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1. Identificação
Tipo de ReferênciaArtigo em Evento (Conference Proceedings)
Sitemtc-m21b.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34P/3K3BLPH
Repositóriosid.inpe.br/mtc-m21b/2015/08.11.16.10
Última Atualização2015:08.11.16.13.35 (UTC) administrator
Repositório de Metadadossid.inpe.br/mtc-m21b/2015/08.11.16.10.57
Última Atualização dos Metadados2018:06.04.02.55.37 (UTC) administrator
Chave SecundáriaINPE--PRE/
Chave de CitaçãoCuevaRoPaTsGrRa:2015:SpEcVa
TítuloSpread F echoes variability along solar flux and seasonality conditions over the 50- MHz radar on Christmas Island
Ano2015
Data de Acesso05 maio 2024
Tipo SecundárioPRE CI
Número de Arquivos1
Tamanho542 KiB
2. Contextualização
Autor1 Cueva, R. Y. C.
2 Rodrigues, F. S.
3 Paula, Eurico Rodrigues de
4 Tsunoda, R. T.
5 Groves, K. M.
6 Raulin, J. P.
Identificador de Curriculo1
2
3 8JMKD3MGP5W/3C9JH2U
Grupo1
2
3 DAE-CEA-INPE-MCTI-GOV-BR
Afiliação1 Universidade Presbiteriana Mackenzie
2 University of Texas
3 Instituto Nacional de Pesquisas Espaciais (INPE)
4 SRI International
5 Boston College
6 Universidade Presbiteriana Mackenzie
Endereço de e-Mail do Autor1
2
3 eurico.paula@inpe.br
Nome do EventoInternational Congress of the Brazilian Geophysical Society, 14
Localização do EventoRio de Janeiro, RJ
Data3-6 Aug.
Histórico (UTC)2015-08-11 16:10:57 :: simone -> administrator ::
2018-06-04 02:55:37 :: administrator -> simone :: 2015
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
ResumoPerturbations in the amplitude (or phase) of radio signals are caused by irregularities in the ionospheric electron density. Ionospheric structures can disrupt the propagation of radio waves, and are commonly observed, for instance, by ionospheric vertical radio sounders (ionosondes). For historical reasons, the signatures of ionospheric irregularities in different types observations (optical, radio, in-stu) are referred to as equatorial spread F (ESF). Previous studies show that the occurrence rate can be greatly affected by solar and magnetic conditions. Observations during the period of 2003 to 2012 of nighttime echoes made from the 50-MHz radar on Christmas Island (2.0o N, 157.4o W) have revealed time and altitude pattern distribution along the descending phase of solar cycle 23 and the recent extended solar minimum phase. We present the study of spread F echoes as a function of solar flux conditions and seasonality in order to quantify their variability. Under higher solar flux conditions, echoes reach higher altitudes but decay earlier. Only during solar minimum conditions the echoes exist throughout the whole night, since the post‐ reversal anti‐ zonal background electric field is weaker. Thus, irregularities during solar maximum will be dominated by dynamics near the time of the PRE. Since the population of irregularities during solar minimum exists throughout the whole night, post‐ reversal ionospheric conditions may play a role in the morphology of plasma irregularities, especially with the coincidentally weaker PRE during solar minimum. Peak time occurrence of echoes along the current period show a well defined pattern, meanwhile the peak altitude occurrence of echoes show a slight regular pattern.
ÁreaCEA
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4. Condições de acesso e uso
URL dos dadoshttp://urlib.net/ibi/8JMKD3MGP3W34P/3K3BLPH
URL dos dados zipadoshttp://urlib.net/zip/8JMKD3MGP3W34P/3K3BLPH
Grupo de Usuáriossimone
Grupo de Leitoresadministrator
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Visibilidadeshown
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Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Repositório Espelhourlib.net/www/2011/03.29.20.55
Unidades Imediatamente Superiores8JMKD3MGPCW/3ETL868
Lista de Itens Citandosid.inpe.br/mtc-m21b/2013/09.26.14.25.22 1
Acervo Hospedeirosid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notas
Campos Vaziosarchivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label language lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject targetfile tertiarymark tertiarytype type url versiontype volume
7. Controle da descrição
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