CDOM sources and photobleaching control quantum yields for oceanic DMS photolysis

Autores
Galí, Martí; Kieber, David J.; Romera Castillo, Cristina; Kinsey, Joanna D.; Devred, Emmanuel; Pérez, Gonzalo; Westby, George R.; Marrasé, Cèlia; Babin, Marcel; Levasseur, Maurice; Duarte, Carlos M.; Agusti, Susana; Simó, Rafael
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Photolysis is a major removal pathway for the biogenic gas dimethylsulfide (DMS) in the surface ocean. Here we tested the hypothesis that apparent quantum yields (AQY) for DMS photolysis varied according to the quantity and quality of its photosensitizers, chiefly chromophoric dissolved organic matter (CDOM) and nitrate. AQY compiled from the literature and unpublished studies ranged across 3 orders of magnitude at the 330 nm reference wavelength. The smallest AQY(330) were observed in coastal waters receiving major riverine inputs of terrestrial CDOM (0.06-0.5 m3 (mol quanta)-1). In open-ocean waters, AQY(330) generally ranged between 1 and 10 m3 (mol quanta) -1. The largest AQY(330), up to 34 m3 (mol quanta)-1), were seen in the Southern Ocean potentially associated with upwelling. Despite the large AQY variability, daily photolysis rate constants at the sea surface spanned a smaller range (0.04-3.7 d-1), mainly because of the inverse relationship between CDOM absorption and AQY. Comparison of AQY(330) with CDOM spectral signatures suggests there is an interplay between CDOM origin (terrestrial versus marine) and photobleaching that controls variations in AQYs, with a secondary role for nitrate. Our results can be used for regional or large-scale assessment of DMS photolysis rates in future studies.
Fil: Galí, Martí. Laval University; Canadá
Fil: Kieber, David J.. State University of New York; Estados Unidos
Fil: Romera Castillo, Cristina. Miami University; Estados Unidos. Universidad de Viena; Austria
Fil: Kinsey, Joanna D.. State University of New York; Estados Unidos. North Carolina State University; Estados Unidos
Fil: Devred, Emmanuel. Laval University; Canadá. Bedford Institute of Oceanography; Canadá
Fil: Pérez, Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Westby, George R.. State University of New York; Estados Unidos
Fil: Marrasé, Cèlia. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar. Biología Marina y Oceanografía; España
Fil: Babin, Marcel. Laval University; Canadá
Fil: Levasseur, Maurice. Laval University; Canadá
Fil: Duarte, Carlos M.. King Abdullah University of Science and Technology; Arabia Saudita
Fil: Agusti, Susana. King Abdullah University of Science and Technology; Arabia Saudita
Fil: Simó, Rafael. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar. Biología Marina y Oceanografía; España
Materia
Dms
Cdom
Photobleaching
Quantum Yields
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/68983
Acceder
id CONICETDig_25a28dcf4425dac4b7f1cd27b768afcd
oai_identifier_str oai:ri.conicet.gov.ar:11336/68983
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling CDOM sources and photobleaching control quantum yields for oceanic DMS photolysisGalí, MartíKieber, David J.Romera Castillo, CristinaKinsey, Joanna D.Devred, EmmanuelPérez, GonzaloWestby, George R.Marrasé, CèliaBabin, MarcelLevasseur, MauriceDuarte, Carlos M.Agusti, SusanaSimó, RafaelDmsCdomPhotobleachingQuantum Yieldshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Photolysis is a major removal pathway for the biogenic gas dimethylsulfide (DMS) in the surface ocean. Here we tested the hypothesis that apparent quantum yields (AQY) for DMS photolysis varied according to the quantity and quality of its photosensitizers, chiefly chromophoric dissolved organic matter (CDOM) and nitrate. AQY compiled from the literature and unpublished studies ranged across 3 orders of magnitude at the 330 nm reference wavelength. The smallest AQY(330) were observed in coastal waters receiving major riverine inputs of terrestrial CDOM (0.06-0.5 m3 (mol quanta)-1). In open-ocean waters, AQY(330) generally ranged between 1 and 10 m3 (mol quanta) -1. The largest AQY(330), up to 34 m3 (mol quanta)-1), were seen in the Southern Ocean potentially associated with upwelling. Despite the large AQY variability, daily photolysis rate constants at the sea surface spanned a smaller range (0.04-3.7 d-1), mainly because of the inverse relationship between CDOM absorption and AQY. Comparison of AQY(330) with CDOM spectral signatures suggests there is an interplay between CDOM origin (terrestrial versus marine) and photobleaching that controls variations in AQYs, with a secondary role for nitrate. Our results can be used for regional or large-scale assessment of DMS photolysis rates in future studies.Fil: Galí, Martí. Laval University; CanadáFil: Kieber, David J.. State University of New York; Estados UnidosFil: Romera Castillo, Cristina. Miami University; Estados Unidos. Universidad de Viena; AustriaFil: Kinsey, Joanna D.. State University of New York; Estados Unidos. North Carolina State University; Estados UnidosFil: Devred, Emmanuel. Laval University; Canadá. Bedford Institute of Oceanography; CanadáFil: Pérez, Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Westby, George R.. State University of New York; Estados UnidosFil: Marrasé, Cèlia. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar. Biología Marina y Oceanografía; EspañaFil: Babin, Marcel. Laval University; CanadáFil: Levasseur, Maurice. Laval University; CanadáFil: Duarte, Carlos M.. King Abdullah University of Science and Technology; Arabia SauditaFil: Agusti, Susana. King Abdullah University of Science and Technology; Arabia SauditaFil: Simó, Rafael. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar. Biología Marina y Oceanografía; EspañaAmerican Chemical Society2016-11-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68983Galí, Martí; Kieber, David J.; Romera Castillo, Cristina; Kinsey, Joanna D.; Devred, Emmanuel; et al.; CDOM sources and photobleaching control quantum yields for oceanic DMS photolysis; American Chemical Society; Environmental Science & Technology; 50; 24; 14-11-2016; 13361-133700013-936XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/acs.est.6b04278info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/acs.est.6b04278info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:49:00Zoai:ri.conicet.gov.ar:11336/68983instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:49:01.278CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv CDOM sources and photobleaching control quantum yields for oceanic DMS photolysis
title CDOM sources and photobleaching control quantum yields for oceanic DMS photolysis
spellingShingle CDOM sources and photobleaching control quantum yields for oceanic DMS photolysis
Galí, Martí
Dms
Cdom
Photobleaching
Quantum Yields
title_short CDOM sources and photobleaching control quantum yields for oceanic DMS photolysis
title_full CDOM sources and photobleaching control quantum yields for oceanic DMS photolysis
title_fullStr CDOM sources and photobleaching control quantum yields for oceanic DMS photolysis
title_full_unstemmed CDOM sources and photobleaching control quantum yields for oceanic DMS photolysis
title_sort CDOM sources and photobleaching control quantum yields for oceanic DMS photolysis
dc.creator.none.fl_str_mv Galí, Martí
Kieber, David J.
Romera Castillo, Cristina
Kinsey, Joanna D.
Devred, Emmanuel
Pérez, Gonzalo
Westby, George R.
Marrasé, Cèlia
Babin, Marcel
Levasseur, Maurice
Duarte, Carlos M.
Agusti, Susana
Simó, Rafael
author Galí, Martí
author_facet Galí, Martí
Kieber, David J.
Romera Castillo, Cristina
Kinsey, Joanna D.
Devred, Emmanuel
Pérez, Gonzalo
Westby, George R.
Marrasé, Cèlia
Babin, Marcel
Levasseur, Maurice
Duarte, Carlos M.
Agusti, Susana
Simó, Rafael
author_role author
author2 Kieber, David J.
Romera Castillo, Cristina
Kinsey, Joanna D.
Devred, Emmanuel
Pérez, Gonzalo
Westby, George R.
Marrasé, Cèlia
Babin, Marcel
Levasseur, Maurice
Duarte, Carlos M.
Agusti, Susana
Simó, Rafael
author2_role author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Dms
Cdom
Photobleaching
Quantum Yields
topic Dms
Cdom
Photobleaching
Quantum Yields
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Photolysis is a major removal pathway for the biogenic gas dimethylsulfide (DMS) in the surface ocean. Here we tested the hypothesis that apparent quantum yields (AQY) for DMS photolysis varied according to the quantity and quality of its photosensitizers, chiefly chromophoric dissolved organic matter (CDOM) and nitrate. AQY compiled from the literature and unpublished studies ranged across 3 orders of magnitude at the 330 nm reference wavelength. The smallest AQY(330) were observed in coastal waters receiving major riverine inputs of terrestrial CDOM (0.06-0.5 m3 (mol quanta)-1). In open-ocean waters, AQY(330) generally ranged between 1 and 10 m3 (mol quanta) -1. The largest AQY(330), up to 34 m3 (mol quanta)-1), were seen in the Southern Ocean potentially associated with upwelling. Despite the large AQY variability, daily photolysis rate constants at the sea surface spanned a smaller range (0.04-3.7 d-1), mainly because of the inverse relationship between CDOM absorption and AQY. Comparison of AQY(330) with CDOM spectral signatures suggests there is an interplay between CDOM origin (terrestrial versus marine) and photobleaching that controls variations in AQYs, with a secondary role for nitrate. Our results can be used for regional or large-scale assessment of DMS photolysis rates in future studies.
Fil: Galí, Martí. Laval University; Canadá
Fil: Kieber, David J.. State University of New York; Estados Unidos
Fil: Romera Castillo, Cristina. Miami University; Estados Unidos. Universidad de Viena; Austria
Fil: Kinsey, Joanna D.. State University of New York; Estados Unidos. North Carolina State University; Estados Unidos
Fil: Devred, Emmanuel. Laval University; Canadá. Bedford Institute of Oceanography; Canadá
Fil: Pérez, Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Westby, George R.. State University of New York; Estados Unidos
Fil: Marrasé, Cèlia. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar. Biología Marina y Oceanografía; España
Fil: Babin, Marcel. Laval University; Canadá
Fil: Levasseur, Maurice. Laval University; Canadá
Fil: Duarte, Carlos M.. King Abdullah University of Science and Technology; Arabia Saudita
Fil: Agusti, Susana. King Abdullah University of Science and Technology; Arabia Saudita
Fil: Simó, Rafael. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar. Biología Marina y Oceanografía; España
description Photolysis is a major removal pathway for the biogenic gas dimethylsulfide (DMS) in the surface ocean. Here we tested the hypothesis that apparent quantum yields (AQY) for DMS photolysis varied according to the quantity and quality of its photosensitizers, chiefly chromophoric dissolved organic matter (CDOM) and nitrate. AQY compiled from the literature and unpublished studies ranged across 3 orders of magnitude at the 330 nm reference wavelength. The smallest AQY(330) were observed in coastal waters receiving major riverine inputs of terrestrial CDOM (0.06-0.5 m3 (mol quanta)-1). In open-ocean waters, AQY(330) generally ranged between 1 and 10 m3 (mol quanta) -1. The largest AQY(330), up to 34 m3 (mol quanta)-1), were seen in the Southern Ocean potentially associated with upwelling. Despite the large AQY variability, daily photolysis rate constants at the sea surface spanned a smaller range (0.04-3.7 d-1), mainly because of the inverse relationship between CDOM absorption and AQY. Comparison of AQY(330) with CDOM spectral signatures suggests there is an interplay between CDOM origin (terrestrial versus marine) and photobleaching that controls variations in AQYs, with a secondary role for nitrate. Our results can be used for regional or large-scale assessment of DMS photolysis rates in future studies.
publishDate 2016
dc.date.none.fl_str_mv 2016-11-14
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/68983
Galí, Martí; Kieber, David J.; Romera Castillo, Cristina; Kinsey, Joanna D.; Devred, Emmanuel; et al.; CDOM sources and photobleaching control quantum yields for oceanic DMS photolysis; American Chemical Society; Environmental Science & Technology; 50; 24; 14-11-2016; 13361-13370
0013-936X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68983
identifier_str_mv Galí, Martí; Kieber, David J.; Romera Castillo, Cristina; Kinsey, Joanna D.; Devred, Emmanuel; et al.; CDOM sources and photobleaching control quantum yields for oceanic DMS photolysis; American Chemical Society; Environmental Science & Technology; 50; 24; 14-11-2016; 13361-13370
0013-936X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/acs.est.6b04278
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/acs.est.6b04278
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842268949292515328
score 13.13397

Publicaciones similares