@InProceedings{LimaPauAlmTakWra:2019:2dPlWa,
author = "Lima, L. Mota and Paulino, A. R. and Almeida, S. L. and Takahashi,
Hisao and Wrasse, Cristiano Max",
affiliation = "{Universidade Estadual da Para{\'{\i}}ba (UEPB)} and
{Universidade Estadual da Para{\'{\i}}ba (UEPB)} and
{Universidade Estadual da Para{\'{\i}}ba (UEPB)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "2-day Planetary Wave Signatures in GPS-TEC Data over Brazil",
year = "2019",
organization = "IUGG General Assembly, 27.",
abstract = "The presence of oscillations with periods of planetary waves in
the ionospheric parameters has been associated with
mesosphere-ionosphere coupling. Ionospheric GPS-TEC data
modulation by planetary oscillations with two-day wave period have
been investigated over Brazil, during January-February 2014.
Geomagnetic field measurements by magnetometers and winds from
meteor radar were used to identify planetary wave type variations
in the electric current system of the E and upper mesosphere
regions. The spectra shown energy for 2-day period in the TEC
residuals, relative scale coefficient obtained from geomagnetic
field and for meteor winds over 23° S, suggests a connection
between the MLT 2-day wave and the 2-day variability in the E and
F regions. The presence of the quasi 2-day oscillations in F
region cannot be explained by non-linear interactions involving
wave modes from below. Therefore, the presence of quasi 2-day
oscillation in the TEC parameter are interpreted as due direct
2-day wave propagation from MLT region, which modulate the winds
and electric field in E region which, in turn, is transmitted by
magnetic field lines into F region to modulate the vertical drift,
and thus print an oscillation with period of quasi 2-day in
electron density, that have been observed in TEC data.",
conference-location = "Montr{\'e}al, Canada",
conference-year = "08-18 July",
urlaccessdate = "25 set. 2024"
}