@Article{SilvaSASSMMVAJAWLLDASBZK:2021:DyMeAs,
               author = "Silva, Ligia Alves da and Shi, Jiankui and Alves, Livia Ribeiro 
                         and Sibeck, David G. and Souza, Vitor Moura Cardoso e Silva and 
                         Marchezi, Jos{\'e} Paulo and Medeiros, Cl{\'a}udia and Vieira, 
                         Luis Eduardo Antunes and Agapitov, Oleksiy and Jauer, Paulo R. and 
                         Alves, M. E. S. and Wang, Chi and Li, H. and Liu, Z. and Dal Lago, 
                         Alisson and Alves, Maria Virginia and Silva, Marlos Rockenbach da 
                         and Baker, Daniel N. and Zhang, S. Y. and Kenekal, Shrikanth G.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Chinese 
                         Academy of Sciences} and {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 {University of California} and {Chinese 
                         Academy of Sciences} and {Universidade Estadual Paulista (UNESP)} 
                         and {Chinese Academy of Sciences} and {Chinese Academy of 
                         Sciences} and {Chinese Academy of Sciences} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Laboratory for Atmosphere and Space 
                         Physics} and {Chinese Academy of Sciences} and {NASA Goddard Space 
                         Flight Center}",
                title = "Dynamic Mechanisms Associated With High-Energy Electron Flux 
                         Dropout in the Earth's Outer Radiation Belt Under the Influence of 
                         a Coronal Mass Ejection Sheath Region",
              journal = "Journal of Geophysical Research: Space Physics",
                 year = "2021",
               volume = "126",
               number = "1",
                pages = "eJGRA56114",
                month = "Jan.",
             abstract = "The near-Earth interplanetary environment conditions affect the 
                         dynamics of the relativistic electron population quasitrapped in 
                         the radiation belts. A complex chain of processes observed in the 
                         magnetosphere can contribute to the variability of these 
                         populations when interplanetary structures, such as the 
                         interplanetary counterpart of a solar coronal mass ejection 
                         (ICME), and high-speed solar wind streams interact with the 
                         magnetosphere. However, as these processes can coexist, it is hard 
                         to untangle the relative contribution of each process to the loss 
                         of particles and the eventual repopulation. Here we show evidence 
                         that it is possible to distinguish the relative contribution of 
                         mechanisms related to the loss of the outer radiation belt 
                         electrons for an event observed on July 19 and 20, 2016. The 
                         interaction of an ICME's turbulent sheath with the Earth's 
                         magnetosphere resulted in a decrease in the outer radiation belt 
                         relativistic electron population. The ultralow frequency (ULF) and 
                         chorus wave activities are detected in the outer radiation belt 
                         during the time when the Earth's magnetosphere is under the 
                         influence of the ICME's sheath region, as well as the ICME's 
                         magnetic cloud region, while the electromagnetic ion cyclotron 
                         (EMIC) waves in the outer belt are observed only during the sheath 
                         region. Dynamic mechanisms such as magnetopause shadowing, outward 
                         radial diffusion driven by ULF waves, pitch-angle scattering 
                         driven by both EMIC and chorus waves are quantitatively analyzed. 
                         Our results suggest that the structures of the ICMEs can trigger 
                         the drivers to generate the different dynamic mechanisms 
                         responsible for the radiation belt population variability.",
                  doi = "10.1029/2020JA028492",
                  url = "http://dx.doi.org/10.1029/2020JA028492",
                 issn = "2169-9402",
             language = "en",
           targetfile = "silva_dynamic.pdf",
        urlaccessdate = "20 maio 2024"
}