Ionospheric trends in Southern Hemisphere stations due to the increasing greenhouse gases concentration

Autores
Venchiarutti, José Valentín; de Haro Barbás, Blas Federico; Elias, Ana Georgina
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The lower and middle atmosphere present long-term variations in temperatureand other parameters linked to anthropogenic sources, such as the increase in greenhouse gases concentration since the start of the industrial era. Some examples are the well known temperature increase in the troposphere and stratosphere cooling. Upper atmosphere parameters also present long-term variations. While in the case of the middle and lower atmosphere it is debated whether the origin of the trends is primarily anthropogenic or solar, in the upper atmosphere other sources are also able to induce long-term changes, such as long-term variations in geomagnetic activity and secular variations of the Earth?s magnetic field. In this paper, trends of the F2 layer critical frequency, foF2, measured at three Southern Hemisphere stations (Brisbane, Canberra and Christchurch) are analyzed to determine the importance of increasing greenhouse gases concentration effect. According to our results for the period covering solar cycles 18 to 21 (period 1944-1986), it is more important than natural forcings. Update estimates including solar cycle 23 are presented although the difficulty due to two of the three stations present bigdata gaps during cycle 22 and traditional ionospheric filtering is no longerentirely reliable for cycle 23. The aim of this study is to contribute both toan active area of aeronomy as is the study of trends in the upper atmosphere,and to the understanding of climate change.
Fil: Venchiarutti, José Valentín. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
Fil: de Haro Barbás, Blas Federico. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina
Fil: Elias, Ana Georgina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
Materia
IONOSPHERIC TRENDS
EUV PROXIES
GREENHOUSE EFFECT
F2 REGION
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:11336/77354
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Ionospheric trends in Southern Hemisphere stations due to the increasing greenhouse gases concentrationVenchiarutti, José Valentínde Haro Barbás, Blas FedericoElias, Ana GeorginaIONOSPHERIC TRENDSEUV PROXIESGREENHOUSE EFFECTF2 REGIONhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The lower and middle atmosphere present long-term variations in temperatureand other parameters linked to anthropogenic sources, such as the increase in greenhouse gases concentration since the start of the industrial era. Some examples are the well known temperature increase in the troposphere and stratosphere cooling. Upper atmosphere parameters also present long-term variations. While in the case of the middle and lower atmosphere it is debated whether the origin of the trends is primarily anthropogenic or solar, in the upper atmosphere other sources are also able to induce long-term changes, such as long-term variations in geomagnetic activity and secular variations of the Earth?s magnetic field. In this paper, trends of the F2 layer critical frequency, foF2, measured at three Southern Hemisphere stations (Brisbane, Canberra and Christchurch) are analyzed to determine the importance of increasing greenhouse gases concentration effect. According to our results for the period covering solar cycles 18 to 21 (period 1944-1986), it is more important than natural forcings. Update estimates including solar cycle 23 are presented although the difficulty due to two of the three stations present bigdata gaps during cycle 22 and traditional ionospheric filtering is no longerentirely reliable for cycle 23. The aim of this study is to contribute both toan active area of aeronomy as is the study of trends in the upper atmosphere,and to the understanding of climate change.Fil: Venchiarutti, José Valentín. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; ArgentinaFil: de Haro Barbás, Blas Federico. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; ArgentinaFil: Elias, Ana Georgina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; ArgentinaEditrice Compositori Bologna2015-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/77354Venchiarutti, José Valentín; de Haro Barbás, Blas Federico; Elias, Ana Georgina; Ionospheric trends in Southern Hemisphere stations due to the increasing greenhouse gases concentration; Editrice Compositori Bologna; Annals Of Geophysics; 58; 3; 3-2015; 1-61593-52132037-416XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.4401/ag-6707info:eu-repo/semantics/altIdentifier/url/https://www.annalsofgeophysics.eu/index.php/annals/article/view/6707info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:20:07Zoai:ri.conicet.gov.ar:11336/77354instacron: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 13:20:08.155CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ionospheric trends in Southern Hemisphere stations due to the increasing greenhouse gases concentration
title Ionospheric trends in Southern Hemisphere stations due to the increasing greenhouse gases concentration
spellingShingle Ionospheric trends in Southern Hemisphere stations due to the increasing greenhouse gases concentration
Venchiarutti, José Valentín
IONOSPHERIC TRENDS
EUV PROXIES
GREENHOUSE EFFECT
F2 REGION
title_short Ionospheric trends in Southern Hemisphere stations due to the increasing greenhouse gases concentration
title_full Ionospheric trends in Southern Hemisphere stations due to the increasing greenhouse gases concentration
title_fullStr Ionospheric trends in Southern Hemisphere stations due to the increasing greenhouse gases concentration
title_full_unstemmed Ionospheric trends in Southern Hemisphere stations due to the increasing greenhouse gases concentration
title_sort Ionospheric trends in Southern Hemisphere stations due to the increasing greenhouse gases concentration
dc.creator.none.fl_str_mv Venchiarutti, José Valentín
de Haro Barbás, Blas Federico
Elias, Ana Georgina
author Venchiarutti, José Valentín
author_facet Venchiarutti, José Valentín
de Haro Barbás, Blas Federico
Elias, Ana Georgina
author_role author
author2 de Haro Barbás, Blas Federico
Elias, Ana Georgina
author2_role author
author
dc.subject.none.fl_str_mv IONOSPHERIC TRENDS
EUV PROXIES
GREENHOUSE EFFECT
F2 REGION
topic IONOSPHERIC TRENDS
EUV PROXIES
GREENHOUSE EFFECT
F2 REGION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The lower and middle atmosphere present long-term variations in temperatureand other parameters linked to anthropogenic sources, such as the increase in greenhouse gases concentration since the start of the industrial era. Some examples are the well known temperature increase in the troposphere and stratosphere cooling. Upper atmosphere parameters also present long-term variations. While in the case of the middle and lower atmosphere it is debated whether the origin of the trends is primarily anthropogenic or solar, in the upper atmosphere other sources are also able to induce long-term changes, such as long-term variations in geomagnetic activity and secular variations of the Earth?s magnetic field. In this paper, trends of the F2 layer critical frequency, foF2, measured at three Southern Hemisphere stations (Brisbane, Canberra and Christchurch) are analyzed to determine the importance of increasing greenhouse gases concentration effect. According to our results for the period covering solar cycles 18 to 21 (period 1944-1986), it is more important than natural forcings. Update estimates including solar cycle 23 are presented although the difficulty due to two of the three stations present bigdata gaps during cycle 22 and traditional ionospheric filtering is no longerentirely reliable for cycle 23. The aim of this study is to contribute both toan active area of aeronomy as is the study of trends in the upper atmosphere,and to the understanding of climate change.
Fil: Venchiarutti, José Valentín. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
Fil: de Haro Barbás, Blas Federico. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina
Fil: Elias, Ana Georgina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina
description The lower and middle atmosphere present long-term variations in temperatureand other parameters linked to anthropogenic sources, such as the increase in greenhouse gases concentration since the start of the industrial era. Some examples are the well known temperature increase in the troposphere and stratosphere cooling. Upper atmosphere parameters also present long-term variations. While in the case of the middle and lower atmosphere it is debated whether the origin of the trends is primarily anthropogenic or solar, in the upper atmosphere other sources are also able to induce long-term changes, such as long-term variations in geomagnetic activity and secular variations of the Earth?s magnetic field. In this paper, trends of the F2 layer critical frequency, foF2, measured at three Southern Hemisphere stations (Brisbane, Canberra and Christchurch) are analyzed to determine the importance of increasing greenhouse gases concentration effect. According to our results for the period covering solar cycles 18 to 21 (period 1944-1986), it is more important than natural forcings. Update estimates including solar cycle 23 are presented although the difficulty due to two of the three stations present bigdata gaps during cycle 22 and traditional ionospheric filtering is no longerentirely reliable for cycle 23. The aim of this study is to contribute both toan active area of aeronomy as is the study of trends in the upper atmosphere,and to the understanding of climate change.
publishDate 2015
dc.date.none.fl_str_mv 2015-03
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/11336/77354
Venchiarutti, José Valentín; de Haro Barbás, Blas Federico; Elias, Ana Georgina; Ionospheric trends in Southern Hemisphere stations due to the increasing greenhouse gases concentration; Editrice Compositori Bologna; Annals Of Geophysics; 58; 3; 3-2015; 1-6
1593-5213
2037-416X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/77354
identifier_str_mv Venchiarutti, José Valentín; de Haro Barbás, Blas Federico; Elias, Ana Georgina; Ionospheric trends in Southern Hemisphere stations due to the increasing greenhouse gases concentration; Editrice Compositori Bologna; Annals Of Geophysics; 58; 3; 3-2015; 1-6
1593-5213
2037-416X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.4401/ag-6707
info:eu-repo/semantics/altIdentifier/url/https://www.annalsofgeophysics.eu/index.php/annals/article/view/6707
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
dc.publisher.none.fl_str_mv Editrice Compositori Bologna
publisher.none.fl_str_mv Editrice Compositori Bologna
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 12.48226

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