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dc.contributor.author
de Jesus, R.
dc.contributor.author
Sahai, Y.
dc.contributor.author
Fagundes, P. R.
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de Abreu, A. J.
dc.contributor.author
Brunini, Claudio Antonio
dc.contributor.author
Gende, Mauricio Alfredo
dc.contributor.author
Bittencourt, J. A.
dc.contributor.author
Abalde, J. R.
dc.contributor.author
Pillat, V. G.
dc.date.available
2017-03-06T19:44:14Z
dc.date.issued
2013-07
dc.identifier.citation
de Jesus, R.; Sahai, Y.; Fagundes, P. R.; de Abreu, A. J.; Brunini, Claudio Antonio; et al.; Response of equatorial, low- and mid-latitude F-region in the American sector during the intense geomagnetic storm on 24–25 October 2011; Elsevier; Advances In Space Research; 52; 1; 7-2013; 147-157
dc.identifier.issn
0273-1177
dc.identifier.uri
http://hdl.handle.net/11336/13567
dc.description.abstract
In this paper, we present and discuss the response of the ionospheric F-region in the American sector during the intense geomagnetic storm which occurred on 24–25 October 2011. In this investigation ionospheric sounding data obtained of 23, 24, 25, and 26 October 2011 at Puerto Rico (United States), Jicamarca (Peru), Palmas, Sa˜o Jose´ dos Campos (Brazil), and Port Stanley, are presented. Also, the GPS observations obtained at 12 stations in the equatorial, low-, mid- and high-mid-latitude regions in the American sector are presented. During the fast decrease of Dst (about 54 nT/h between 23:00 and 01:00 UT) on the night of 24–25 October (main phase), there is a prompt penetration of electric field of magnetospheric origin resulting an unusual uplifting of the F region at equatorial stations. On the night of 24–25 October 2011 (recovery phase) equatorial, low- and mid-latitude stations show h0 F variations much larger than the average variations possibly associated with traveling ionospheric disturbances (TIDs) caused by Joule heating at high latitudes. The foF2 variations at mid-latitude stations and the GPS-VTEC observations at mid- and low-latitude stations show a positive ionospheric storm on the night of 24–25 October, possibly due to changes in the large-scale wind circulation. The foF2 observations at mid-latitude station and the GPS-VTEC observations at mid- and high-mid-latitude stations show a negative ionospheric storm on the night of 24–25 October, probably associated with an increase in the density of molecular nitrogen. During the daytime on 25 October, the variations in foF2 at mid-latitude stations show large negative ionospheric storm, possibly due to changes in the O/N2 ratio. On the night of 24–25, ionospheric plasma bubbles (equatorial irregularities that extended to the low- and mid-latitude regions) are observed at equatorial, lowand mid-latitude stations. Also, on the night of 25–26, ionospheric plasma bubbles are observed at equatorial and low-latitude regions.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Space Weather
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Geomagnetic Storm
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Ionosphere
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Ionospheric Irregularities
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Meteorología y Ciencias Atmosféricas
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Response of equatorial, low- and mid-latitude F-region in the American sector during the intense geomagnetic storm on 24–25 October 2011
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-03-06T14:07:43Z
dc.journal.volume
52
dc.journal.number
1
dc.journal.pagination
147-157
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: de Jesus, R.. Universidade do Vale do Paraíba; Brasil
dc.description.fil
Fil: Sahai, Y.. Universidade do Vale do Paraíba; Brasil
dc.description.fil
Fil: Fagundes, P. R.. Universidade do Vale do Paraíba; Brasil
dc.description.fil
Fil: de Abreu, A. J.. Universidade do Vale do Paraíba; Brasil
dc.description.fil
Fil: Brunini, Claudio Antonio. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Gende, Mauricio Alfredo. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Bittencourt, J. A.. Centro de Previsao de Tempo e Estudos Climaticos. Instituto Nacional de Pesquisas Espaciais; Brasil
dc.description.fil
Fil: Abalde, J. R.. Universidade do Vale do Paraíba; Brasil
dc.description.fil
Fil: Pillat, V. G.. Universidade do Vale do Paraíba; Brasil
dc.journal.title
Advances In Space Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.asr.2013.03.017
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0273117713001701
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