| 1. Identificação | |
| Tipo de Referência | Artigo em Evento (Conference Proceedings) |
| Site | mtc-m16b.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Repositório | sid.inpe.br/mtc-m17@80/2007/11.22.12.11 |
| Repositório de Metadados | sid.inpe.br/mtc-m17@80/2007/11.22.12.11.51 |
| Última Atualização dos Metadados | 2018:06.05.03.35.20 (UTC) administrator |
| Chave Secundária | INPE--PRE/ |
| Chave de Citação | BatistaCarrAbdu:2007:DoSpLa |
| Título | Equatorial spread F and plasma bubble generation: Does the sporadic E layer play a role?  |
| Ano | 2007 |
| Data de Acesso | 09 maio 2024 |
| Tipo Secundário | PRE CI |
| 2. Contextualização | |
| Autor | 1 Batista, Inez Staciarini 2 Carrasco, Alexander José 3 Abdu, Mangalathayil Ali |
| Grupo | 1 DAE-INPE-MCT-BR 2 DAE-INPE-MCT-BR 3 DAE-INPE-MCT-BR |
| Afiliação | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) |
| Nome do Evento | Latin-American Conference on Space Geophysics, 8 (COLAGE). |
| Localização do Evento | Merida, Mexico |
| Data | 11-17 July |
| Título do Livro | Proceedings |
| Tipo Terciário | Oral Session |
| Histórico (UTC) | 2007-11-22 13:05:06 :: simone -> administrator :: 2012-10-24 00:01:05 :: administrator -> simone :: 2013-02-20 15:20:05 :: simone -> administrator :: 2007 2018-06-05 03:35:20 :: administrator -> marciana :: 2007 |
| 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 plasma bubbles that occur at the low latitudes ionosphere and the irregularities associated to them are responsible for severe interference that can disrupt trans-ionospheric radio-propagation, up to the GHz frequency range, interfering on communication systems including the Global Positioning Systems (GPS). The general characteristics of spread F and bubbles, such as their variation with season, solar cycle, and magnetic activity, are fairly well understood. On the other hand, we still do not understand completely the cause of the day-to-day variability of the phenomenon, a crucial point when its prediction is concerned. It is well known that the occurrence of the equatorial spread F is associated with the rapid post-sunset rise of the F layer. Vertical and zonal electric fields are generated under the action of the F region dynamo. The eastward electric field is responsible for the vertical movement of the equatorial F region plasma through the ExB drift. The rapid post sunset rise of the equatorial F region layer is largely determined by this vertical plasma drift velocity enhancement, known as prereversal peak. On the other side, longitudinal gradients in the low-latitude E region conductivity, around sunset, strongly influence the development of the F region dynamo electric fields and the prereversal peak amplitude. In this work we use numerical models to investigate the interrelation between the prereversal enhancement and the occurrence of sporadic E layers at low-latitude regions. The first model considers the electrodynamical coupling of the low-latitude/equatorial E and F regions; the second model solves the continuity equation for E region species including the metallic ions, and includes the dynamics in order to study the formation of the sporadic E layer and its dependence on winds and electric fields. The results show that the E region conductivity around sunset, modified by the presence of sporadic E layers at certain latitudes, can affect significantly the development of the prereversal enhancement. Conversely, the vertical F region electric field, mapped to the E region, can inhibit the development of the sporadic E at specific latitudes. Ionospheric data obtained during the Conjugate Point Equatorial Experiment (COPEX) conducted in Brazil are used to help to clarify those points. |
| Área | CEA |
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAE > Equatorial spread F... |
| Conteúdo da Pasta doc | não têm arquivos |
| Conteúdo da Pasta source | não têm arquivos |
| Conteúdo da Pasta agreement | não têm arquivos |
| 4. Condições de acesso e uso | |
| Idioma | en |
| Grupo de Usuários | administrator simone administrator |
| Visibilidade | shown |
| 5. Fontes relacionadas | |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ETL868 |
| Acervo Hospedeiro | lcp.inpe.br/ignes/2004/02.12.18.39 cptec.inpe.br/walmeida/2003/04.25.17.12 |
| 6. Notas | |
| Campos Vazios | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination documentstage doi e-mailaddress edition editor electronicmailaddress format identifier isbn issn keywords label lineage mark mirrorrepository nextedition notes numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup readpermission resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark type url versiontype volume |
| 7. Controle da descrição | |
| e-Mail (login) | marciana |
| atualizar | |