@InProceedings{SilvaASJMDVDMRPS:2018:RaDiDr,
author = "Silva, Ligia Alves da and Alves, Livia Ribeiro and Souza, V. M.
and Jauer, Paulo Ricardo and Marchezi, Jos{\'e} Paulo and Dal
Lago, Alisson and Vieira, Lu{\'{\i}}s Eduardo Antunes and Da
Silva, G. B. and Medeiros, C. 1 and Rockenbach da Silva, Marlos
and P{\'a}dua, Marcelo Banik de and Sibeck, D.",
affiliation = "{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 {} and {} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)}",
title = "Radial diffusion driven by ULF waves during rapid dropout in the
outer radiation belt after Coronal Mass Ejection",
year = "2018",
organization = "Latin American Conference on Space Geophysics, 11. (COLAGE)",
abstract = "Rapid decrease of high-energy electron flux in the outer radiation
belt is observed after of the Coronal Mass Ejection (CME) reach
the Earths magnetosphere on July 19, 2016. The solar wind
parameters confirm the strong perturbation on the interplanetary
medium, which was followed by excitation of waves over a wide
range of frequencies. The Ultra Low Frequency (ULF) waves activity
was detected on the ground (CARISMA magnetometer network) and on
the magnetosphere (Van Allen Probes fluxgate magnetometers). The
Power Spectral Density (PSD) associated with ULF waves was
calculated from both ground and in situ instruments during the
event. Results show that the ULF waves activity was strong at the
beginning of July 20. The efficiency of the ULF wave-particle
interaction in the radial diffusion is investigated by means of
DLL calculation through the rapid dropout. The CARISMA Network
magnetometer spread from L 7 to L 4 in a roughly constant magnetic
local time meridian, in such a way that we verify the efficiency
of ULF waves-particle interaction as a function of L-shell,
besides the geomagnetic activity. Thereby, we investigate the role
of ULF radial diffusion to different L* using an empirical model.
According to the satellite measurements, compressional and
poloidal polarization modes are preferential during this dropout,
which may contribute significantly with the loss of particles to
outer magnetosphere.",
conference-location = "Buenos Aires, Argentina",
conference-year = "16-20 abr.",
language = "en",
urlaccessdate = "04 maio 2024"
}