@InProceedings{EssienTaFiWrBaGoLo:2019:StMeTr,
author = "Essien, Patrick and Takahashi, Hisao and Figueiredo, Cosme
Alexandre Oliveira Barros and Wrasse, Cristiano Max and Barros, C.
M. and Gobbi, Delano and Lomotey, S. O.",
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 {} and {} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "Study of medium-scale traveling ionospheric disturbances observed
in the South American equatorial and low latitude region",
year = "2019",
organization = "CEDAR",
abstract = "Total electron content (TEC) fluctuation in the ionosphere is one
of the main unresolved problems on navigation systems, related to
degrading resolution and reliability of the ground positioning.
The South American low/equatorial latitude ionospheric region is
where the highest spatial and temporal variations ofTEC and
various features of the ionosphere such as Medium-Scale Traveling
Ionospheric Disturbances (MST!Ds) among others can be found.
Therefore, the need to study the MSTIDs that propagate in the
regions is the main focus of the present work. Using data
collected by GNSS (GLONASS and GPS specifically) dual frequency
receivers network over the South American region, we developed
detrending TEC maps to recognize the presence and characterize
MST!Ds in terms of horizontal wavelength, period, phase velocity
and propagation direction. Preliminary results obtained from the
data in 2014 and 2015 are presented and discussed. We noted that
atmospheric gravity waves could be one of the prime precursors of
the MST!Ds observed.",
conference-location = "Santa Fe, New Mexico",
conference-year = "16-21 june",
language = "en",
urlaccessdate = "15 jun. 2024"
}