@Article{ResendeDePiMoBaFiSi:2019:DeNeIo,
author = "Resende, Laysa Cristina Araujo and Denardin, Clezio Marcos and
Pican{\c{c}}o, Giorgio Arlan da Silva and Moro, Juliano and
Barros, Diego and Figueiredo, Cosme Alexandre Oliveira Barros and
Silva, R{\'e}gia Pereira da",
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 {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "On developing a new ionospheric plasma index for the Brazilian
equatorial F region irregularities",
journal = "Annales Geophysicae Discussions",
year = "2019",
volume = "38",
number = "1",
pages = "1--20",
abstract = "F region vertical drifts (Vz) are the result of the interaction
between the ionospheric plasma with the zonal electric field and
the Earth's magnetic field. Abrupt variations in Vz are strongly
associated with the occurrence of plasma irregularities (spread-F)
during the nighttime periods. These irregularities are
manifestations of the space weather in the ionosphere environment
without necessarily require a solar burst. In this context, the
Brazilian Space Weather Study and Monitoring Program (Embrace) of
the National Institute for Space Research (INPE) has been
developing different indexes to analyze these ionospheric
irregularities in the Brazilian sector. Therefore, the main
purpose of this work is to produce a new ionospheric scale based
on the analysis of the ionospheric plasma drift velocity, named
AV. It is based in the maximum value of Vz (Vzp), which in turn is
calculated through its relationship with the virtual height
parameter, hF, measured by the Digisonde Portable Sounder (DPS4D)
installed in S{\~a}o Lu{\'{\i}}s (2°S, 44° O, dip: -2,3°). This
index quantifies the time relation between the Vz peak and the
irregularity observed in the ionogramas. Thus, in this study, we
analyzed 8 years of data, between 2009 and 2015, divided by season
in order to construct a standardized scale. The results show there
is a delay of at least 15 minutes between Vzp observation and the
irregularity occurrence. Finally, we believe that this proposed
index allow evaluating the impacts of ionospheric phenomena in the
Space Weather environment recently.",
doi = "10.5194/angeo-2019-42",
url = "http://dx.doi.org/10.5194/angeo-2019-42",
issn = "0992-7689",
label = "lattes: 3865836007446677 3 ResendeDePiMoBaFiSi:2019:DeNeIo",
language = "en",
targetfile = "angeo-2019-42.pdf",
url = "https://www.ann-geophys-discuss.net/angeo-2019-42/",
urlaccessdate = "19 abr. 2024"
}