWestern South Atlantic9 pages, 5 figures, 2 tables.-- Under a Creative Commons licenseThe chemical conditions of the Argentine Basin (western South Atlantic Ocean) water masses are evaluated with measurements from eleven hydrographic cruises to detect and quantify anthropogenic and natural stressors in the ocean carbon system. The database covers almost half-century (1972–2019), a time-span where the mean annual atmospheric carbon dioxide concentration (CO2atm) increased from 325 to 408 ppm of volume (ppm). This increase of atmospheric CO2 (83 ppm, the 64% of the total anthropogenic signal in the atmosphere) leads to an increase in anthropogenic carbon (Cant) across all the water column and the consequent ocean acidification: a decrease in excess carbonate that is unequivocal in the upper (South Atlantic Central Water, SACW) and intermediate water masses (Sub Antarctic Mode Water, SAMW and Antarctic Intermediate Water, AAIW). For each additional ppm in CO2atm the water masses SACW, SAMW and AAIW lose excess carbonate at a rate of 0.39 ± 0.04, 0.47 ± 0.05 and 0.23 ± 0.03 μmol·kg−1·ppm−1 respectively. Modal and intermediate water masses in the Argentine Basin are very sensitive to carbon increases due low buffering capacity. The large rate of AAIW acidification is the synergic effect of carbon uptake combined with deoxygenation and increased remineralization of organic matter. If CO2 emissions follows the path of business-as-usual emissions (SSP 5.85), SACW would become undersaturated with respect to aragonite at the end of the century. The undersaturation in AAIW is virtually unavoidableFor this work M. Fontela was funded by Portuguese national funds from FCT - Foundation for Science and Technology through project UIDB/Multi/04326/2020 and CEECINST/00114/2018. A. Velo and F. F. Pérez were supported by the BOCATS2 Project (PID2019-104279GB-C21) co-funded by the Spanish Government and the Fondo Europeo de Desarrollo Regional (FEDER). A. Velo, M.Gilcoto and F. F. Pérez were supported by the European Union‘s Horizon 2020 research and innovation program under grant agreement No 820989 (project COMFORTPeer reviewedElsevierEuropean CommissionFundação para a Ciência e a Tecnologia (Portugal)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202120212021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/236658reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/820989info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104279GB-C21Fontela, Marcos; Velo, A.; Gilcoto, Miguel ; Pérez, Fiz F.; 2021; Supplementary information of Anthropogenic CO2 and ocean acidification in Argentine Basin Water Masses over almost five decades of observations [Dataset]; Elsevier; https://doi.org/10.1016/j.scitotenv.2021.146570Fontela, Marcos; 2021; mfontela/ArgentineBasin: Tracer trends in Argentine Basin Water Masses [Software]. Zenodo; Version 1; http://doi.org/10.5281/zenodo.4589961Fontela, Marcos. https://github.com/mfontela/ArgentineBasin?https://doi.org/10.1016/j.scitotenv.2021.146570Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2366582026-05-22T06:33:51Z
dc.title.none.fl_str_mv Anthropogenic CO2 and ocean acidification in Argentine Basin Water Masses over almost five decades of observations
title Anthropogenic CO2 and ocean acidification in Argentine Basin Water Masses over almost five decades of observations
spellingShingle Anthropogenic CO2 and ocean acidification in Argentine Basin Water Masses over almost five decades of observations
Fontela, Marcos
Ocean acidification
Anthropogenic carbon
Carbonate
Deoxygenation
Argentine basin
Western South Atlantic
title_short Anthropogenic CO2 and ocean acidification in Argentine Basin Water Masses over almost five decades of observations
title_full Anthropogenic CO2 and ocean acidification in Argentine Basin Water Masses over almost five decades of observations
title_fullStr Anthropogenic CO2 and ocean acidification in Argentine Basin Water Masses over almost five decades of observations
title_full_unstemmed Anthropogenic CO2 and ocean acidification in Argentine Basin Water Masses over almost five decades of observations
title_sort Anthropogenic CO2 and ocean acidification in Argentine Basin Water Masses over almost five decades of observations
dc.creator.none.fl_str_mv Fontela, Marcos
Velo, Antón
Gilcoto, Miguel
Pérez, Fiz F.
author Fontela, Marcos
author_facet Fontela, Marcos
Velo, Antón
Gilcoto, Miguel
Pérez, Fiz F.
author_role author
author2 Velo, Antón
Gilcoto, Miguel
Pérez, Fiz F.
author2_role author
author
author
dc.contributor.none.fl_str_mv European Commission
Fundação para a Ciência e a Tecnologia (Portugal)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Ocean acidification
Anthropogenic carbon
Carbonate
Deoxygenation
Argentine basin
Western South Atlantic
topic Ocean acidification
Anthropogenic carbon
Carbonate
Deoxygenation
Argentine basin
Western South Atlantic
description 9 pages, 5 figures, 2 tables.-- Under a Creative Commons license
publishDate 2021
dc.date.none.fl_str_mv 2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/236658
url http://hdl.handle.net/10261/236658
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/820989
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104279GB-C21
Fontela, Marcos; Velo, A.; Gilcoto, Miguel ; Pérez, Fiz F.; 2021; Supplementary information of Anthropogenic CO2 and ocean acidification in Argentine Basin Water Masses over almost five decades of observations [Dataset]; Elsevier; https://doi.org/10.1016/j.scitotenv.2021.146570
Fontela, Marcos; 2021; mfontela/ArgentineBasin: Tracer trends in Argentine Basin Water Masses [Software]. Zenodo; Version 1; http://doi.org/10.5281/zenodo.4589961
Fontela, Marcos. https://github.com/mfontela/ArgentineBasin?
https://doi.org/10.1016/j.scitotenv.2021.146570
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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