Cloud effective transmittance at two sites of the Atacama Desert, Chile

Autores
Luccini, Eduardo Alfredo; Rivas, Miguel; Rojas, Elisa; Canziani, Pablo Osvaldo
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Broadband overcast cloud effective transmittance was determined at Arica (18.47S, 70.31°W, 20 m above sea level (asl)) and Poconchile (18.45°S, 70.07°W, 560 m asl), Atacama Desert, northern Chile, from 10 min averaged pyranometer measurements of total solar irradiance (ToSI) and ultraviolet solar irradiance (UVSI) during the period 2002-2005. The predominant cloud type is marine stratocumulus, characteristic of the southeastern Pacific tropical environment. The region's very regular climate conditions, characterized by overcast mornings and cloudless afternoons, allow the application of an empirical method to determine the expected clear-sky irradiance during cloudy mornings. The cloud effective transmittance (CET) is determined as the ratio of the measured cloudy-sky irradiance over the expected clear-sky irradiance. CETTo = 0.26 (0.31) for ToSI and CETUV = 0.37 (0.43) for UVSI characterize overcast cloudiness at Arica (Poconchile). One-dimensional radiative transfer model calculations in both ToSI and UVSI ranges are also used. The measured and modeled relationships between CETTo and CETUV closely agree. New insights are given to explain the sparsely populated data around CET = 0.8 observed also by other similar studies.
Fil: Luccini, Eduardo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Facultad de Química e Ingeniería-Rosario; Argentina
Fil: Rivas, Miguel. Universidad de Tarapacá; Chile
Fil: Rojas, Elisa. Universidad de Tarapacá; Chile
Fil: Canziani, Pablo Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Secretaría Académica. Dirección de Investigaciones. Equipo Estudios de Procesos Atmosféricos en el Cambio Global; Argentina
Materia
CLOUDS
EFFECTIVE TRANSMITTANCE
ATACAMA DESERT
PYRANOMETER
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:11336/194111
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/194111
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Cloud effective transmittance at two sites of the Atacama Desert, ChileLuccini, Eduardo AlfredoRivas, MiguelRojas, ElisaCanziani, Pablo OsvaldoCLOUDSEFFECTIVE TRANSMITTANCEATACAMA DESERTPYRANOMETERhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Broadband overcast cloud effective transmittance was determined at Arica (18.47S, 70.31°W, 20 m above sea level (asl)) and Poconchile (18.45°S, 70.07°W, 560 m asl), Atacama Desert, northern Chile, from 10 min averaged pyranometer measurements of total solar irradiance (ToSI) and ultraviolet solar irradiance (UVSI) during the period 2002-2005. The predominant cloud type is marine stratocumulus, characteristic of the southeastern Pacific tropical environment. The region's very regular climate conditions, characterized by overcast mornings and cloudless afternoons, allow the application of an empirical method to determine the expected clear-sky irradiance during cloudy mornings. The cloud effective transmittance (CET) is determined as the ratio of the measured cloudy-sky irradiance over the expected clear-sky irradiance. CETTo = 0.26 (0.31) for ToSI and CETUV = 0.37 (0.43) for UVSI characterize overcast cloudiness at Arica (Poconchile). One-dimensional radiative transfer model calculations in both ToSI and UVSI ranges are also used. The measured and modeled relationships between CETTo and CETUV closely agree. New insights are given to explain the sparsely populated data around CET = 0.8 observed also by other similar studies.Fil: Luccini, Eduardo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Facultad de Química e Ingeniería-Rosario; ArgentinaFil: Rivas, Miguel. Universidad de Tarapacá; ChileFil: Rojas, Elisa. Universidad de Tarapacá; ChileFil: Canziani, Pablo Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Secretaría Académica. Dirección de Investigaciones. Equipo Estudios de Procesos Atmosféricos en el Cambio Global; ArgentinaAmerican Geophysical Union2011-11info: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/11336/194111Luccini, Eduardo Alfredo; Rivas, Miguel; Rojas, Elisa; Canziani, Pablo Osvaldo; Cloud effective transmittance at two sites of the Atacama Desert, Chile; American Geophysical Union; Journal of Geophysical Research; 116; 20; 11-2011; 1-90148-0227CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2011JD015905info:eu-repo/semantics/altIdentifier/doi/10.1029/2011JD015905info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:54:19Zoai:ri.conicet.gov.ar:11336/194111instacron: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 09:54:19.768CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Cloud effective transmittance at two sites of the Atacama Desert, Chile
title Cloud effective transmittance at two sites of the Atacama Desert, Chile
spellingShingle Cloud effective transmittance at two sites of the Atacama Desert, Chile
Luccini, Eduardo Alfredo
CLOUDS
EFFECTIVE TRANSMITTANCE
ATACAMA DESERT
PYRANOMETER
title_short Cloud effective transmittance at two sites of the Atacama Desert, Chile
title_full Cloud effective transmittance at two sites of the Atacama Desert, Chile
title_fullStr Cloud effective transmittance at two sites of the Atacama Desert, Chile
title_full_unstemmed Cloud effective transmittance at two sites of the Atacama Desert, Chile
title_sort Cloud effective transmittance at two sites of the Atacama Desert, Chile
dc.creator.none.fl_str_mv Luccini, Eduardo Alfredo
Rivas, Miguel
Rojas, Elisa
Canziani, Pablo Osvaldo
author Luccini, Eduardo Alfredo
author_facet Luccini, Eduardo Alfredo
Rivas, Miguel
Rojas, Elisa
Canziani, Pablo Osvaldo
author_role author
author2 Rivas, Miguel
Rojas, Elisa
Canziani, Pablo Osvaldo
author2_role author
author
author
dc.subject.none.fl_str_mv CLOUDS
EFFECTIVE TRANSMITTANCE
ATACAMA DESERT
PYRANOMETER
topic CLOUDS
EFFECTIVE TRANSMITTANCE
ATACAMA DESERT
PYRANOMETER
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Broadband overcast cloud effective transmittance was determined at Arica (18.47S, 70.31°W, 20 m above sea level (asl)) and Poconchile (18.45°S, 70.07°W, 560 m asl), Atacama Desert, northern Chile, from 10 min averaged pyranometer measurements of total solar irradiance (ToSI) and ultraviolet solar irradiance (UVSI) during the period 2002-2005. The predominant cloud type is marine stratocumulus, characteristic of the southeastern Pacific tropical environment. The region's very regular climate conditions, characterized by overcast mornings and cloudless afternoons, allow the application of an empirical method to determine the expected clear-sky irradiance during cloudy mornings. The cloud effective transmittance (CET) is determined as the ratio of the measured cloudy-sky irradiance over the expected clear-sky irradiance. CETTo = 0.26 (0.31) for ToSI and CETUV = 0.37 (0.43) for UVSI characterize overcast cloudiness at Arica (Poconchile). One-dimensional radiative transfer model calculations in both ToSI and UVSI ranges are also used. The measured and modeled relationships between CETTo and CETUV closely agree. New insights are given to explain the sparsely populated data around CET = 0.8 observed also by other similar studies.
Fil: Luccini, Eduardo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Facultad de Química e Ingeniería-Rosario; Argentina
Fil: Rivas, Miguel. Universidad de Tarapacá; Chile
Fil: Rojas, Elisa. Universidad de Tarapacá; Chile
Fil: Canziani, Pablo Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Secretaría Académica. Dirección de Investigaciones. Equipo Estudios de Procesos Atmosféricos en el Cambio Global; Argentina
description Broadband overcast cloud effective transmittance was determined at Arica (18.47S, 70.31°W, 20 m above sea level (asl)) and Poconchile (18.45°S, 70.07°W, 560 m asl), Atacama Desert, northern Chile, from 10 min averaged pyranometer measurements of total solar irradiance (ToSI) and ultraviolet solar irradiance (UVSI) during the period 2002-2005. The predominant cloud type is marine stratocumulus, characteristic of the southeastern Pacific tropical environment. The region's very regular climate conditions, characterized by overcast mornings and cloudless afternoons, allow the application of an empirical method to determine the expected clear-sky irradiance during cloudy mornings. The cloud effective transmittance (CET) is determined as the ratio of the measured cloudy-sky irradiance over the expected clear-sky irradiance. CETTo = 0.26 (0.31) for ToSI and CETUV = 0.37 (0.43) for UVSI characterize overcast cloudiness at Arica (Poconchile). One-dimensional radiative transfer model calculations in both ToSI and UVSI ranges are also used. The measured and modeled relationships between CETTo and CETUV closely agree. New insights are given to explain the sparsely populated data around CET = 0.8 observed also by other similar studies.
publishDate 2011
dc.date.none.fl_str_mv 2011-11
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/11336/194111
Luccini, Eduardo Alfredo; Rivas, Miguel; Rojas, Elisa; Canziani, Pablo Osvaldo; Cloud effective transmittance at two sites of the Atacama Desert, Chile; American Geophysical Union; Journal of Geophysical Research; 116; 20; 11-2011; 1-9
0148-0227
CONICET Digital
CONICET
url http://hdl.handle.net/11336/194111
identifier_str_mv Luccini, Eduardo Alfredo; Rivas, Miguel; Rojas, Elisa; Canziani, Pablo Osvaldo; Cloud effective transmittance at two sites of the Atacama Desert, Chile; American Geophysical Union; Journal of Geophysical Research; 116; 20; 11-2011; 1-9
0148-0227
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2011JD015905
info:eu-repo/semantics/altIdentifier/doi/10.1029/2011JD015905
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 13.13397

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