@Article{JesusSGFABBGCSPL:2010:EfObIo,
author = "Jesus, R. de and Sahai, Y. and Guarnieri, F. L. and Fagundes, P.
R. and Abreu, Alessandro Jos{\'e} de and Becker-Guedes, F. and
Brunini, C. and Gende, M. and Cintra, T. M. F. and Souza, V. A. de
and Pillat, V. G. and Lima, W. L. C.",
affiliation = "{} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade do Vale do Paraiba (UNIVAP)} and {Universidade do
Vale do Paraiba (UNIVAP)} and {Universidade do Vale do Paraiba
(UNIVAP)} and {Instituto Nacional de Pesquisas Espaciais (INPE)}
and {Universidad Nacional de La Plata} and {Universidad Nacional
de La Plata} and {Universidade do Vale do Paraiba (UNIVAP)} and
{Universidade do Vale do Paraiba (UNIVAP)} and {Universidade do
Vale do Paraiba (UNIVAP)} and {Universidade Luterana do Brasil
(ULBRA)}",
title = "Effects observed in the ionospheric F-region in the South American
sector during the intense geomagnetic storm of 14 December 2006",
journal = "Advances in Space Research",
year = "2010",
volume = "IP51462546",
number = "7",
pages = "909--920",
keywords = "Space weather, Geomagnetic storm, Spread-F, Ionosphere.",
abstract = "This investigation presents observations related to the generation
of equatorial ionospheric irregularities (also known as equatorial
spread F (ESF)) including ionospheric plasma bubbles and dynamic
behavior of the ionospheric F-region in the South American sector
during an intense geomagnetic storm in December 2006 (a period of
low solar activity). In this work, ionospheric sounding
observations and GPS data obtained between 13 and 16 December 2006
at several stations in the South American sector are presented. On
the geomagnetically disturbed night of 14 and 15 December,
ionospheric plasma bubbles were observed after an unusual
uplifting of the F-region during pre-reversal enhancement (PRE)
period. The unusual uplifting of the F-region during PRE was
possibly associated with prompt penetration of electric field of
magnetospheric origin. During the geomagnetic disturbance night of
14 and 15 December, strong oscillations due to the propagation of
traveling ionospheric disturbances (TIDs) by the Joule heating in
the auroral region were observed in the F-region at S{\~a}o
Jos{\'e} dos Campos (SJC, 23.2°S, 45.9°W; dip latitude 17.6°S),
Brazil, and Port Stanley (PST, 51.6°S, 57.9°W; geom. latitude
41.6°S). The VTEC-GPS observations presented on the night of 14
and 15 December 2006 show both positive and negative storm phases
in the South American sector, possibly due to changes in the
large-scale wind circulation and changes in the O/N2 ratio in the
southern hemisphere, respectively.",
doi = "10.1016/j.asr.2010.04.031",
url = "http://dx.doi.org/10.1016/j.asr.2010.04.031",
issn = "0273-1177",
label = "self-archiving-INPE-MCTIC-GOV-BR",
language = "en",
targetfile = "effects observed.pdf",
urlaccessdate = "20 maio 2024"
}