| 1. Identificação | ||||
| Tipo de Referência | Artigo em Evento (Conference Proceedings) | |||
| Site | mtc-m21c.sid.inpe.br | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identificador | 8JMKD3MGP3W34R/3SB3FF5 | |||
| Repositório | sid.inpe.br/mtc-m21c/2018/12.03.12.59 | |||
| Última Atualização | 2021:03.01.15.32.37 (UTC) simone | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21c/2018/12.03.12.59.46 | |||
| Última Atualização dos Metadados | 2021:03.01.15.32.37 (UTC) simone | |||
| Chave Secundária | INPE--PRE/ | |||
| Chave de Citação | EspinosaSarmientoPadiAlve:2018:EsGeIn | |||
| Título | Estimation of geomagnetically Induced Currents at Low Latitude and Equatorial regions of Brazil during two great magnetic storms of 2015  | |||
| Ano | 2018 | |||
| Data de Acesso | 10 maio 2024 | |||
| Tipo Secundário | PRE CI | |||
| Número de Arquivos | 1 | |||
| Tamanho | 68 KiB | |||
| 2. Contextualização | ||||
| Autor | 1 Espinosa Sarmiento, Karen Viviana 2 Padilha, Antônio Lopes 3 Alves, Livia Ribeiro | |||
| Identificador de Curriculo | 1 2 8JMKD3MGP5W/3C9JGJG | |||
| Grupo | 1 DIDGE-CGCEA-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 | |||
| Nome do Evento | AGU Fall Meeting | |||
| Localização do Evento | Washington, D. C. | |||
| Data | 10-14 dec. | |||
| Histórico (UTC) | 2018-12-03 12:59:46 :: simone -> administrator :: 2019-01-14 17:06:39 :: administrator -> simone :: 2018 | |||
| 3. Conteúdo e estrutura | ||||
| É a matriz ou uma cópia? | é a matriz | |||
| Estágio do Conteúdo | concluido | |||
| Transferível | 1 | |||
| Tipo do Conteúdo | External Contribution | |||
| Resumo | The South American longitudinal sector presents the unique feature of the presence of daytime equatorial electrojet currents (EEJ) and the South Atlantic Magnetic Anomaly (SAMA), where the global minimum intensity of the geomagnetic field is observed. Enhanced amplitudes are observed in the horizontal magnetic components recorded on the ground within the areas of influence of both the EEJ and the SAMA and therefore it is expected that significant enhancements of GIC magnitude also occur in these regions. We use here geomagnetic field variations data recorded by fluxgate magnetometers from the Brazilian space weather program (EMBRACE) to evaluate GIC effects during two strong geomagnetic storms in March (Dst = −222nT) and June (Dst = −204nT) 2015. Among the available geomagnetic stations, we selected those with information about the underground electrical conductivity structure and that can be approximated by 1-D models for calculation of the geoelectric field. GIC 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. Maximum GIC amplitude of about 8 A was estimated at an equatorial station positioned over high resistivity underground, associated with the arrival of an interplanetary pressure pulse just behind two other pulses during the June storm. The results are also interpreted in terms of the ionospheric currents over the measurement sites and the conductivity distribution beneath these sites. It is observed that both EEJ and SAMA increase the GIC amplitudes, with the greatest effects associated with EEJ. In relation to the underlying conductivity structure, the higher GIC effects are associated with low conductance at crustal depths, with upper mantle depths showing minor effect. | |||
| Área | CEA | |||
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Estimation of geomagnetically... | |||
| 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/3SB3FF5 | |||
| URL dos dados zipados | http://urlib.net/zip/8JMKD3MGP3W34R/3SB3FF5 | |||
| Idioma | en | |||
| Arquivo Alvo | espinosa_estimation.pdf | |||
| Grupo de Usuários | simone | |||
| Grupo de Leitores | administrator simone | |||
| Visibilidade | shown | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3EU29DP | |||
| Lista de Itens Citando | sid.inpe.br/mtc-m21/2012/07.13.14.40.26 4 | |||
| Acervo Hospedeiro | urlib.net/www/2017/11.22.19.04 | |||
| 6. Notas | ||||
| Campos Vazios | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url versiontype volume | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||