1. Identificação | |
Tipo de Referência | Artigo em Revista Científica (Journal Article) |
Site | mtc-m21c.sid.inpe.br |
Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
Identificador | 8JMKD3MGP3W34R/3UQQAQH |
Repositório | sid.inpe.br/mtc-m21c/2020/01.24.09.34 |
Última Atualização | 2020:01.24.09.34.49 (UTC) simone |
Repositório de Metadados | sid.inpe.br/mtc-m21c/2020/01.24.09.34.49 |
Última Atualização dos Metadados | 2022:03.18.22.11.32 (UTC) administrator |
DOI | 10.5194/angeo-38-35-2020 |
ISSN | 0992-7689 |
Chave de Citação | SilvaPadiAlve:2020:LaVaPc |
Título | Latitudinal variation of Pc3–Pc5 geomagnetic pulsation amplitude across the dip equator in central South America |
Ano | 2020 |
Mês | Jan. |
Data de Acesso | 13 maio 2024 |
Tipo de Trabalho | journal article |
Tipo Secundário | PRE PI |
Número de Arquivos | 1 |
Tamanho | 1151 KiB |
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2. Contextualização | |
Autor | 1 Silva, Graziela Belmira Dias da 2 Padilha, Antonio Lopes 3 Alves, Livia Ribeiro |
Identificador de Curriculo | 1 2 8JMKD3MGP5W/3C9JGJG |
Grupo | 1 GESAST-CEA-SESPG-INPE-MCTIC-GOV-BR 2 DIDGE-CGCEA-INPE-MCTIC-GOV-BR 3 DIDGE-CGCEA-INPE-MCTIC-GOV-BR |
Afiliação | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) |
Endereço de e-Mail do Autor | 1 graziela.silva@inpe.br 2 antonio.padilha@inpe.br 3 livia.alves@inpe.br |
Revista | Annales Geophysicae |
Volume | 38 |
Número | 1 |
Páginas | 35-49 |
Nota Secundária | A2_INTERDISCIPLINAR A2_GEOCIÊNCIAS A2_ENGENHARIAS_I B2_CIÊNCIAS_BIOLÓGICAS_I B2_ASTRONOMIA_/_FÍSICA |
Histórico (UTC) | 2020-01-24 09:34:49 :: simone -> administrator :: 2020-01-24 09:34:49 :: administrator -> simone :: 2020 2020-01-24 09:35:01 :: simone -> administrator :: 2020 2020-01-24 18:25:27 :: administrator -> simone :: 2020 2020-06-23 22:51:14 :: simone -> administrator :: 2020 2020-07-08 17:10:52 :: administrator -> simone :: 2020 2020-12-14 13:54:03 :: simone -> administrator :: 2020 2022-03-18 22:11:32 :: administrator -> simone :: 2020 |
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3. Conteúdo e estrutura | |
É a matriz ou uma cópia? | é a matriz |
Estágio do Conteúdo | concluido |
Transferível | 1 |
Tipo do Conteúdo | External Contribution |
Tipo de Versão | publisher |
Resumo | In order to clarify the equatorial electrojet effects on ground magnetic pulsations in central South America, we statistically analyzed the amplitude structure of Pc3 and Pc5 pulsations recorded during days considered quiet to moderately disturbed at multiple equatorial stations nearly aligned along the 10◦ magnetic meridian. It was observed that Pc3 amplitudes are attenuated around noon at the dip equator for periods shorter than ∼ 35 s. It is proposed that daytime Pc3s are related to MHD (magnetohydrodynamic) compressional wave vertically incident on the ionosphere, with the screening effect induced by enhanced conductivity in the dip equator causing wave attenuation. Daytime Pc5s showed amplitude enhancement at all equatorial stations, which can be explained by the model of waves excited at higher latitudes and propagating equatorward in an Earthionosphere waveguide. However, a slight depression in Pc5 amplitude compared to neighboring equatorial stations and a phase lag in relation to an off-equatorial station were detected at the dip equator. This wave amplitude depression in the Pc5 frequency band cannot be explained by the ionospheric waveguide model alone, and we propose that an alternative propagation model that allows ULF (ultra-low-frequency) waves to penetrate directly from the magnetosphere to low latitudes could be operating simultaneously to produce these features at the dip equator. Significant effects of the sunrise terminator on Pc3 pulsations were also observed at the stations closest to the dip equator. Contrary to what is reported at other longitudes, in central South America the sunrise effect decreases the D/H amplitude ratio. We suggest that these differences may arise from the unique characteristics of this sector, with a strong longitudinal variation in the magnetic declination and precipitation of energetic particles due to the presence of the South Atlantic Magnetic Anomaly (SAMA). The Hcomponent amplification can be explained by enhancements of the zonal electric field near the magnetic equator driven by F-region neutral winds and waves in the fast-mode of propagation during sunrise. |
Área | CEA |
Arranjo 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Latitudinal variation of... |
Arranjo 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > GES > Latitudinal variation of... |
Conteúdo da Pasta doc | acessar |
Conteúdo da Pasta source | não têm arquivos |
Conteúdo da Pasta agreement | |
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4. Condições de acesso e uso | |
URL dos dados | http://urlib.net/ibi/8JMKD3MGP3W34R/3UQQAQH |
URL dos dados zipados | http://urlib.net/zip/8JMKD3MGP3W34R/3UQQAQH |
Idioma | en |
Arquivo Alvo | silva_latitudinal.pdf |
Grupo de Usuários | simone |
Grupo de Leitores | administrator simone |
Visibilidade | shown |
Política de Arquivamento | allowpublisher allowfinaldraft |
Permissão de Atualização | não transferida |
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5. Fontes relacionadas | |
Unidades Imediatamente Superiores | 8JMKD3MGPCW/3EU29DP 8JMKD3MGPCW/3F2PBEE |
Lista de Itens Citando | sid.inpe.br/bibdigital/2013/10.01.22.11 5 sid.inpe.br/mtc-m21/2012/07.13.14.40.26 2 |
Divulgação | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. |
Acervo Hospedeiro | urlib.net/www/2017/11.22.19.04 |
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6. Notas | |
Campos Vazios | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn keywords label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url |
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7. Controle da descrição | |
e-Mail (login) | simone |
atualizar | |
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