@InProceedings{AlvesSSJVSSD:2015:OuRaBe,
author = "Alves, Livia Ribeiro and Silva, L{\'{\i}}gia Alves da and Souza,
Vitor Moura Cardoso e Silva and Jauer, Paulo Ricardo and Vieira,
Luis Eduardo Antunes and Silveira, Marcos Vin{\'{\i}}cius Dias
and Silva, Marlos Rockenbach da and Dal Lago, Alisson",
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 {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "Outer radiation belt dropout on September 12, 2014",
year = "2015",
organization = "International Congress of the Brazilian Geophysical Society, 14.",
abstract = "Solar wind variations and magnetospheric processes result in a
dynamic electron population within the outer Van Allen radiation
belt, where electron energies range from several 10s to several
1000s KeV. Geomagnetic storms and various solar wind-magnetosphere
interaction processes including convection cause either dramatic
particle flux increase or decreases. Here we analyze the
occurrence of a drop out of ~ 0.04 4.5 MeV electron fluxes
measured by NASA's Van Allen Probes, during a magnetic
cloud-driven geomagnetic storm which started at September 12,
2014. The ~3-day storm left a steady low flux of outer belt
energetic electrons that lasted for twelve days. At higher energy
levels, electron fluxes decreased by ~1 orders of magnitude
throughout the vast region from L* ~3 to 6.6. To describe the
physical mechanism associated to the loss observed at L* higher
than 4, it was simulated electron trajectory using TS95 and
self-consistent BATS-RUS models of magnetic field during the
shock, the results are consistent with the magnetopause
shadowing.",
conference-location = "Rio de Janeiro, RJ",
conference-year = "3-6 Aug.",
urlaccessdate = "21 maio 2024"
}