Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain)

Autores
Antón, M.; Piedehierro, A. A.; Alados Arboledas, L.; Wolfram, Elian Augusto; Olmo, F. J.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Cloud cover usually attenuates the ultraviolet (UV) solar radiation but, under certain sky conditions, the clouds may produce an enhancement effect increasing the UV levels at surface. The main objective of this paper is to analyze an extreme UV enhancement episode recorded on 16 June 2009 at Granada (southeastern Spain). This phenomenon was characterized by a quick and intense increase in surface UV radiation under broken cloud fields (5-7oktas) in which the Sun was surrounded by cumulus clouds (confirmed with sky images). Thus, the UV index (UVI) showed an enhancement of a factor 4 in the course of only 30min around midday, varying from 2.6 to 10.4 (higher than the corresponding clear-sky UVI value). Additionally, the UVI presented values higher than 10 (extreme erythemal risk) for about 20min running, with a maximum value around 11.5. The use of an empirical model and the total ozone column (TOC) derived from the Global Ozone Monitoring Experiment (GOME) for the period 1995-2011 showed that the value of UVI~11.5 is substantially larger than the highest index that could origin the natural TOC variations over Granada. Finally, the UV erythemal dose accumulated during the period of 20min with the extreme UVI values under broken cloud fields was 350J/m 2 which surpass the energy required to produce sunburn of the most human skin types.
Fil: Antón, M.. Universidad de Granada; España
Fil: Piedehierro, A. A.. Universidad de Extremadura; España
Fil: Alados Arboledas, L.. Universidad de Granada; España
Fil: Wolfram, Elian Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina
Fil: Olmo, F. J.. Universidad de Granada; España
Materia
Cloud Enhancement
Ultraviolet Erythemal Irradiance
Uv Index
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:11336/81844
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain)Antón, M.Piedehierro, A. A.Alados Arboledas, L.Wolfram, Elian AugustoOlmo, F. J.Cloud EnhancementUltraviolet Erythemal IrradianceUv Indexhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Cloud cover usually attenuates the ultraviolet (UV) solar radiation but, under certain sky conditions, the clouds may produce an enhancement effect increasing the UV levels at surface. The main objective of this paper is to analyze an extreme UV enhancement episode recorded on 16 June 2009 at Granada (southeastern Spain). This phenomenon was characterized by a quick and intense increase in surface UV radiation under broken cloud fields (5-7oktas) in which the Sun was surrounded by cumulus clouds (confirmed with sky images). Thus, the UV index (UVI) showed an enhancement of a factor 4 in the course of only 30min around midday, varying from 2.6 to 10.4 (higher than the corresponding clear-sky UVI value). Additionally, the UVI presented values higher than 10 (extreme erythemal risk) for about 20min running, with a maximum value around 11.5. The use of an empirical model and the total ozone column (TOC) derived from the Global Ozone Monitoring Experiment (GOME) for the period 1995-2011 showed that the value of UVI~11.5 is substantially larger than the highest index that could origin the natural TOC variations over Granada. Finally, the UV erythemal dose accumulated during the period of 20min with the extreme UVI values under broken cloud fields was 350J/m 2 which surpass the energy required to produce sunburn of the most human skin types.Fil: Antón, M.. Universidad de Granada; EspañaFil: Piedehierro, A. A.. Universidad de Extremadura; EspañaFil: Alados Arboledas, L.. Universidad de Granada; EspañaFil: Wolfram, Elian Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; ArgentinaFil: Olmo, F. J.. Universidad de Granada; EspañaElsevier Science Inc2012-11info: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/11336/81844Antón, M.; Piedehierro, A. A.; Alados Arboledas, L.; Wolfram, Elian Augusto; Olmo, F. J.; Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain); Elsevier Science Inc; Atmospheric Research; 118; 11-2012; 10-140169-8095CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.atmosres.2012.06.007info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0169809512001822info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:12:36Zoai:ri.conicet.gov.ar:11336/81844instacron: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:34982025-09-10 13:12:36.625CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain)
title Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain)
spellingShingle Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain)
Antón, M.
Cloud Enhancement
Ultraviolet Erythemal Irradiance
Uv Index
title_short Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain)
title_full Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain)
title_fullStr Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain)
title_full_unstemmed Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain)
title_sort Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain)
dc.creator.none.fl_str_mv Antón, M.
Piedehierro, A. A.
Alados Arboledas, L.
Wolfram, Elian Augusto
Olmo, F. J.
author Antón, M.
author_facet Antón, M.
Piedehierro, A. A.
Alados Arboledas, L.
Wolfram, Elian Augusto
Olmo, F. J.
author_role author
author2 Piedehierro, A. A.
Alados Arboledas, L.
Wolfram, Elian Augusto
Olmo, F. J.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Cloud Enhancement
Ultraviolet Erythemal Irradiance
Uv Index
topic Cloud Enhancement
Ultraviolet Erythemal Irradiance
Uv Index
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Cloud cover usually attenuates the ultraviolet (UV) solar radiation but, under certain sky conditions, the clouds may produce an enhancement effect increasing the UV levels at surface. The main objective of this paper is to analyze an extreme UV enhancement episode recorded on 16 June 2009 at Granada (southeastern Spain). This phenomenon was characterized by a quick and intense increase in surface UV radiation under broken cloud fields (5-7oktas) in which the Sun was surrounded by cumulus clouds (confirmed with sky images). Thus, the UV index (UVI) showed an enhancement of a factor 4 in the course of only 30min around midday, varying from 2.6 to 10.4 (higher than the corresponding clear-sky UVI value). Additionally, the UVI presented values higher than 10 (extreme erythemal risk) for about 20min running, with a maximum value around 11.5. The use of an empirical model and the total ozone column (TOC) derived from the Global Ozone Monitoring Experiment (GOME) for the period 1995-2011 showed that the value of UVI~11.5 is substantially larger than the highest index that could origin the natural TOC variations over Granada. Finally, the UV erythemal dose accumulated during the period of 20min with the extreme UVI values under broken cloud fields was 350J/m 2 which surpass the energy required to produce sunburn of the most human skin types.
Fil: Antón, M.. Universidad de Granada; España
Fil: Piedehierro, A. A.. Universidad de Extremadura; España
Fil: Alados Arboledas, L.. Universidad de Granada; España
Fil: Wolfram, Elian Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina
Fil: Olmo, F. J.. Universidad de Granada; España
description Cloud cover usually attenuates the ultraviolet (UV) solar radiation but, under certain sky conditions, the clouds may produce an enhancement effect increasing the UV levels at surface. The main objective of this paper is to analyze an extreme UV enhancement episode recorded on 16 June 2009 at Granada (southeastern Spain). This phenomenon was characterized by a quick and intense increase in surface UV radiation under broken cloud fields (5-7oktas) in which the Sun was surrounded by cumulus clouds (confirmed with sky images). Thus, the UV index (UVI) showed an enhancement of a factor 4 in the course of only 30min around midday, varying from 2.6 to 10.4 (higher than the corresponding clear-sky UVI value). Additionally, the UVI presented values higher than 10 (extreme erythemal risk) for about 20min running, with a maximum value around 11.5. The use of an empirical model and the total ozone column (TOC) derived from the Global Ozone Monitoring Experiment (GOME) for the period 1995-2011 showed that the value of UVI~11.5 is substantially larger than the highest index that could origin the natural TOC variations over Granada. Finally, the UV erythemal dose accumulated during the period of 20min with the extreme UVI values under broken cloud fields was 350J/m 2 which surpass the energy required to produce sunburn of the most human skin types.
publishDate 2012
dc.date.none.fl_str_mv 2012-11
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/11336/81844
Antón, M.; Piedehierro, A. A.; Alados Arboledas, L.; Wolfram, Elian Augusto; Olmo, F. J.; Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain); Elsevier Science Inc; Atmospheric Research; 118; 11-2012; 10-14
0169-8095
CONICET Digital
CONICET
url http://hdl.handle.net/11336/81844
identifier_str_mv Antón, M.; Piedehierro, A. A.; Alados Arboledas, L.; Wolfram, Elian Augusto; Olmo, F. J.; Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain); Elsevier Science Inc; Atmospheric Research; 118; 11-2012; 10-14
0169-8095
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.atmosres.2012.06.007
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0169809512001822
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 Elsevier Science Inc
publisher.none.fl_str_mv Elsevier Science Inc
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 12.993085

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