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@InProceedings{SilvaDSAMJSMMMDV:2018:RaBeEl,
               author = "Silva, Marlos Rockenbach da and Deggeroni, Vin{\'{\i}}cius and 
                         Silva, Ligia Alves da and Alves, Livia Ribeiro and Moura, Vitor 
                         and Jauer, Paulo Ricardo and Silveira, Marcos Vin{\'{\i}}cius da 
                         and Medeiros, Cl{\'a}udia and Marchezi, Jos{\'e} Paulo and 
                         Mendes J{\'u}nior, Odim and Dal Lago, Alisson and Vieira, 
                         Lu{\'{\i}}s Eduardo Antunes",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
                title = "Radiation belt electronís flux dropout during intense geomagnetic 
                         storms",
                 year = "2018",
         organization = "Cospar Scientific Assembly, 42.",
             abstract = "The solar structures that eventually reach the Earth, causing 
                         intense geomagnetic storms, modify the geomagnetic field where the 
                         electrons are trapped in the Van Allen radiation belts. The way in 
                         which intense geomagnetic storms may affect the variability of the 
                         relativistic electron fluxes in the radiation belts is not 
                         completely understood, and here we address this point. We used 
                         data from the Relativistic Electron-Proton Telescope (REPT) 
                         instrument aboard NASAs twin Van Allen Probes. To identify and 
                         quantize the intensity of storms we used the symmetric index, 
                         SYM-H, and to identify the cause of the geomagnetic storms, we 
                         used data from the solar wind: speed, dynamic pressure and 
                         magnetic field as measured by the Advanced Composition Explorer 
                         (ACE), and Deep Space Climate Observatory (DSCOVR) satellites, 
                         which are orbiting the gravitational balance point between the Sun 
                         and the Earth. The comparison of electron fluxes in the outer 
                         radiation belts with Interplanetary Medium data showed the 
                         importance of the interplanetary magnetic field (IMF) Bz component 
                         (in Geocentric Solar Magnetospheric - GSM - coordinates) on the 
                         trapped electron flux during the occurrence of geomagnetic storms. 
                         Negative values of the IMF Bz component interconnect the 
                         interplanetary and geomagnetic fields, allowing particles to 
                         escape throughout the magnetosphere to the solar wind, causing 
                         decreases in the electron flux in periods that coincide with 
                         negative IMF Bz values. This suggests that the particles flux in 
                         the radiation belts depends on the IMF Bz component the same way 
                         it does for the occurrence of intense geomagnetic storms. It is 
                         necessary a deeper investigation to understand the contribution of 
                         the different mechanisms of the internal and external phenomena of 
                         the Earths magnetosphere to fully understand and describe the 
                         behavior of trapped particles.",
  conference-location = "Pasadena, California",
      conference-year = "14-22 July",
             language = "en",
           targetfile = "silva_radiation.pdf",
        urlaccessdate = "28 nov. 2020"
}


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