Ionospheric effects of volcanic eruptions

Ionospheric effects of Mount Pinatubo volcanic eruption in June 1991 were recorded on 1-minute interval soundings made by stations north of the volcano. Disturbances characterized by quasi-periodic wavelike trains were detected. They were attributed to gravity waves generated by the eruption, and it...

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Autores: de Ragone, Argelia H.C., de Manzano, Amalia N. F., Elias, Ana G., de Artigas, Marta Z.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2004
País:México
Recursos:UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO
Repositorio:Geofísica Internacional
Idioma:español
inglés
OAI Identifier:oai:revistagi.geofisica.unam.mx:article/867
Acesso em linha:http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/867
Access Level:acceso abierto
Palavra-chave:Erupción volcánica
Ionosfera
Frecuencia crítica de F2
Altura virtual de la capa F
Volcanic eruption
Ionosphere
F2 critical frequency
F layer virtual height
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spelling Ionospheric effects of volcanic eruptionsIonospheric effects of volcanic eruptionsde Ragone, Argelia H.C.de Manzano, Amalia N. F.Elias, Ana G.de Artigas, Marta Z.Erupción volcánicaIonosferaFrecuencia crítica de F2Altura virtual de la capa FVolcanic eruptionIonosphereF2 critical frequencyF layer virtual heightIonospheric effects of Mount Pinatubo volcanic eruption in June 1991 were recorded on 1-minute interval soundings made by stations north of the volcano. Disturbances characterized by quasi-periodic wavelike trains were detected. They were attributed to gravity waves generated by the eruption, and its characteristics were determined. We search for similar ionospheric disturbances caused by volcanic eruptions in North and South America, based on hourly F2 critical frequency (foF2) and F layer virtual height (h’F) data. The study was carried out for quiet magnetic activity levels. All eruptions reached the Pinatubo intensity. A decrease of foF2 and of its amplitude of variation, and an increase of h’F in relation to their values during the day before and after the eruption were detected in some cases. In other cases the disturbance was detected for only one parameter, or for none. The absence of disturbances in the hourly records could be due to the lack of coincidence between the maximum departures of the parameters from the normal situation, and the recording time of the parameter. The observed disturbances are correlated with the eruption intensity.Se han realizado numerosos estudios sobre los efectos ionosféricos de la erupción volcánica del Monte Pinatubo de junio de 1991. Basados en intervalos de 1 minuto de sondaje realizado en estaciones ubicadas al norte del volcán, se han detectado perturbaciones ionosféricas caracterizadas por trenes de onda cuasi-periódicas. Las ondas ionosféricas fueron atribuidas a ondas gravitatorias generadas por la fuerte erupción volcánica del Monte Pinatubo y sus características fueron determinadas. En el presente trabajo se busca detectar perturbaciones ionosféricas causadas por erupciones volcánicas en América, basados en datos horarios de la frecuencia crítica de la capa F2 (foF2) y la altura virtual de la capa F (h’F). El estudio fue realizado para periodos de nivel de actividad magnética tranquila. Ninguna de las erupciones aquí analizadas alcanza la intensidad del Pinatubo. Sin embargo, un decrecimiento de foF2 y de su amplitud de variación y un aumento de h’F en relación con sus valores durante el día previo y el posterior al de la erupción fueron detectados en algunos casos. En otros, la perturbación fue detectada solamente en uno de los parámetros analizados. La ausencia de perturbaciones en registros horarios podría deberse a la falta de coincidencia de los máximos apartamientos de los valores respecto a una situación de normalidad con el momento del registro de los parámetrosionosféricos. La observación de los efectos está directamente relacionada con la intensidad de la erupción.Universidad Nacional Autónoma de México. Instituto de Geofísica2004-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://revistagi.geofisica.unam.mx/index.php/RGI/article/view/86710.22201/igeof.00167169p.2004.43.2.169Geofisica Internacional; Vol. 43 No. 2 (2004): April 1, 2004; 187-192Geofísica Internacional; Vol. 43 Núm. 2 (2004): Abril 1, 2004; 187-1922954-436X0016-716910.22201/igeof.00167169p.2004.43.2reponame:Geofísica Internacionalinstname:UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICOinstacron:UNAMspaenghttp://revistagi.geofisica.unam.mx/index.php/RGI/article/view/867/822http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/867/2581https://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccessoai:revistagi.geofisica.unam.mx:article/8672024-08-16T17:32:00Z
dc.title.none.fl_str_mv Ionospheric effects of volcanic eruptions
Ionospheric effects of volcanic eruptions
title Ionospheric effects of volcanic eruptions
spellingShingle Ionospheric effects of volcanic eruptions
de Ragone, Argelia H.C.
Erupción volcánica
Ionosfera
Frecuencia crítica de F2
Altura virtual de la capa F
Volcanic eruption
Ionosphere
F2 critical frequency
F layer virtual height
title_short Ionospheric effects of volcanic eruptions
title_full Ionospheric effects of volcanic eruptions
title_fullStr Ionospheric effects of volcanic eruptions
title_full_unstemmed Ionospheric effects of volcanic eruptions
title_sort Ionospheric effects of volcanic eruptions
dc.creator.none.fl_str_mv de Ragone, Argelia H.C.
de Manzano, Amalia N. F.
Elias, Ana G.
de Artigas, Marta Z.
author de Ragone, Argelia H.C.
author_facet de Ragone, Argelia H.C.
de Manzano, Amalia N. F.
Elias, Ana G.
de Artigas, Marta Z.
author_role author
author2 de Manzano, Amalia N. F.
Elias, Ana G.
de Artigas, Marta Z.
author2_role author
author
author
dc.subject.none.fl_str_mv Erupción volcánica
Ionosfera
Frecuencia crítica de F2
Altura virtual de la capa F
Volcanic eruption
Ionosphere
F2 critical frequency
F layer virtual height
topic Erupción volcánica
Ionosfera
Frecuencia crítica de F2
Altura virtual de la capa F
Volcanic eruption
Ionosphere
F2 critical frequency
F layer virtual height
description Ionospheric effects of Mount Pinatubo volcanic eruption in June 1991 were recorded on 1-minute interval soundings made by stations north of the volcano. Disturbances characterized by quasi-periodic wavelike trains were detected. They were attributed to gravity waves generated by the eruption, and its characteristics were determined. We search for similar ionospheric disturbances caused by volcanic eruptions in North and South America, based on hourly F2 critical frequency (foF2) and F layer virtual height (h’F) data. The study was carried out for quiet magnetic activity levels. All eruptions reached the Pinatubo intensity. A decrease of foF2 and of its amplitude of variation, and an increase of h’F in relation to their values during the day before and after the eruption were detected in some cases. In other cases the disturbance was detected for only one parameter, or for none. The absence of disturbances in the hourly records could be due to the lack of coincidence between the maximum departures of the parameters from the normal situation, and the recording time of the parameter. The observed disturbances are correlated with the eruption intensity.
publishDate 2004
dc.date.none.fl_str_mv 2004-04-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/867
10.22201/igeof.00167169p.2004.43.2.169
url http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/867
identifier_str_mv 10.22201/igeof.00167169p.2004.43.2.169
dc.language.none.fl_str_mv spa
eng
language spa
eng
dc.relation.none.fl_str_mv http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/867/822
http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/867/2581
dc.rights.none.fl_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional Autónoma de México. Instituto de Geofísica
publisher.none.fl_str_mv Universidad Nacional Autónoma de México. Instituto de Geofísica
dc.source.none.fl_str_mv Geofisica Internacional; Vol. 43 No. 2 (2004): April 1, 2004; 187-192
Geofísica Internacional; Vol. 43 Núm. 2 (2004): Abril 1, 2004; 187-192
2954-436X
0016-7169
10.22201/igeof.00167169p.2004.43.2
reponame:Geofísica Internacional
instname:UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO
instacron:UNAM
instname_str UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO
instacron_str UNAM
institution UNAM
reponame_str Geofísica Internacional
collection Geofísica Internacional
repository.name.fl_str_mv
repository.mail.fl_str_mv
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