Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau

Autores
Spolaor, Andrea; Burgay, François; Fernandez, Rafael Pedro; Turetta, Carla; Cuevas, Carlos A.; Kim, Kitae; Kinnison, Douglas E.; Lamarque, Jean-Francoise; de Blasi, Fabrizio; Barbaro, Elena; Corella, Juan Pablo; Barbante, Carlo; Saiz López, Alfonso; Vallelonga, Paul; Massimo, Frezzotti; Barbante, Carlo; Saiz López, Alfonso
Año de publicación
2022
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Polar stratospheric ozone has decreased since the 1970s due to anthropogenic emissions of chlorofluorocarbons and halons, resulting in the formation of an ozone hole over Antarctica. The effects of the ozone hole and the associated increase in incoming UV-radiation on terrestrial and marine ecosystems are well studied, however the impact on geochemical cycles of ice photoactive elements, such as iodine, remains almost unexplored. Here, we present the first iodine record from the inner Antarctic Plateau (Dome C) that covers approximately the last 212 years (1800-2012 CE). Our results show that iodine concentration in ice remained fairly constant during the pre-ozone hole period (1800-1974 CE) but has declined twofold since the onset of the ozone hole era (~1975 CE), closely tracking the total ozone evolution over Antarctica. Based on ice core observations, laboratory measurements and chemistry-climate model simulations, we propose that the iodine decrease since ~1975 is caused by enhanced iodine re-emission from snowpack due to the ozone hole driven increase in UV-radiation reaching the Antarctic Plateau. These findings suggest the potential for ice core iodine records from the inner Antarctic Plateau as an archive for past stratospheric ozone trends.
Fil: Spolaor, Andrea. National Research Council of Italy. Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; Italia
Fil: Burgay, François. Università Ca’ Foscari di Venezia; Italia. Paul Scherrer Institut. Laboratory of Environmental Chemistry; Suiza
Fil: Fernandez, Rafael Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Turetta, Carla. National Research Council of Italy, Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; Italia
Fil: Cuevas, Carlos A.. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
Fil: Kim, Kitae. Korea Polar Research Institute; Corea del Sur
Fil: Kinnison, Douglas E.. National Center for Atmospheric Research; Estados Unidos
Fil: Lamarque, Jean-Francoise. National Center for Atmospheric Research; Estados Unidos
Fil: de Blasi, Fabrizio. National Research Council of Italy, Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; Italia
Fil: Barbaro, Elena. National Research Council of Italy, Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; Italia
Fil: Corella, Juan Pablo. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
Fil: Barbante, Carlo. National Research Council of Italy, Institute of Polar Sciences; Italia
Fil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
Fil: Vallelonga, Paul. University of Copenhagen, Physics of Ice, Climate and Earth, Niels Bohr Institute; Dinamarca
Fil: Massimo, Frezzotti. Università Roma Tre III; Italia
Fil: Barbante, Carlo. National Research Council of Italy, Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; Italia
Fil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
European Geosciences Union General Assembly
Viena
Austria
Copernicus Meetings
Materia
Iodine geochemistry
Ozone hole
Dome-C
Ice-core halogens
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/238300
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/238300
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Antarctic ozone hole modifies iodine geochemistry on the Antarctic PlateauSpolaor, AndreaBurgay, FrançoisFernandez, Rafael PedroTuretta, CarlaCuevas, Carlos A.Kim, KitaeKinnison, Douglas E.Lamarque, Jean-Francoisede Blasi, FabrizioBarbaro, ElenaCorella, Juan PabloBarbante, CarloSaiz López, AlfonsoVallelonga, PaulMassimo, FrezzottiBarbante, CarloSaiz López, AlfonsoIodine geochemistryOzone holeDome-CIce-core halogenshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Polar stratospheric ozone has decreased since the 1970s due to anthropogenic emissions of chlorofluorocarbons and halons, resulting in the formation of an ozone hole over Antarctica. The effects of the ozone hole and the associated increase in incoming UV-radiation on terrestrial and marine ecosystems are well studied, however the impact on geochemical cycles of ice photoactive elements, such as iodine, remains almost unexplored. Here, we present the first iodine record from the inner Antarctic Plateau (Dome C) that covers approximately the last 212 years (1800-2012 CE). Our results show that iodine concentration in ice remained fairly constant during the pre-ozone hole period (1800-1974 CE) but has declined twofold since the onset of the ozone hole era (~1975 CE), closely tracking the total ozone evolution over Antarctica. Based on ice core observations, laboratory measurements and chemistry-climate model simulations, we propose that the iodine decrease since ~1975 is caused by enhanced iodine re-emission from snowpack due to the ozone hole driven increase in UV-radiation reaching the Antarctic Plateau. These findings suggest the potential for ice core iodine records from the inner Antarctic Plateau as an archive for past stratospheric ozone trends.Fil: Spolaor, Andrea. National Research Council of Italy. Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; ItaliaFil: Burgay, François. Università Ca’ Foscari di Venezia; Italia. Paul Scherrer Institut. Laboratory of Environmental Chemistry; SuizaFil: Fernandez, Rafael Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Turetta, Carla. National Research Council of Italy, Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; ItaliaFil: Cuevas, Carlos A.. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; EspañaFil: Kim, Kitae. Korea Polar Research Institute; Corea del SurFil: Kinnison, Douglas E.. National Center for Atmospheric Research; Estados UnidosFil: Lamarque, Jean-Francoise. National Center for Atmospheric Research; Estados UnidosFil: de Blasi, Fabrizio. National Research Council of Italy, Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; ItaliaFil: Barbaro, Elena. National Research Council of Italy, Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; ItaliaFil: Corella, Juan Pablo. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; EspañaFil: Barbante, Carlo. National Research Council of Italy, Institute of Polar Sciences; ItaliaFil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; EspañaFil: Vallelonga, Paul. University of Copenhagen, Physics of Ice, Climate and Earth, Niels Bohr Institute; DinamarcaFil: Massimo, Frezzotti. Università Roma Tre III; ItaliaFil: Barbante, Carlo. National Research Council of Italy, Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; ItaliaFil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; EspañaEuropean Geosciences Union General AssemblyVienaAustriaCopernicus MeetingsCopernicus Publications2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/238300Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau; European Geosciences Union General Assembly ; Viena; Austria; 2022CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://meetingorganizer.copernicus.org/EGU22/EGU22-3777.htmlinfo:eu-repo/semantics/altIdentifier/url/https://doi.org/10.5194/egusphere-egu22-3777Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:44:26Zoai:ri.conicet.gov.ar:11336/238300instacron: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 09:44:26.427CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau
title Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau
spellingShingle Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau
Spolaor, Andrea
Iodine geochemistry
Ozone hole
Dome-C
Ice-core halogens
title_short Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau
title_full Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau
title_fullStr Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau
title_full_unstemmed Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau
title_sort Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau
dc.creator.none.fl_str_mv Spolaor, Andrea
Burgay, François
Fernandez, Rafael Pedro
Turetta, Carla
Cuevas, Carlos A.
Kim, Kitae
Kinnison, Douglas E.
Lamarque, Jean-Francoise
de Blasi, Fabrizio
Barbaro, Elena
Corella, Juan Pablo
Barbante, Carlo
Saiz López, Alfonso
Vallelonga, Paul
Massimo, Frezzotti
Barbante, Carlo
Saiz López, Alfonso
author Spolaor, Andrea
author_facet Spolaor, Andrea
Burgay, François
Fernandez, Rafael Pedro
Turetta, Carla
Cuevas, Carlos A.
Kim, Kitae
Kinnison, Douglas E.
Lamarque, Jean-Francoise
de Blasi, Fabrizio
Barbaro, Elena
Corella, Juan Pablo
Barbante, Carlo
Saiz López, Alfonso
Vallelonga, Paul
Massimo, Frezzotti
author_role author
author2 Burgay, François
Fernandez, Rafael Pedro
Turetta, Carla
Cuevas, Carlos A.
Kim, Kitae
Kinnison, Douglas E.
Lamarque, Jean-Francoise
de Blasi, Fabrizio
Barbaro, Elena
Corella, Juan Pablo
Barbante, Carlo
Saiz López, Alfonso
Vallelonga, Paul
Massimo, Frezzotti
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Iodine geochemistry
Ozone hole
Dome-C
Ice-core halogens
topic Iodine geochemistry
Ozone hole
Dome-C
Ice-core halogens
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Polar stratospheric ozone has decreased since the 1970s due to anthropogenic emissions of chlorofluorocarbons and halons, resulting in the formation of an ozone hole over Antarctica. The effects of the ozone hole and the associated increase in incoming UV-radiation on terrestrial and marine ecosystems are well studied, however the impact on geochemical cycles of ice photoactive elements, such as iodine, remains almost unexplored. Here, we present the first iodine record from the inner Antarctic Plateau (Dome C) that covers approximately the last 212 years (1800-2012 CE). Our results show that iodine concentration in ice remained fairly constant during the pre-ozone hole period (1800-1974 CE) but has declined twofold since the onset of the ozone hole era (~1975 CE), closely tracking the total ozone evolution over Antarctica. Based on ice core observations, laboratory measurements and chemistry-climate model simulations, we propose that the iodine decrease since ~1975 is caused by enhanced iodine re-emission from snowpack due to the ozone hole driven increase in UV-radiation reaching the Antarctic Plateau. These findings suggest the potential for ice core iodine records from the inner Antarctic Plateau as an archive for past stratospheric ozone trends.
Fil: Spolaor, Andrea. National Research Council of Italy. Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; Italia
Fil: Burgay, François. Università Ca’ Foscari di Venezia; Italia. Paul Scherrer Institut. Laboratory of Environmental Chemistry; Suiza
Fil: Fernandez, Rafael Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Turetta, Carla. National Research Council of Italy, Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; Italia
Fil: Cuevas, Carlos A.. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
Fil: Kim, Kitae. Korea Polar Research Institute; Corea del Sur
Fil: Kinnison, Douglas E.. National Center for Atmospheric Research; Estados Unidos
Fil: Lamarque, Jean-Francoise. National Center for Atmospheric Research; Estados Unidos
Fil: de Blasi, Fabrizio. National Research Council of Italy, Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; Italia
Fil: Barbaro, Elena. National Research Council of Italy, Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; Italia
Fil: Corella, Juan Pablo. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
Fil: Barbante, Carlo. National Research Council of Italy, Institute of Polar Sciences; Italia
Fil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
Fil: Vallelonga, Paul. University of Copenhagen, Physics of Ice, Climate and Earth, Niels Bohr Institute; Dinamarca
Fil: Massimo, Frezzotti. Università Roma Tre III; Italia
Fil: Barbante, Carlo. National Research Council of Italy, Institute of Polar Sciences; Italia. Università Ca’ Foscari di Venezia; Italia
Fil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
European Geosciences Union General Assembly
Viena
Austria
Copernicus Meetings
description Polar stratospheric ozone has decreased since the 1970s due to anthropogenic emissions of chlorofluorocarbons and halons, resulting in the formation of an ozone hole over Antarctica. The effects of the ozone hole and the associated increase in incoming UV-radiation on terrestrial and marine ecosystems are well studied, however the impact on geochemical cycles of ice photoactive elements, such as iodine, remains almost unexplored. Here, we present the first iodine record from the inner Antarctic Plateau (Dome C) that covers approximately the last 212 years (1800-2012 CE). Our results show that iodine concentration in ice remained fairly constant during the pre-ozone hole period (1800-1974 CE) but has declined twofold since the onset of the ozone hole era (~1975 CE), closely tracking the total ozone evolution over Antarctica. Based on ice core observations, laboratory measurements and chemistry-climate model simulations, we propose that the iodine decrease since ~1975 is caused by enhanced iodine re-emission from snowpack due to the ozone hole driven increase in UV-radiation reaching the Antarctic Plateau. These findings suggest the potential for ice core iodine records from the inner Antarctic Plateau as an archive for past stratospheric ozone trends.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Congreso
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/238300
Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau; European Geosciences Union General Assembly ; Viena; Austria; 2022
CONICET Digital
CONICET
url http://hdl.handle.net/11336/238300
identifier_str_mv Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau; European Geosciences Union General Assembly ; Viena; Austria; 2022
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://meetingorganizer.copernicus.org/EGU22/EGU22-3777.html
info:eu-repo/semantics/altIdentifier/url/https://doi.org/10.5194/egusphere-egu22-3777
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Copernicus Publications
publisher.none.fl_str_mv Copernicus Publications
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
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score 13.13397

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