New Findings of the Sporadic E (Es) Layer Development Around the Magnetic Equator During a High-Speed Solar (HSS) Wind Stream Event

Página do item simplificado
dc.contributor.authorResende, Laysa Cristina Araújo
dc.contributor.authorZhu, Y.
dc.contributor.authorDenardini, Clezio Marcos
dc.contributor.authorBatista, Inez Staciarini
dc.contributor.authorShi, Jiankui
dc.contributor.authorMoro, Juliano
dc.contributor.authorChen, Sony Su
dc.contributor.authorSantos, Fredson Conceição
dc.contributor.authorSilva, Ligia Alves da
dc.contributor.authorAndrioli, Vania Fatima
dc.contributor.authorMuella, Marcio Tadeu de Assis Honorato
dc.contributor.authorFagundes, Paulo Roberto
dc.contributor.authorCarrasco, Alexander Jose
dc.contributor.authorPillat, Valdir Gil
dc.contributor.authorWang, Chi
dc.contributor.authorLiu, Z.
dc.date.accessioned2025-04-07T14:06:05Z
dc.date.available2025-04-07T14:06:05Z
dc.date.issued22021
dc.description.abstractThe equatorial (Esq) and blanketing (Esb) sporadic (Es) layers occur due to the EquatorialElectrojet Current (EEJ) plasma instabilities and tidal wind components, respectively. Both Esq and Esb layers can appear concurrently over some Brazilian equatorial regions due to the peculiar geomagnetic field configuration in this sector. Previous works indicate that the inclination angle limit for the Esq occurrence in ionograms is 7°. However, we found evidence that regions more distant can also experience such equatorial dynamics during disturbed periods. In this context, we deeply investigated this EEJ influence expansion effect by analyzing the Esq layers in regions not so close to the magnetic equator during a high-speed solar wind stream event that occurred on May 05 and 06, 2018. To explain these atypical Esq layer occurrences, we considered the Es layer parameters obtained from digital ionosondes over the Brazilian regions, São Luís (dip: 9.5°), and Araguatins (dip: 10.5°). We use magnetometer data and a model named MIRE (E Region Ionospheric Model) to validate this mechanism. The results show that the eastward electric field of the Gradient Drift instability in the EEJ is effective during the magnetic storm main phase in the boundary equatorial magnetic sites, creating the Es q layers. Thus, the EEJ plasma irregularity superimposes the wind shear mechanism, changing the Es layer dynamics during disturbed periods over the magnetic equator boundary sites. Therefore, this work establishes new findings of the EEJ influence expansion dynamics in the Es layer formation over the Brazilian regions, which was considered in MIRE for the first time.
dc.description.physical17 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.uriCAPES (88887.362982/2019-00) FAPESP (2012/08445-9, 2019/09361-2)
dc.format.mimetypePDF
dc.identifier.affiliationState Key Laboratory of Space Weather
dc.identifier.affiliationInstituto Nacional de Pesquisas Espaciais
dc.identifier.affiliationSouthern Space Coordination
dc.identifier.affiliationUniversidade do Vale do Paraíba
dc.identifier.affiliationInstituto Federal de Educação Ciência e Tecnologia do Maranhão
dc.identifier.affiliationUniversidad de Los Andes
dc.identifier.bibliographicCitationRESENDE, Laysa Cristina Araújo et al. New Findings of the Sporadic E (Es) Layer Development Around the Magnetic Equator During a High‐Speed Solar (HSS) Wind Stream Event. Journal of Geophysical Research: Space Physics, v. 126, n. 9, p. 1-17, 2021. Disponível em:
dc.identifier.doi10.1029/2021JA029416
dc.identifier.urihttps://repositorio.univap.br/handle/123456789/818
dc.language.isoen_US
dc.publisherAdvancing Earth and Space Sciences
dc.rights.holderJournal of Geophysical Research: Space Physics
dc.subject.keywordEquatorial magnetic
dc.subject.keywordDisturbed times
dc.titleNew Findings of the Sporadic E (Es) Layer Development Around the Magnetic Equator During a High-Speed Solar (HSS) Wind Stream Event
dc.typeArtigos de Periódicos

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
New Findings of the Sporadic E Es Layer Development Around the Magnetic Equator.pdf
Tamanho:
3.74 MB
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