On the formation of tropical rings of atomic halogens: Causes and implications

Autores
Saiz Lopez, Alfonso; Fernandez, Rafael Pedro
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Halogens produced by ocean biological and photochemical processes reach the tropical tropopause layer (TTL), where cold temperatures and the prevailing low ozone abundances favor the diurnal photochemical enhancement of halogen atoms. Under these conditions atomic bromine and iodine are modeled to be the dominant inorganic halogen species in the sunlit TTL, surpassing the abundance of the commonly targeted IO and BrO radicals. We suggest that due to the rapid photochemical equilibrium between halogen oxides and halogen atoms a natural atmospheric phenomenon evolves, which we have collectively termed "tropical rings of atomic halogens." We describe the main causes controlling the modeled appearance and variability of these superposed rings of bare bromine and iodine atoms that circle the tropics following the Sun. Some potential implications for atmospheric oxidizing capacity are also explored. Our model results suggest that if experimentally confirmed, the extent and intensity of the halogen rings would directly respond to changes in oceanic halocarbon emissions, their atmospheric transport, and photochemistry.
Fil: Saiz Lopez, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
Fil: Fernandez, Rafael Pedro. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Universidad Tecnológica Nacional; Argentina
Materia
HALOGEN-MEDIATED MERCURY OXIDATION
HALOGENATED VSLS
TROPICAL RING OF ATOMIC BROMINE
TROPICAL RING OF ATOMIC IODINE
TROPOSPHERIC HALOGEN CHEMISTRY
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:11336/180308
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/180308
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling On the formation of tropical rings of atomic halogens: Causes and implicationsSaiz Lopez, AlfonsoFernandez, Rafael PedroHALOGEN-MEDIATED MERCURY OXIDATIONHALOGENATED VSLSTROPICAL RING OF ATOMIC BROMINETROPICAL RING OF ATOMIC IODINETROPOSPHERIC HALOGEN CHEMISTRYhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Halogens produced by ocean biological and photochemical processes reach the tropical tropopause layer (TTL), where cold temperatures and the prevailing low ozone abundances favor the diurnal photochemical enhancement of halogen atoms. Under these conditions atomic bromine and iodine are modeled to be the dominant inorganic halogen species in the sunlit TTL, surpassing the abundance of the commonly targeted IO and BrO radicals. We suggest that due to the rapid photochemical equilibrium between halogen oxides and halogen atoms a natural atmospheric phenomenon evolves, which we have collectively termed "tropical rings of atomic halogens." We describe the main causes controlling the modeled appearance and variability of these superposed rings of bare bromine and iodine atoms that circle the tropics following the Sun. Some potential implications for atmospheric oxidizing capacity are also explored. Our model results suggest that if experimentally confirmed, the extent and intensity of the halogen rings would directly respond to changes in oceanic halocarbon emissions, their atmospheric transport, and photochemistry.Fil: Saiz Lopez, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; EspañaFil: Fernandez, Rafael Pedro. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Universidad Tecnológica Nacional; ArgentinaAmerican Geophysical Union2016-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/180308Saiz Lopez, Alfonso; Fernandez, Rafael Pedro; On the formation of tropical rings of atomic halogens: Causes and implications; American Geophysical Union; Geophysical Research Letters; 43; 6; 3-2016; 2928-29350094-8276CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/2015GL067608/abstractinfo:eu-repo/semantics/altIdentifier/doi/10.1002/2015GL067608info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:35:31Zoai:ri.conicet.gov.ar:11336/180308instacron: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:34982025-09-29 09:35:32.1CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv On the formation of tropical rings of atomic halogens: Causes and implications
title On the formation of tropical rings of atomic halogens: Causes and implications
spellingShingle On the formation of tropical rings of atomic halogens: Causes and implications
Saiz Lopez, Alfonso
HALOGEN-MEDIATED MERCURY OXIDATION
HALOGENATED VSLS
TROPICAL RING OF ATOMIC BROMINE
TROPICAL RING OF ATOMIC IODINE
TROPOSPHERIC HALOGEN CHEMISTRY
title_short On the formation of tropical rings of atomic halogens: Causes and implications
title_full On the formation of tropical rings of atomic halogens: Causes and implications
title_fullStr On the formation of tropical rings of atomic halogens: Causes and implications
title_full_unstemmed On the formation of tropical rings of atomic halogens: Causes and implications
title_sort On the formation of tropical rings of atomic halogens: Causes and implications
dc.creator.none.fl_str_mv Saiz Lopez, Alfonso
Fernandez, Rafael Pedro
author Saiz Lopez, Alfonso
author_facet Saiz Lopez, Alfonso
Fernandez, Rafael Pedro
author_role author
author2 Fernandez, Rafael Pedro
author2_role author
dc.subject.none.fl_str_mv HALOGEN-MEDIATED MERCURY OXIDATION
HALOGENATED VSLS
TROPICAL RING OF ATOMIC BROMINE
TROPICAL RING OF ATOMIC IODINE
TROPOSPHERIC HALOGEN CHEMISTRY
topic HALOGEN-MEDIATED MERCURY OXIDATION
HALOGENATED VSLS
TROPICAL RING OF ATOMIC BROMINE
TROPICAL RING OF ATOMIC IODINE
TROPOSPHERIC HALOGEN CHEMISTRY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Halogens produced by ocean biological and photochemical processes reach the tropical tropopause layer (TTL), where cold temperatures and the prevailing low ozone abundances favor the diurnal photochemical enhancement of halogen atoms. Under these conditions atomic bromine and iodine are modeled to be the dominant inorganic halogen species in the sunlit TTL, surpassing the abundance of the commonly targeted IO and BrO radicals. We suggest that due to the rapid photochemical equilibrium between halogen oxides and halogen atoms a natural atmospheric phenomenon evolves, which we have collectively termed "tropical rings of atomic halogens." We describe the main causes controlling the modeled appearance and variability of these superposed rings of bare bromine and iodine atoms that circle the tropics following the Sun. Some potential implications for atmospheric oxidizing capacity are also explored. Our model results suggest that if experimentally confirmed, the extent and intensity of the halogen rings would directly respond to changes in oceanic halocarbon emissions, their atmospheric transport, and photochemistry.
Fil: Saiz Lopez, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
Fil: Fernandez, Rafael Pedro. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Universidad Tecnológica Nacional; Argentina
description Halogens produced by ocean biological and photochemical processes reach the tropical tropopause layer (TTL), where cold temperatures and the prevailing low ozone abundances favor the diurnal photochemical enhancement of halogen atoms. Under these conditions atomic bromine and iodine are modeled to be the dominant inorganic halogen species in the sunlit TTL, surpassing the abundance of the commonly targeted IO and BrO radicals. We suggest that due to the rapid photochemical equilibrium between halogen oxides and halogen atoms a natural atmospheric phenomenon evolves, which we have collectively termed "tropical rings of atomic halogens." We describe the main causes controlling the modeled appearance and variability of these superposed rings of bare bromine and iodine atoms that circle the tropics following the Sun. Some potential implications for atmospheric oxidizing capacity are also explored. Our model results suggest that if experimentally confirmed, the extent and intensity of the halogen rings would directly respond to changes in oceanic halocarbon emissions, their atmospheric transport, and photochemistry.
publishDate 2016
dc.date.none.fl_str_mv 2016-03
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/11336/180308
Saiz Lopez, Alfonso; Fernandez, Rafael Pedro; On the formation of tropical rings of atomic halogens: Causes and implications; American Geophysical Union; Geophysical Research Letters; 43; 6; 3-2016; 2928-2935
0094-8276
CONICET Digital
CONICET
url http://hdl.handle.net/11336/180308
identifier_str_mv Saiz Lopez, Alfonso; Fernandez, Rafael Pedro; On the formation of tropical rings of atomic halogens: Causes and implications; American Geophysical Union; Geophysical Research Letters; 43; 6; 3-2016; 2928-2935
0094-8276
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/2015GL067608/abstract
info:eu-repo/semantics/altIdentifier/doi/10.1002/2015GL067608
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
application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
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 13.070432

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