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@InProceedings{SilvaSAVSJGMAMVWSLGDSPABFBKKG:2019:CoULWa,
               author = "Silva, Ligia Alves da and Sibeck, David G. and Alves, Livia 
                         Ribeiro and Vieira, Lu{\'{\i}}s Eduardo Antunes and Souza, Vitor 
                         Moura Cardoso e Silva and Jauer, Paulo Ricardo and G. , 
                         Claudepierre Seth and Marchezi, Jos{\'e} Paulo and Agapitov, 
                         Oleksiy V. and Medeiros, Cl{\'a}udia and Vieira, Lu{\'{\i}}s 
                         Eduardo Antunes and Wang, Chi and Shi, Jiankui and Liu, Zhengkuan 
                         and Gonzalez Alarcon, Walter Dem{\'e}trio and Dal Lago, Alisson 
                         and Silva, Marlos Rockenbach da and P{\'a}dua, Marcelo Banik de 
                         and Alves, Maria Virg{\'{\i}}nia and Barbosa, Marcos 
                         Vin{\'{\i}}cius Grala and Fok, Mei-Ching Hannah and Baker, 
                         Daniel N. and Kletzing, Craig and Kanekal, Shrikanth G. and 
                         Georgiou, Marina",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {NASA 
                         Goddard Space Flight Center} 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 {The 
                         Aerospace Corporation} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and Space Science Laboratory, UCB and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and CSSAR, CAS and {NSSC/Chinese 
                         Academy of Sciences} and NSSC National Space Science Center, CAS 
                         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 {NASA Goddard Space Flight Center} and {University of 
                         Colorado} and {University of Iowa} and {NASA GSFC} and {University 
                         College London}",
                title = "Contribution of ULF Wave Activity to the Global Recovery of the 
                         Outer Radiation Belt During the Passage of a High\‐Speed 
                         Solar Wind Stream Observed in September 2014",
                 year = "2019",
         organization = "AGU Fall Meeting",
             abstract = "Energy coupling between the solar wind and the Earth's 
                         magnetosphere can affect the electron population in the outer 
                         radiation belt. However, the precise role of different internal 
                         and external mechanisms that leads to changes of the relativistic 
                         electron population is not entirely known. This paper describes 
                         how ultralow frequency (ULF) wave activity during the passage of 
                         Alfv{\'e}nic solar wind streams contributes to the global 
                         recovery of the relativistic electron population in the outer 
                         radiation belt. To investigate the contribution of the ULF waves, 
                         we searched the Van Allen Probes data for a period in which we can 
                         clearly distinguish the enhancement of electron fluxes from the 
                         background. We found that the global recovery that started on 22 
                         September 2014, which coincides with the corotating interaction 
                         region preceding a high\‐speed stream and the occurrence of 
                         persistent substorm activity, provides an excellent scenario to 
                         explore the contribution of ULF waves. To support our analyses, we 
                         employed ground\‐ and space\‐based observational 
                         data and global magnetohydrodynamic simulations and calculated the 
                         ULF wave radial diffusion coefficients employing an empirical 
                         model. Observations show a gradual increase of electron fluxes in 
                         the outer radiation belt and a concomitant enhancement of ULF 
                         activity that spreads from higher to lower L shells. 
                         Magnetohydrodynamic simulation results agree with observed ULF 
                         wave activity in the magnetotail, which leads to both fast and 
                         Alfv{\'e}n modes in the magnetospheric nightside sector. The 
                         observations agree with the empirical model and are confirmed by 
                         phase space density calculations for this global recovery 
                         period.",
  conference-location = "San Francisco, CA",
      conference-year = "09-13 dec.",
             language = "en",
        urlaccessdate = "21 jan. 2021"
}


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