Ionospheric GPS-TEC responses from equatorial region to the EIA crest in the South American sector under intense space weather conditions

Página do item simplificado
dc.contributor.authorAbreu, Alessandro José de
dc.contributor.authorCorreia, Emilia
dc.contributor.authorDenardini, Clezio Marcos
dc.contributor.authorJesus, Rodolfo de
dc.contributor.authorVenkatesh, Kavutarapu
dc.contributor.authorRoberto, Marisa
dc.contributor.authorAbalde, José Ricardo
dc.contributor.authorFagundes, Paulo Roberto
dc.contributor.authorBolzan, Maurício José Alves
dc.contributor.authorGende, Maurício Alfredo
dc.date.accessioned2025-03-17T18:46:47Z
dc.date.available2025-03-17T18:46:47Z
dc.date.issued22022
dc.description.abstractWe present and discuss the ionospheric F-region observations from equator to the equatorial ionization anomaly (EIA) regions over the South American sector during an intense space weather event occurred between 27 and May 29, 2017. During this geomagnetic storm, the symmetric-H (SYM-H) reached a minimum of − 142 nT at ~0700 UT on May 28, 2017. For this investigation, we analyze the vertical total electron content (VTEC) observations from a chain of nearly 120 Global Positioning System (GPS) stations. Magnetometer measurements obtained at two stations in the low latitude regions are also presented. The observations do not indicate prompt penetration electric field (PPEF) effects in the VTEC variations. Magnetometer’s observations over Cuiaba ´ (CBA) and Cachoeira Paulista (CXP) in central west and south parts of Brazil, respectively, have shown a strong crosscorrelation with SYM-H in the period between 3 and 48 h. The results also show positive ionospheric storm phase during the recovery phase on May 28, 2017. Positive effect during the recovery phase of the geomagnetic storm is possibly associated with effects of disturbances winds. During the recovery phase, a strong intensification of the EIA took place, possibly related to an additional ionization effect. The VTEC values show differences between the west and east sectors. This indicates that the EIA crest is stronger in the east sector than in the west sector, possibly due to the combination of disturbance wind effects and geomagnetic field geometry where in the east sector the field lines are more inclined.
dc.description.physical16 p.
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.uriFAPESP (2019/05455–2) CNPQ (103373/2019–5)
dc.format.mimetypePDF
dc.identifier.affiliationInstituto Nacional de Pesquisas Espaciais
dc.identifier.affiliationInstituto Tecnológico de Aeronautica
dc.identifier.affiliationUniversidade Presbiteriana Mackenzie
dc.identifier.affiliationPhysical Research Laboratory
dc.identifier.affiliationUniversidade do Vale do Paraíba
dc.identifier.affiliationUniversidade Federal de Jataí
dc.identifier.affiliationUniversidad Nacional de La Plata
dc.identifier.bibliographicCitationABREU, Alessandro José de et al. Ionospheric GPS-TEC responses from equatorial region to the EIA crest in the South American sector under intense space weather conditions. Journal of Atmospheric and Solar-Terrestrial Physics, v. 227, p. 1-16, 2022. Disponível em:
dc.identifier.doi10.1016/j.jastp.2021.105801
dc.identifier.urihttps://repositorio.univap.br/handle/123456789/707
dc.language.isoen_US
dc.publisherElsevier
dc.rights.holderJournal of Atmospheric and Solar-Terrestrial Physics
dc.subject.keywordGeomagnetic storm
dc.subject.keywordIonosphere
dc.subject.keywordGPS
dc.titleIonospheric GPS-TEC responses from equatorial region to the EIA crest in the South American sector under intense space weather conditions
dc.typeArtigos de Periódicos

Arquivos

Pacote Original
Agora exibindo 1 - 2 de 2
Nenhuma Miniatura disponível
Nome:
Ionospheric GPS-TEC responses from equatorial region to the EIA crest in the South American sector under intense space weather conditions.pdf
Tamanho:
17.59 MB
Formato:
Adobe Portable Document Format
Descrição:
Acesso via CAPES
Baixar
Imagem de Miniatura
Nome:
Ionospheric GPS-TEC responses from equatorial region to the EIA crest in the South American.pdf
Tamanho:
298.09 KB
Formato:
Adobe Portable Document Format
Baixar
Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Baixar

Coleções

Produção acadêmica-PPGFA