%0 Conference Proceedings
%4 sid.inpe.br/mtc-m21c/2018/04.16.13.25
%2 sid.inpe.br/mtc-m21c/2018/04.16.13.25.01
%T Behavior of the ULF mean power spectral density on the electron flux variation related to CME and HSS structures during the Van Allen Probes era
%D 2018
%A Marchezi, José Paulo,
%A Alves, Livia Ribeiro,
%A Silva, Ligia Alves da,
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@electronicmailaddress jose.marchezi@inpe.br
%@electronicmailaddress livia.alves@inpe.br
%@electronicmailaddress ligia.silva@inpe.br
%B Latin American Conference on Space Geophysics, 11 (COLAGE)
%C Buenos Aires, Argentina
%8 16-20 abr.
%X The ULF frequency range are know to play a significant role on the energy changes of the Van Allen´s outer radiation belt electron flux, violating the third adiabatic invariant, through a resonant interaction. The main mechanism involved is the radial diffusion, it is an stochastic process that take account the wave and the particle drift frequencies. There are some proposed models to explain the ULF-particle interaction deriving the radial diffusion coefficients. All the models consider the polarization modes of the ULF waves on the efficiency of the interaction. The contribution of the fluctuation of the magnetic and electric field are computed taking account the power spectrum density (PSD) of the signal. This work aims to estimate the behavior of the integrated ULF wave PSD amplitude, in the frequency range of the Pc3 and Pc5 geomagnetic pulsation on the magnetic field data recorded ground based stations from the Churchill line disposition of the Canadian Array for Realtime Investigations of Magnetic Activity (CARISMA) magnetometer network, for all the cases that have an increase on the 2.10 MeV electrons recorded by the Relativistic Electron Proton Telescope (REPT) instrument, on board of the Van Allen Probes, related to Coronal Mass Ejection (CME) and High Speed Streams (HSS) events, during the October 2012 to December 2016 period. This arrangement allows the verification of the PSD according to the radial distance in the magnetosphere, covering all the external radiation belt region.
%@language en