@Article{BravoBatiSouzFopp:2019:IoReDi,
author = "Bravo, Manuel Alejandro and Batisa, Inez Staciarini and Souza,
Jonas Rodrigues de and Foppiano, A. J.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Universidad de Concepci{\'o}n
(UdeC)}",
title = "Ionospheric response to disturbed winds during the 29 October 2003
geomagnetic storm in the brazilian sector",
journal = "Journal of Geophysical Research: Space Physics",
year = "2019",
volume = "124",
number = "11",
pages = "9405--9419",
month = "Nov.",
abstract = "Modeling the ionosphere during disturbed periods is one of the
most challenging tasks due to the complexity of the phenomena that
affect the electric fields and the whole thermosphere environment.
It is well known that both, prompt penetration electric fields and
large amounts of energy deposited in the polar region during
disturbed periods, produce significant disturbances in the global
electron density distribution, in particular, in the equatorial
ionization anomaly development. Besides, the disturbance dynamo,
traveling atmospheric disturbances, and traveling ionospheric
disturbances also affect the equatorial ionization anomaly density
distribution. In this work we use the Sheffield University
Plasmasphere-Ionosphere Model at Instituto Nacional de Pesquisas
Espaciais, to simulate the drastic effects that were observed at
the low-latitude ionosphere in the Brazilian region during a very
intense magnetic storm event, the so-called 2003 Halloween storms.
In the absence of measured vertical drift during the storm, a new
vertical drift deduced from the interplanetary electric field
combined with the time variation of the F region virtual height is
used as input. The simulation results showed that, in the case of
the disturbed thermospheric wind, the ionospheric observations are
better explained when a novel traveling wave-like disturbance
propagating from north to south, at a velocity equal to 300 m/s,
is considered.",
doi = "10.1029/2019JA027187",
url = "http://dx.doi.org/10.1029/2019JA027187",
issn = "2169-9402",
language = "en",
targetfile = "bravo_ionospheric.pdf",
urlaccessdate = "24 abr. 2024"
}