@Article{JesusBaAbFaVeDe:2017:ObEfEq,
author = "Jesus, Rodolfo de and Batista, Inez Staciarini and Abreu, A. J. de
and Fagundes, P. R. and Venkatesh, K. and Denardini, Clezio
Marcos",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and {Universidade do
Vale do Para{\'{\i}}ba (UNIVAP)} and {Universidade do Vale do
Para{\'{\i}}ba (UNIVAP)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)}",
title = "Observed effects in the equatorial and low-latitude ionosphere in
the South American and African sectors during the 2012 minor
sudden stratospheric warming",
journal = "Journal of Atmospheric and Solar-Terrestrial Physics",
year = "2017",
volume = "157/158",
pages = "78--89",
month = "May",
keywords = "Equatorial ionospheric irregularities, Ionosphere, Sudden
stratospheric warming.",
abstract = "In this paper, the effects of a minor sudden stratospheric warming
(SSW) event of 2012 in the ionosphere over South American and
African sectors have been studied using C/NOFS satellite data and
GPS observations. Also, the magnetometer measurements obtained at
two stations in the equatorial and low-latitude regions in the
South American sector are presented. There were significant
Vertical Total Electron Content (VTEC) depletions in the afternoon
in both South American and African sectors during the 2012 minor
SSW event. A novel feature of the present study is the reduction
of the quasi 16-day oscillation (periods ranging from 11 to 20
days) in the daily averaged VTEC in the Brazilian and African
sector during an SSW event. Also, the results for the Brazilian
sector show an amplification of the ~26 day period in the daily
averaged VTEC at equatorial and low-latitude regions, after the
SSW temperature peak. This investigation shows that a minor SSW
can affect the irregularities at ionospheric heights in the
Brazilian and African sectors. Ground-based magnetometer
measurements in the American sector shows strongly enhanced
equatorial electrojet (EEJ) after the SSW temperature peak.",
doi = "10.1016/j.jastp.2017.04.003",
url = "http://dx.doi.org/10.1016/j.jastp.2017.04.003",
issn = "1364-6826",
language = "en",
targetfile = "jesus_observed.pdf",
urlaccessdate = "27 abr. 2024"
}