1. Identificação | |
Tipo de Referência | Artigo em Evento (Conference Proceedings) |
Site | mtc-m21d.sid.inpe.br |
Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
Identificador | 8JMKD3MGP3W34T/4B639SP |
Repositório | sid.inpe.br/mtc-m21d/2024/04.17.15.26 |
Repositório de Metadados | sid.inpe.br/mtc-m21d/2024/04.17.15.26.45 |
Última Atualização dos Metadados | 2024:04.19.09.15.03 (UTC) administrator |
Chave Secundária | INPE--PRE/ |
Chave de Citação | FerreiraSilAlvMarDeg:2024:MeReEl |
Título | Mechanisms of Relativistic Electron Flux Dropouts in the Outer Radiation Belt Following the Occurrence of Supercritical Interplanetary Quasi-Parallel Shock Waves |
Ano | 2024 |
Data de Acesso | 19 maio 2024 |
Tipo Secundário | PRE CI |
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2. Contextualização | |
Autor | 1 Ferreira, Karen Júlia Coldebella 2 Silva, Ligia Alves da 3 Alves, Livia Ribeiro 4 Marchezi, José Paulo 5 Deggeroni, Vinicius |
Grupo | 1 DIPGR-COEPE-INPE-MCTI-GOV-BR 2 DIHPA-CGCE-INPE-MCTI-GOV-BR 3 DIHPA-CGCE-INPE-MCTI-GOV-BR 4 DICEP-CGCE-INPE-MCTI-GOV-BR 5 GESAST-CEA-DIPGR-INPE-MCTI-GOV-BR |
Afiliação | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 Instituto Nacional de Pesquisas Espaciais (INPE) |
Endereço de e-Mail do Autor | 1 karen.ferreira@gmail.com 2 ligia.silva@inpe.br 3 livia.alves@inpe.br 4 jose.marchezi@inpe.br 5 vinicius.deggeroni@inpe.br |
Nome do Evento | Conferencia Latinoamericana de Geofísica Espacial, 14 |
Localização do Evento | Monterrey, Mexico |
Data | 08-12 Apr. 2024 |
Título do Livro | Proceedings |
Histórico (UTC) | 2024-04-17 15:26:45 :: simone -> administrator :: 2024-04-19 09:15:03 :: administrator -> simone :: 2024 |
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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 | Interplanetary shock waves, upon interacting with Earth's magnetosphere, elicit a complex cascade of responses. A lingering question pertains to the influence of shock obliquity on electron population dynamics in the outer radiation belt and the ensuing variability. This study focuses on the analysis of two specific case studies involving quasi-parallel supercritical interplanetary shock waves. The objective is to discern the mechanisms responsible for the observed dropouts in relativistic electron flux (1.8 to 3.4 MeV) following these events. The chosen case studies are part of a comprehensive dataset comprising 118 interplanetary shock waves that transpired during the Van Allen Probes Era (20122019). Using low beta and high fast Mach number as criteria, 26 shocks were identified as supercritical. Employing the mixed modes method of shock normal calculation, 8 shocks were pinpointed as quasi-parallel. Among them, we selected two events with dropouts initiating within a maximum of two hours after the shock arrival. Notably, both events featured dropouts initiated after the shock that reached 3.5 Earth radii (R_E). Concurrently with the shock arrival, there is an increase in ULF wave activity, characterized by a high power spectral density between 0 and 20 mHz in both events. Additionally, we observed an increase in chorus wave activity, coinciding with the shock arrival in the first event and 3 hours later in the second event, with both instances manifesting in the upper-frequency band. Analysis of the phase space density (PhSD) profiles uncovered a predominance of the local loss mechanism, driven by Chorus waves in both cases. Despite notable ULF wave activity following the shock impact, the majority of these waves were concentrated in the compressional mode, exhibiting potency levels reaching 10⁴ nT²/Hz. This mode is comparatively less conducive to interacting with electrons in the outer radiation belt than the poloidal mode, which exhibited potency levels reaching 10³ nT²/Hz. This disparity arises from the electric component of the poloidal mode aligning with the electrons' trajectory, boosting interaction efficacy. Conversely, in the compressional mode, the electric component is relatively diminished. Furthermore, the toroidal mode's electric component is even smaller, placing it outside the scope of this study. Subsequent steps involve investigating the characteristics of Chorus waves, including obliquity and planarity, and calculating radial diffusion coefficients (D_LL). These findings contribute significantly to comprehending the role of interplanetary shocks in generating the physical mechanisms responsible for variability in the outer radiation belt's electron flux. |
Área | CEA |
Arranjo 1 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > GES > Mechanisms of Relativistic... |
Arranjo 2 | urlib.net > COEPE > Mechanisms of Relativistic... |
Conteúdo da Pasta doc | não têm arquivos |
Conteúdo da Pasta source | não têm arquivos |
Conteúdo da Pasta agreement | |
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4. Condições de acesso e uso | |
Idioma | en |
Grupo de Usuários | simone |
Visibilidade | shown |
Permissão de Atualização | não transferida |
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5. Fontes relacionadas | |
Repositório Espelho | urlib.net/www/2021/06.04.03.40.25 |
Unidades Imediatamente Superiores | 8JMKD3MGPCW/3F2PBEE 8JMKD3MGPCW/46L2EES |
Acervo Hospedeiro | urlib.net/www/2021/06.04.03.40 |
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6. Notas | |
Campos Vazios | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark 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 tertiarytype type url volume |
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7. Controle da descrição | |
e-Mail (login) | simone |
atualizar | |
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