@Article{JesusBaJoAbFaVeDe:2017:InIoDi,
author = "Jesus, Rodolfo de and Batista, Inez Staciarini and Jonah, Olusegun
Folarin 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 {Massachusetts
Institute of Technology} 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 = "An investigation of the ionospheric disturbances due to the 2014
sudden stratospheric warming events over brazilian sector",
journal = "Journal of Geophysical Research: Space Physics",
year = "2017",
volume = "122",
number = "11",
pages = "11698--11715",
month = "Nov.",
abstract = "The present study investigates the ionospheric F region response
in the Brazilian sector due to sudden stratospheric warming (SSW)
events of 2014. The data used for this work are obtained from GPS
receivers and magnetometer measurements during day of year (DOY)
01 to 120, 2014 at different stations in the equatorial and
low-latitude regions in the Brazilian sector. In addition, the
data obtained from Communication/Navigation Outage Forecasting
System satellites during DOY 01 to 75 of 2014 are used. The main
novelty of this research is that, during the 2014 SSW events,
daytime vertical total electron content (VTEC) shows a strong
increase on the order of about 23% and 11% over the equatorial and
low-latitude regions, respectively. We also observed that the
nighttime VTEC (SSW days) is increased by 8% and 33% over
equatorial and low-latitude regions, respectively. The
magnetometer measurements show a strong counterelectrojet during
the SSW days. The results show an amplification of the 0.5 day and
~216 day periods in the VTEC and equatorial electrojet during the
SSWs. The occurrences of ionospheric irregularities during the SSW
events are around 84% and 53% in the equatorial and low-latitude
regions, respectively, which is less frequent when compared with
those during the pre-SSW periods.",
doi = "10.1002/2017JA024560",
url = "http://dx.doi.org/10.1002/2017JA024560",
issn = "2169-9402",
language = "en",
targetfile = "jesus_investigation.pdf",
urlaccessdate = "27 abr. 2024"
}