Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau

dc.creatorSpolaor, Andrea
dc.creatorBurgay, François
dc.creatorFernandez, Rafael Pedro
dc.creatorTuretta, Clara
dc.creatorCuevas, Carlos A.
dc.creatorKim, Kitae
dc.creatorKinnison, Douglas E.
dc.creatorLamarque, Jean-François
dc.creatorde Blasi, Fabrizio
dc.creatorBarbaro, Elena
dc.creatorCorella, Juan Pablo
dc.creatorVallelonga, Paul
dc.creatorFrezzotti, Massimo
dc.creatorBarbante, Carlo
dc.creatorSaiz López, Alfonso
dc.date2021-12
dc.date.accessioned2023-08-30T23:47:33Z
dc.date.available2023-08-30T23:47:33Z
dc.identifierhttp://hdl.handle.net/11336/173339
dc.identifierSpolaor, Andrea; Burgay, François; Fernandez, Rafael Pedro; Turetta, Clara; Cuevas, Carlos A.; et al.; Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau; Nature Publishing Group; Nature Communications; 12; 1; 12-2021; 1-9
dc.identifier2041-1723
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8542785
dc.descriptionPolar 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 established; however, the impact on geochemical cycles of ice photoactive elements, such as iodine, remains mostly 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 the iodine concentration in ice remained 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 to be as an archive for past stratospheric ozone trends.
dc.descriptionFil: Spolaor, Andrea. Consiglio Nazionale Delle Ricerche. Istituto Di Scienze Polari.; Italia. Universita' Ca' Foscari Di Venezia; Italia
dc.descriptionFil: Burgay, François. Universita' Ca' Foscari Di Venezia; Italia. Paul Scherrer Institute; Suiza
dc.descriptionFil: 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
dc.descriptionFil: Turetta, Clara. Consiglio Nazionale Delle Ricerche. Istituto Di Scienze Polari.; Italia. Universita' Ca' Foscari Di Venezia; Italia
dc.descriptionFil: Cuevas, Carlos A.. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
dc.descriptionFil: Kim, Kitae. Korea Polar Research Institute; Corea del Sur
dc.descriptionFil: Kinnison, Douglas E.. National Center for Atmospheric Research; Estados Unidos
dc.descriptionFil: Lamarque, Jean-François. National Center for Atmospheric Research; Estados Unidos
dc.descriptionFil: de Blasi, Fabrizio. Consiglio Nazionale Delle Ricerche. Istituto Di Scienze Polari.; Italia. Universita' Ca' Foscari Di Venezia; Italia
dc.descriptionFil: Barbaro, Elena. Consiglio Nazionale Delle Ricerche. Istituto Di Scienze Polari.; Italia. Universita' Ca' Foscari Di Venezia; Italia
dc.descriptionFil: Corella, Juan Pablo. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
dc.descriptionFil: Vallelonga, Paul. Universidad de Copenhagen; Dinamarca. University of Western Australia; Australia
dc.descriptionFil: Frezzotti, Massimo. Università Roma Tre Iii. Dipartimento Di Scienze.; Italia
dc.descriptionFil: Barbante, Carlo. Consiglio Nazionale Delle Ricerche. Istituto Di Scienze Polari.; Italia. Universita' Ca' Foscari Di Venezia; Italia
dc.descriptionFil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherNature Publishing Group
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41467-021-26109-x
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-021-26109-x
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by/2.5/ar/
dc.subjectOZONE HOLE
dc.subjectIODINE RECYCLING
dc.subjectANTARCTIC PLATEAU
dc.subjectDOME-C
dc.subjecthttps://purl.org/becyt/ford/1.5
dc.subjecthttps://purl.org/becyt/ford/1
dc.titleAntarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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