@InProceedings{BeckerGuedesCanKlaChiSan:2019:GNInUs,
author = "Becker Guedes, F{\'a}bio and Candido, Cl{\'a}udia Maria Nicoli
and Klausner, V. and Chingarandi, F. S. and Santos, S. P. M.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universidade do Vale
do Para{\'{\i}}ba (UNIVAP)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)}",
title = "GNSS-Derived Indexes for Use in Ionospheric Situation Reports",
year = "2019",
organization = "IUGG General Assembly, 27.",
abstract = "Various economic and social benefits come from the use of Global
Navigation Satellite System (GNSS) for positioning determination,
but its true capabilities to do so strongly rely on our knowledge
about the ionosphere role in affecting the electromagnetic signal
coming from the satellite system in the specific moment of the
observation. One way to address this problem is to study the
development of the scintillation and the TEC (Total Electron
Content) daily variation using GNSS receivers. The seasonal
changes, the solar cycle dependence, the level of solar activity,
the conditions of the interplanetary medium, the local time, and
the presence of geomagnetic disturbances, must all be considered
to give an accessible way to characterize the ionospheric response
to space weather conditions. At low latitudes, the geographic
position of the station assumes great importance as the proximity
of the geomagnetic equator, with its recurrent ionospheric
scintillation, or the influence of the equatorial ionization
anomaly (EIA), with its large TEC gradients, could drastically
interfere in the ionospheric disturbances over electromagnetic
waves. In this work, we considered creating an analysis of GNSS
TEC and scintillation data in equatorial and low-latitude regions,
giving a straightforward ionospheric situation record, to possibly
be used by Space Weather Warning Centers or Air Traffic Control
Facilities. We propose using a multi-level scale index weighted by
the current Space Weather conditions to inform the ionospheric
scintillation and TEC conditions. Also, the viability of
percentual forecasting of the variation of these indexes, based on
the current situational report, is studied.",
conference-location = "Montr{\'e}al, Canada",
conference-year = "08-18 July",
urlaccessdate = "28 mar. 2024"
}