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/3T3HSMP |
Repositório | sid.inpe.br/mtc-m21c/2019/04.02.16.38 (acesso restrito) |
Última Atualização | 2019:04.02.16.38.34 (UTC) simone |
Repositório de Metadados | sid.inpe.br/mtc-m21c/2019/04.02.16.38.34 |
Última Atualização dos Metadados | 2022:03.18.22.11.29 (UTC) administrator |
DOI | 10.1029/2018SW002094 |
ISSN | 1542-7390 |
Chave de Citação | EspinosaSarmientoPadiAlve:2019:CaStLo |
Título | Effects of ionospheric conductivity and ground conductance on geomagnetically induced currents during geomagnetic storms: case studies at low-latitude and Equatorial regions |
Ano | 2019 |
Mês | Feb. |
Data de Acesso | 06 maio 2024 |
Tipo de Trabalho | journal article |
Tipo Secundário | PRE PI |
Número de Arquivos | 1 |
Tamanho | 3553 KiB |
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2. Contextualização | |
Autor | 1 Espinosa Sarmiento, Karen Viviana 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 karen.sarmiento@inpe.br 2 antonio.padilha@inpe.br 3 livia.alves@inpe.br |
Revista | Space Weather |
Volume | 17 |
Número | 2 |
Páginas | 252-268 |
Nota Secundária | B1_INTERDISCIPLINAR B1_GEOCIÊNCIAS B2_ASTRONOMIA_/_FÍSICA |
Histórico (UTC) | 2019-04-02 16:38:44 :: simone -> administrator :: 2019 2022-03-18 22:11:29 :: administrator -> simone :: 2019 |
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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 | Geomagnetic field variations recorded by fluxgate magnetometers are used to evaluate geomagnetically induced currents (GICs) under the equatorial electrojet (EEJ) and South Atlantic Magnetic Anomaly (SAMA) during two geomagnetic storms in March and June 2015. Geomagnetic stations with information about the underground electrical conductivity structure and that can be approximated by unidimensional (1-D) models for calculation of the geoelectric field are selected. GICs levels are estimated using a realistic local power grid model located in the central region of Brazil, artificially moved to the sites where the geomagnetic measurements are available. GIC magnitudes are not large during the storms, and a maximum amplitude of 3.8 A was estimated at an equatorial station positioned over high resistivity underground during the main phase of the June storm. Effects of the ionospheric currents over the measurement sites and of the conductivity distribution beneath these sites are also evaluated. It is observed that both (EEJ) and (SAMA) increase the GICs amplitudes, with the greatest effects associated with daytime (EEJ) currents. A cutoff frequency was identified for both the (EEJ) and (SAMA) so that signals with frequencies lower than 2 mHz (periods longer than 500 s) are not amplified by the ionospheric currents. In relation to the underlying conductivity structure, GIC magnitude is affected by variation of the surface impedance and the sampling rate of the geomagnetic field. In our case, differences in amplitude of the surface impedance at the Nyquist frequency control the relative effects of the ground conductance between the stations. |
Área | CEA |
Arranjo 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Effects of ionospheric... |
Arranjo 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > GES > Effects of ionospheric... |
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 | |
Idioma | en |
Arquivo Alvo | Espinosa_et_al-2019-Space_Weather.pdf |
Grupo de Usuários | simone |
Grupo de Leitores | administrator simone |
Visibilidade | shown |
Permissão de Leitura | deny from all and allow from 150.163 |
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 4 sid.inpe.br/mtc-m21/2012/07.13.14.40.26 2 |
Divulgação | WEBSCI; SCOPUS. |
Acervo Hospedeiro | urlib.net/www/2017/11.22.19.04 |
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6. Notas | |
Campos Vazios | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn keywords label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project 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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