Critical frequencies of the ionospheric F1 and F2 layers during the last four solar cycles: Sunspot group type dependencies

Autores
Yiğit, Erdal; Kilcik, Ali; Elias, Ana Georgina; Dönmez, Burçin; Ozguc, Atila; Yurchshyn, Vasyl; Rozelot, Jean Pierre
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The long term solar activity dependencies of ionospheric F1 and F2 regions’ critical frequencies (f0F1 and f0F2) are analyzed for the last four solar cycles (1976–2015). We show that the ionospheric F1 and F2 regions have different solar activity dependencies in terms of the sunspot group (SG) numbers: F1 region critical frequency (f0F1) peaks at the same time with the small SG numbers, while the f0F2 reaches its maximum at the same time with the large SG numbers, especially during the solar cycle 23. The observed differences in the sensitivity of ionospheric critical frequencies to sunspot group (SG) numbers provide a new insight into the solar activity effects on the ionosphere and space weather. While the F1 layer is influenced by the slow solar wind, which is largely associated with small SGs, the ionospheric F2 layer is more sensitive to Coronal Mass Ejections (CMEs) and fast solar winds, which are mainly produced by large SGs and coronal holes. The SG numbers maximize during of peak of the solar cycle and the number of coronal holes peaks during the sunspot declining phase. During solar minimum there are relatively less large SGs, hence reduced CME and flare activity. These results provide a new perspective for assessing how the different regions of the ionosphere respond to space weather effects.
Fil: Yiğit, Erdal. George Mason University; Estados Unidos
Fil: Kilcik, Ali. Akdeniz University; Turquía
Fil: Elias, Ana Georgina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina
Fil: Dönmez, Burçin. Akdeniz University; Turquía
Fil: Ozguc, Atila. Bogazici University; Turquía
Fil: Yurchshyn, Vasyl. Big Bear Solar Observatory; Estados Unidos. Korea Astronomy and Space Science Institute; Corea del Sur
Fil: Rozelot, Jean Pierre. Observatoire de la Cote D'Azur; Francia
Materia
IONOSPHERE
IONOSPHERIC CRITICAL FREQUENCIES
SOLAR CYCLE
SUNSPOTS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/90431
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/90431
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Critical frequencies of the ionospheric F1 and F2 layers during the last four solar cycles: Sunspot group type dependenciesYiğit, ErdalKilcik, AliElias, Ana GeorginaDönmez, BurçinOzguc, AtilaYurchshyn, VasylRozelot, Jean PierreIONOSPHEREIONOSPHERIC CRITICAL FREQUENCIESSOLAR CYCLESUNSPOTShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The long term solar activity dependencies of ionospheric F1 and F2 regions’ critical frequencies (f0F1 and f0F2) are analyzed for the last four solar cycles (1976–2015). We show that the ionospheric F1 and F2 regions have different solar activity dependencies in terms of the sunspot group (SG) numbers: F1 region critical frequency (f0F1) peaks at the same time with the small SG numbers, while the f0F2 reaches its maximum at the same time with the large SG numbers, especially during the solar cycle 23. The observed differences in the sensitivity of ionospheric critical frequencies to sunspot group (SG) numbers provide a new insight into the solar activity effects on the ionosphere and space weather. While the F1 layer is influenced by the slow solar wind, which is largely associated with small SGs, the ionospheric F2 layer is more sensitive to Coronal Mass Ejections (CMEs) and fast solar winds, which are mainly produced by large SGs and coronal holes. The SG numbers maximize during of peak of the solar cycle and the number of coronal holes peaks during the sunspot declining phase. During solar minimum there are relatively less large SGs, hence reduced CME and flare activity. These results provide a new perspective for assessing how the different regions of the ionosphere respond to space weather effects.Fil: Yiğit, Erdal. George Mason University; Estados UnidosFil: Kilcik, Ali. Akdeniz University; TurquíaFil: Elias, Ana Georgina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; ArgentinaFil: Dönmez, Burçin. Akdeniz University; TurquíaFil: Ozguc, Atila. Bogazici University; TurquíaFil: Yurchshyn, Vasyl. Big Bear Solar Observatory; Estados Unidos. Korea Astronomy and Space Science Institute; Corea del SurFil: Rozelot, Jean Pierre. Observatoire de la Cote D'Azur; FranciaElsevier2018-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/90431Yiğit, Erdal; Kilcik, Ali; Elias, Ana Georgina; Dönmez, Burçin; Ozguc, Atila; et al.; Critical frequencies of the ionospheric F1 and F2 layers during the last four solar cycles: Sunspot group type dependencies; Elsevier; Journal of Atmospheric and Solar-Terrestrial Physics; 171; 6-2018; 157-1631364-6826CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1364682617301384info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jastp.2017.11.018info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1711.11126info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:43:40Zoai:ri.conicet.gov.ar:11336/90431instacron: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 09:43:40.783CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Critical frequencies of the ionospheric F1 and F2 layers during the last four solar cycles: Sunspot group type dependencies
title Critical frequencies of the ionospheric F1 and F2 layers during the last four solar cycles: Sunspot group type dependencies
spellingShingle Critical frequencies of the ionospheric F1 and F2 layers during the last four solar cycles: Sunspot group type dependencies
Yiğit, Erdal
IONOSPHERE
IONOSPHERIC CRITICAL FREQUENCIES
SOLAR CYCLE
SUNSPOTS
title_short Critical frequencies of the ionospheric F1 and F2 layers during the last four solar cycles: Sunspot group type dependencies
title_full Critical frequencies of the ionospheric F1 and F2 layers during the last four solar cycles: Sunspot group type dependencies
title_fullStr Critical frequencies of the ionospheric F1 and F2 layers during the last four solar cycles: Sunspot group type dependencies
title_full_unstemmed Critical frequencies of the ionospheric F1 and F2 layers during the last four solar cycles: Sunspot group type dependencies
title_sort Critical frequencies of the ionospheric F1 and F2 layers during the last four solar cycles: Sunspot group type dependencies
dc.creator.none.fl_str_mv Yiğit, Erdal
Kilcik, Ali
Elias, Ana Georgina
Dönmez, Burçin
Ozguc, Atila
Yurchshyn, Vasyl
Rozelot, Jean Pierre
author Yiğit, Erdal
author_facet Yiğit, Erdal
Kilcik, Ali
Elias, Ana Georgina
Dönmez, Burçin
Ozguc, Atila
Yurchshyn, Vasyl
Rozelot, Jean Pierre
author_role author
author2 Kilcik, Ali
Elias, Ana Georgina
Dönmez, Burçin
Ozguc, Atila
Yurchshyn, Vasyl
Rozelot, Jean Pierre
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv IONOSPHERE
IONOSPHERIC CRITICAL FREQUENCIES
SOLAR CYCLE
SUNSPOTS
topic IONOSPHERE
IONOSPHERIC CRITICAL FREQUENCIES
SOLAR CYCLE
SUNSPOTS
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 long term solar activity dependencies of ionospheric F1 and F2 regions’ critical frequencies (f0F1 and f0F2) are analyzed for the last four solar cycles (1976–2015). We show that the ionospheric F1 and F2 regions have different solar activity dependencies in terms of the sunspot group (SG) numbers: F1 region critical frequency (f0F1) peaks at the same time with the small SG numbers, while the f0F2 reaches its maximum at the same time with the large SG numbers, especially during the solar cycle 23. The observed differences in the sensitivity of ionospheric critical frequencies to sunspot group (SG) numbers provide a new insight into the solar activity effects on the ionosphere and space weather. While the F1 layer is influenced by the slow solar wind, which is largely associated with small SGs, the ionospheric F2 layer is more sensitive to Coronal Mass Ejections (CMEs) and fast solar winds, which are mainly produced by large SGs and coronal holes. The SG numbers maximize during of peak of the solar cycle and the number of coronal holes peaks during the sunspot declining phase. During solar minimum there are relatively less large SGs, hence reduced CME and flare activity. These results provide a new perspective for assessing how the different regions of the ionosphere respond to space weather effects.
Fil: Yiğit, Erdal. George Mason University; Estados Unidos
Fil: Kilcik, Ali. Akdeniz University; Turquía
Fil: Elias, Ana Georgina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología; Argentina
Fil: Dönmez, Burçin. Akdeniz University; Turquía
Fil: Ozguc, Atila. Bogazici University; Turquía
Fil: Yurchshyn, Vasyl. Big Bear Solar Observatory; Estados Unidos. Korea Astronomy and Space Science Institute; Corea del Sur
Fil: Rozelot, Jean Pierre. Observatoire de la Cote D'Azur; Francia
description The long term solar activity dependencies of ionospheric F1 and F2 regions’ critical frequencies (f0F1 and f0F2) are analyzed for the last four solar cycles (1976–2015). We show that the ionospheric F1 and F2 regions have different solar activity dependencies in terms of the sunspot group (SG) numbers: F1 region critical frequency (f0F1) peaks at the same time with the small SG numbers, while the f0F2 reaches its maximum at the same time with the large SG numbers, especially during the solar cycle 23. The observed differences in the sensitivity of ionospheric critical frequencies to sunspot group (SG) numbers provide a new insight into the solar activity effects on the ionosphere and space weather. While the F1 layer is influenced by the slow solar wind, which is largely associated with small SGs, the ionospheric F2 layer is more sensitive to Coronal Mass Ejections (CMEs) and fast solar winds, which are mainly produced by large SGs and coronal holes. The SG numbers maximize during of peak of the solar cycle and the number of coronal holes peaks during the sunspot declining phase. During solar minimum there are relatively less large SGs, hence reduced CME and flare activity. These results provide a new perspective for assessing how the different regions of the ionosphere respond to space weather effects.
publishDate 2018
dc.date.none.fl_str_mv 2018-06
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/11336/90431
Yiğit, Erdal; Kilcik, Ali; Elias, Ana Georgina; Dönmez, Burçin; Ozguc, Atila; et al.; Critical frequencies of the ionospheric F1 and F2 layers during the last four solar cycles: Sunspot group type dependencies; Elsevier; Journal of Atmospheric and Solar-Terrestrial Physics; 171; 6-2018; 157-163
1364-6826
CONICET Digital
CONICET
url http://hdl.handle.net/11336/90431
identifier_str_mv Yiğit, Erdal; Kilcik, Ali; Elias, Ana Georgina; Dönmez, Burçin; Ozguc, Atila; et al.; Critical frequencies of the ionospheric F1 and F2 layers during the last four solar cycles: Sunspot group type dependencies; Elsevier; Journal of Atmospheric and Solar-Terrestrial Physics; 171; 6-2018; 157-163
1364-6826
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://www.sciencedirect.com/science/article/pii/S1364682617301384
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jastp.2017.11.018
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1711.11126
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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