The influence of iodine on the Antarctic stratospheric ozone hole

10 pags., 6 figs., 2 tabs.

Detalhes bibliográficos
Autores: Cuevas, Carlos A., Fernández, Rafael P., Kinnison, Douglas E., Li, Qinyi, Lamarque, Jean-François, Trabelsi, T., Francisco, J.S., Solomon, S., Saiz-Lopez, A.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2022
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/277464
Acesso em linha:http://hdl.handle.net/10261/277464
Access Level:Acceso aberto
Palavra-chave:Iodine
Ozone depletion
Antarctic ozone hole
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spelling The influence of iodine on the Antarctic stratospheric ozone holeCuevas, Carlos A.Fernández, Rafael P.Kinnison, Douglas E.Li, QinyiLamarque, Jean-FrançoisTrabelsi, T.Francisco, J.S.Solomon, S.Saiz-Lopez, A.IodineOzone depletionAntarctic ozone hole10 pags., 6 figs., 2 tabs.The catalytic depletion of Antarctic stratospheric ozone is linked to anthropogenic emissions of chlorine and bromine. Despite its larger ozone-depleting efficiency, the contribution of oceanemitted iodine to ozone hole chemistry has not been evaluated, due to the negligible iodine levels previously reported to reach the stratosphere. Based on the recently observed range (0.77 ± 0.1 parts per trillion by volume [pptv]) of stratospheric iodine injection, we use the Whole Atmosphere Community Climate Model to assess the role of iodine in the formation and recent past evolution of the Antarctic ozone hole. Our 1980-2015 simulations indicate that iodine can significantly impact the lower part of the Antarctic ozone hole, contributing, on average, 10% of the lower stratospheric ozone loss during spring (up to 4.2% of the total stratospheric column). We find that the inclusion of iodine advances the beginning and delays the closure stages of the ozone hole by 3 d to 5 d, increasing its area and mass deficit by 11% and 20%, respectively. Despite being present in much smaller amounts, and due to faster gas-phase photochemical reactivation, iodine can dominate (∼73%) the halogen-mediated lower stratospheric ozone loss during summer and early fall, when the heterogeneous reactivation of inorganic chlorine and bromine reservoirs is reduced. The stratospheric ozone destruction caused by 0.77 pptv of iodine over Antarctica is equivalent to that of 3.1 (4.6) pptv of biogenic very short-lived bromocarbons during spring (rest of sunlit period). The relative contribution of iodine to future stratospheric ozone loss is likely to increase as anthropogenic chlorine and bromine emissions decline following the Montreal Protocol.This study received funding from the European Research Council Executive Agency under the European Union’s Horizon 2020 Research and Innovation Programme (Project ERC-2016-COG 726349 CLIMAHAL). D.E.K. is partly supported by NASA Grant 80NSSC19K0952. S.S. is partly supported by NSF-Atmospheric and Geospace Sciences Grant 1906719. The CESM project, which is supported primarily by the NSF, is led by the National Center for Atmospheric Research (NCAR), which is a major facility sponsored by the NSF under Cooperative Agreement 1852977. Computing resources, support, and data storage were provided by the Climate Simulation Laboratory at NCAR’s Computational and Information Systems Laboratory, sponsored by the NSF. R.P.F thanks the Argentine Ministry of Science and the National Research Council for financial support (grants PICT 2019-02187 and SIIP M032/3853).National Academy of Sciences (U.S.)European CommissionNASANational Science Foundation (US)National Center for Atmospheric Research (US)Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina)CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/277464reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/726349http://dx.doi.org/10.1073/pnas.2110864119Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2774642026-05-22T06:33:51Z
dc.title.none.fl_str_mv The influence of iodine on the Antarctic stratospheric ozone hole
title The influence of iodine on the Antarctic stratospheric ozone hole
spellingShingle The influence of iodine on the Antarctic stratospheric ozone hole
Cuevas, Carlos A.
Iodine
Ozone depletion
Antarctic ozone hole
title_short The influence of iodine on the Antarctic stratospheric ozone hole
title_full The influence of iodine on the Antarctic stratospheric ozone hole
title_fullStr The influence of iodine on the Antarctic stratospheric ozone hole
title_full_unstemmed The influence of iodine on the Antarctic stratospheric ozone hole
title_sort The influence of iodine on the Antarctic stratospheric ozone hole
dc.creator.none.fl_str_mv Cuevas, Carlos A.
Fernández, Rafael P.
Kinnison, Douglas E.
Li, Qinyi
Lamarque, Jean-François
Trabelsi, T.
Francisco, J.S.
Solomon, S.
Saiz-Lopez, A.
author Cuevas, Carlos A.
author_facet Cuevas, Carlos A.
Fernández, Rafael P.
Kinnison, Douglas E.
Li, Qinyi
Lamarque, Jean-François
Trabelsi, T.
Francisco, J.S.
Solomon, S.
Saiz-Lopez, A.
author_role author
author2 Fernández, Rafael P.
Kinnison, Douglas E.
Li, Qinyi
Lamarque, Jean-François
Trabelsi, T.
Francisco, J.S.
Solomon, S.
Saiz-Lopez, A.
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
NASA
National Science Foundation (US)
National Center for Atmospheric Research (US)
Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina)
CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Iodine
Ozone depletion
Antarctic ozone hole
topic Iodine
Ozone depletion
Antarctic ozone hole
description 10 pags., 6 figs., 2 tabs.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
2022
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/10261/277464
url http://hdl.handle.net/10261/277464
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/726349
http://dx.doi.org/10.1073/pnas.2110864119
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv National Academy of Sciences (U.S.)
publisher.none.fl_str_mv National Academy of Sciences (U.S.)
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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score 15,812429

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