Quantitative detection of Iodine in the stratosphere

Autores
Rainer, Volkamer; Koenig, Theodore K.; Campuzano Jost, Pedro; Saiz López, Alfonso; Jimenez, Jose L.; Fernandez, Rafael Pedro; Kinnison, Douglas E.; Cuevas, Carlos A.
Año de publicación
2020
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Ozone in the extrapolar lower stratosphere is currently declining for reasons that are not well understood. Iodine is emitted mostly from marine sources, and changing iodine emissions provide a possible chemical reason for why ozone in the lower stratosphere continues to decline (Koenig et al., 2020). Previous stratospheric measurements had detected iodine qualitatively in particles. More recently, IO observations in the daytime tropical tropopause layer (TTL) have suggested that between 0.25 to 0.70 pptv Iy are injected into the stratosphere, which is 1.6 to 3.5 times the WMO2014 upper limit. These indirect observations have led to revised estimates of 0 - 0.8 pptv Iy stratospheric injection in the WMO2018 report. This presentation discusses first quantitative measurements of IO radicals and of submicron particulate iodine from aircraft in the stratospherethat support 0.77 pptv Iy stratospheric injection. Our observations support the WMO2018 upper limit estimate, and clearly are incompatible with zero iodine injection. The implications of theobseved iodine concentrations for ozone loss in the lower stratosphere are discussed, also in light of climate records that find increasing iodine in recent decades, observed ozone trends, andongoing and future research needs to better quantify iodine´s contribution to explain these trends.
Fil: Rainer, Volkamer. State University of Colorado at Boulder; Estados Unidos
Fil: Koenig, Theodore K.. State University of Colorado at Boulder; Estados Unidos
Fil: Campuzano Jost, Pedro. State University of Colorado at Boulder; Estados Unidos
Fil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física "Rocasolano"; España
Fil: Jimenez, Jose L.. State University of Colorado at Boulder; Estados Unidos
Fil: Fernandez, Rafael Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad Tecnologica Nacional. Secretaria de Ciencia Tecnologia y Posgrado.; Argentina
Fil: Kinnison, Douglas E.. National Center for Atmospheric Research; Estados Unidos
Fil: Cuevas, Carlos A.. Consejo Superior de Investigaciones Científicas. Instituto de Química Física "Rocasolano"; España
General Assembly 2020 of the European Geosciences Union
Viena
Austria
Copernicus Meetings
Materia
Stratospheric Ozone
Particulate Iodine
Iodinge PGI
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:11336/210624
Acceder
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spelling Quantitative detection of Iodine in the stratosphereRainer, VolkamerKoenig, Theodore K.Campuzano Jost, PedroSaiz López, AlfonsoJimenez, Jose L.Fernandez, Rafael PedroKinnison, Douglas E.Cuevas, Carlos A.Stratospheric OzoneParticulate IodineIodinge PGIhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Ozone in the extrapolar lower stratosphere is currently declining for reasons that are not well understood. Iodine is emitted mostly from marine sources, and changing iodine emissions provide a possible chemical reason for why ozone in the lower stratosphere continues to decline (Koenig et al., 2020). Previous stratospheric measurements had detected iodine qualitatively in particles. More recently, IO observations in the daytime tropical tropopause layer (TTL) have suggested that between 0.25 to 0.70 pptv Iy are injected into the stratosphere, which is 1.6 to 3.5 times the WMO2014 upper limit. These indirect observations have led to revised estimates of 0 - 0.8 pptv Iy stratospheric injection in the WMO2018 report. This presentation discusses first quantitative measurements of IO radicals and of submicron particulate iodine from aircraft in the stratospherethat support 0.77 pptv Iy stratospheric injection. Our observations support the WMO2018 upper limit estimate, and clearly are incompatible with zero iodine injection. The implications of theobseved iodine concentrations for ozone loss in the lower stratosphere are discussed, also in light of climate records that find increasing iodine in recent decades, observed ozone trends, andongoing and future research needs to better quantify iodine´s contribution to explain these trends.Fil: Rainer, Volkamer. State University of Colorado at Boulder; Estados UnidosFil: Koenig, Theodore K.. State University of Colorado at Boulder; Estados UnidosFil: Campuzano Jost, Pedro. State University of Colorado at Boulder; Estados UnidosFil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física "Rocasolano"; EspañaFil: Jimenez, Jose L.. State University of Colorado at Boulder; Estados UnidosFil: Fernandez, Rafael Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad Tecnologica Nacional. Secretaria de Ciencia Tecnologia y Posgrado.; ArgentinaFil: Kinnison, Douglas E.. National Center for Atmospheric Research; Estados UnidosFil: Cuevas, Carlos A.. Consejo Superior de Investigaciones Científicas. Instituto de Química Física "Rocasolano"; EspañaGeneral Assembly 2020 of the European Geosciences UnionVienaAustriaCopernicus MeetingsCopernicus Publications2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectOtroBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/210624Quantitative detection of Iodine in the stratosphere; General Assembly 2020 of the European Geosciences Union; Viena; Austria; 2020; 1-1CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://meetingorganizer.copernicus.org/EGU2020/EGU2020-21998.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu2020-21998Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:10:01Zoai:ri.conicet.gov.ar:11336/210624instacron: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 10:10:01.845CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Quantitative detection of Iodine in the stratosphere
title Quantitative detection of Iodine in the stratosphere
spellingShingle Quantitative detection of Iodine in the stratosphere
Rainer, Volkamer
Stratospheric Ozone
Particulate Iodine
Iodinge PGI
title_short Quantitative detection of Iodine in the stratosphere
title_full Quantitative detection of Iodine in the stratosphere
title_fullStr Quantitative detection of Iodine in the stratosphere
title_full_unstemmed Quantitative detection of Iodine in the stratosphere
title_sort Quantitative detection of Iodine in the stratosphere
dc.creator.none.fl_str_mv Rainer, Volkamer
Koenig, Theodore K.
Campuzano Jost, Pedro
Saiz López, Alfonso
Jimenez, Jose L.
Fernandez, Rafael Pedro
Kinnison, Douglas E.
Cuevas, Carlos A.
author Rainer, Volkamer
author_facet Rainer, Volkamer
Koenig, Theodore K.
Campuzano Jost, Pedro
Saiz López, Alfonso
Jimenez, Jose L.
Fernandez, Rafael Pedro
Kinnison, Douglas E.
Cuevas, Carlos A.
author_role author
author2 Koenig, Theodore K.
Campuzano Jost, Pedro
Saiz López, Alfonso
Jimenez, Jose L.
Fernandez, Rafael Pedro
Kinnison, Douglas E.
Cuevas, Carlos A.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Stratospheric Ozone
Particulate Iodine
Iodinge PGI
topic Stratospheric Ozone
Particulate Iodine
Iodinge PGI
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Ozone in the extrapolar lower stratosphere is currently declining for reasons that are not well understood. Iodine is emitted mostly from marine sources, and changing iodine emissions provide a possible chemical reason for why ozone in the lower stratosphere continues to decline (Koenig et al., 2020). Previous stratospheric measurements had detected iodine qualitatively in particles. More recently, IO observations in the daytime tropical tropopause layer (TTL) have suggested that between 0.25 to 0.70 pptv Iy are injected into the stratosphere, which is 1.6 to 3.5 times the WMO2014 upper limit. These indirect observations have led to revised estimates of 0 - 0.8 pptv Iy stratospheric injection in the WMO2018 report. This presentation discusses first quantitative measurements of IO radicals and of submicron particulate iodine from aircraft in the stratospherethat support 0.77 pptv Iy stratospheric injection. Our observations support the WMO2018 upper limit estimate, and clearly are incompatible with zero iodine injection. The implications of theobseved iodine concentrations for ozone loss in the lower stratosphere are discussed, also in light of climate records that find increasing iodine in recent decades, observed ozone trends, andongoing and future research needs to better quantify iodine´s contribution to explain these trends.
Fil: Rainer, Volkamer. State University of Colorado at Boulder; Estados Unidos
Fil: Koenig, Theodore K.. State University of Colorado at Boulder; Estados Unidos
Fil: Campuzano Jost, Pedro. State University of Colorado at Boulder; Estados Unidos
Fil: Saiz López, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física "Rocasolano"; España
Fil: Jimenez, Jose L.. State University of Colorado at Boulder; Estados Unidos
Fil: Fernandez, Rafael Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad Tecnologica Nacional. Secretaria de Ciencia Tecnologia y Posgrado.; Argentina
Fil: Kinnison, Douglas E.. National Center for Atmospheric Research; Estados Unidos
Fil: Cuevas, Carlos A.. Consejo Superior de Investigaciones Científicas. Instituto de Química Física "Rocasolano"; España
General Assembly 2020 of the European Geosciences Union
Viena
Austria
Copernicus Meetings
description Ozone in the extrapolar lower stratosphere is currently declining for reasons that are not well understood. Iodine is emitted mostly from marine sources, and changing iodine emissions provide a possible chemical reason for why ozone in the lower stratosphere continues to decline (Koenig et al., 2020). Previous stratospheric measurements had detected iodine qualitatively in particles. More recently, IO observations in the daytime tropical tropopause layer (TTL) have suggested that between 0.25 to 0.70 pptv Iy are injected into the stratosphere, which is 1.6 to 3.5 times the WMO2014 upper limit. These indirect observations have led to revised estimates of 0 - 0.8 pptv Iy stratospheric injection in the WMO2018 report. This presentation discusses first quantitative measurements of IO radicals and of submicron particulate iodine from aircraft in the stratospherethat support 0.77 pptv Iy stratospheric injection. Our observations support the WMO2018 upper limit estimate, and clearly are incompatible with zero iodine injection. The implications of theobseved iodine concentrations for ozone loss in the lower stratosphere are discussed, also in light of climate records that find increasing iodine in recent decades, observed ozone trends, andongoing and future research needs to better quantify iodine´s contribution to explain these trends.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Otro
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/11336/210624
Quantitative detection of Iodine in the stratosphere; General Assembly 2020 of the European Geosciences Union; Viena; Austria; 2020; 1-1
CONICET Digital
CONICET
url http://hdl.handle.net/11336/210624
identifier_str_mv Quantitative detection of Iodine in the stratosphere; General Assembly 2020 of the European Geosciences Union; Viena; Austria; 2020; 1-1
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu2020-21998
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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
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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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