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@InProceedings{AlvesJSSMMRKNWS:2017:AmMaFi,
               author = "Alves, Livia Ribeiro and Jauer, Paulo Ricardo and Souza, Vitor 
                         Moura Cardoso e Silva and Silva, Ligia Alves da and Marchezi, 
                         Jos{\'e} Paulo and Medeiros, Cl{\'a}udia and Rockenbach da 
                         Silva, Marlos and Kanekal, Shrikanth G. and N. , Baker Daniel and 
                         Wygant, John R. and Sibeck, David G.",
          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 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         Heliophysics Laboratory, NASA Goddard Space Flight Center and LASP 
                         and {University of Minnesota} and {NASA GSFC}",
                title = "Ambient magnetic field weakness during chorus event and their 
                         implication on the outer radiation belt dynamic",
            booktitle = "Proceedings...",
                 year = "2017",
         organization = "AGU Fall Meeting",
             abstract = "The Earth's magnetosphere is continuously disturbed by the solar 
                         wind plasma incident upon it, and such a disturbance in 
                         association with internal (to the magnetosphere) physical 
                         processes may engender both the generation and amplification of 
                         Very Low Frequency (VLF) range whistler-mode chorus waves in the 
                         inner magnetosphere. Chorus waves are known to interact with 
                         particles in the outer Van Allen radiation belt resulting in both 
                         acceleration and pitch angle scattering into the loss cone, which 
                         in turn leads to flux dropouts. The first two years of operational 
                         Van Allen Probes magnetometer data were analyzed regarding the 
                         local magnetic field variation during periods of relativistic 
                         electron flux dropouts. It was observed that the ambient magnetic 
                         field at the spacecraft's apogee can vary from 180 nT to as low as 
                         30 nT. Also, the high time resolution magnetic field data show 
                         that the whistler-mode chorus waves can often occur throughout the 
                         periods in which the ambient magnetic field is weakened, i.e. less 
                         than about 70 nT. We investigate the likelihood of the weakness of 
                         the ambient magnetic field to be an additional parameter related 
                         to outer radiation belt electron flux dropouts during periods when 
                         only chorus waves are present.",
  conference-location = "New Orleans",
      conference-year = "11-15 Dec.",
             language = "en",
        urlaccessdate = "25 nov. 2020"
}


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