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dc.contributor.author
Fernandez, Rafael Pedro
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dc.contributor.author
Salawitch, R. J.
dc.contributor.author
Kinnison, D. E.
dc.contributor.author
Lamarque, J. F.
dc.contributor.author
Saiz-lopez, Alfonso
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dc.date.available
2018-01-08T18:35:48Z
dc.date.issued
2014-12
dc.identifier.citation
Lamarque, J. F.; Saiz-lopez, Alfonso; Salawitch, R. J.; Kinnison, D. E.; Fernandez, Rafael Pedro; Bromine partitioning in the tropical tropopause layer: implications for stratospheric injection; Copernicus Publications; Atmospheric Chemistry and Physics; 14; 24; 12-2014; 13391-13410
dc.identifier.issn
1680-7316
dc.identifier.uri
http://hdl.handle.net/11336/32539
dc.description.abstract
Very short-lived (VSL) bromocarbons are produced at a prodigious rate by ocean biology and these source compounds (SGVSL), together with their inorganic degradation products (PGVSL), are lofted by vigorous convection to the tropical tropopause layer (TTL). Using a state-of-the-art photochemical mechanism within a global model, we calculate annual average stratospheric injection of total bromine due to VSL sources to be 5 pptv (parts per trillion by volume), with ~ 3 pptv entering the stratosphere as PGVSL and ~ 2 pptv as SGVSL. The geographic distribution and partitioning of VSL bromine within the TTL, and its consequent stratospheric injection, is highly dependent on the oceanic flux, the strength of convection and the occurrence of heterogeneous recycling reactions. Our calculations indicate atomic Br should be the dominant inorganic species in large regions of the TTL during daytime, due to the low ozone and cold conditions of this region. We propose the existence of a "tropical ring of atomic bromine" located approximately between 15 and 19 km and between 30° N and 30° S. Daytime Br / BrO ratios of up to ~ 4 are predicted within this inhomogeneous ring in regions of highly convective transport, such as the tropical Western Pacific. Therefore, we suggest that experimental programs designed to quantify the bromine budget of the TTL and the stratospheric injection of VSL biogenic bromocarbons should include a strategy for the measurement of atomic Br during daytime as well as HOBr and BrCl during nighttime.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Copernicus Publications
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
Bromine Chemistry
dc.subject
Very-Short Lived Species
dc.subject
Tropical Rings of Atomic Halogens
dc.subject
Tropospheric And Stratosphreic Ozone
dc.subject
Halocarbons
dc.subject.classification
Meteorología y Ciencias Atmosféricas
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Bromine partitioning in the tropical tropopause layer: implications for stratospheric injection
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-01-03T19:58:14Z
dc.identifier.eissn
1680-7324
dc.journal.volume
14
dc.journal.number
24
dc.journal.pagination
13391-13410
dc.journal.pais
Alemania
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dc.journal.ciudad
Gotinga
dc.description.fil
Fil: Fernandez, Rafael Pedro. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina
dc.description.fil
Fil: Salawitch, R. J.. University of Maryland. Department of Atmospheric and Oceanic Science; Estados Unidos
dc.description.fil
Fil: Kinnison, D. E.. National Center For Atmospheric Research. Amospheric Chemistry División; Estados Unidos
dc.description.fil
Fil: Lamarque, J. F.. National Center For Atmospheric Research. Amospheric Chemistry División; Estados Unidos
dc.description.fil
Fil: Saiz-lopez, Alfonso. Consejo Superior de Investigaciones Científicas. Instituto de Química Física; España
dc.journal.title
Atmospheric Chemistry and Physics
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.atmos-chem-phys.net/14/13391/2014/
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.5194/acp-14-13391-2014
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