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Higher order ionospheric effects in GNSS positioning in the European region
(Copernicus Gesellschaft Mbh, 2011-01-01)
After removal of the Selective Availability in 2000, the ionosphere became the dominant error source for Global Navigation Satellite Systems (GNSS), especially for the high-accuracy (cm-mm) demanding applications like the ...
Brazilian active GNSS networks as systems for monitoring the ionosphere
(2017-07-01)
This research shows the viability of using Global Navigation Satellite System (GNSS) stations from Brazilian active networks in monitoring the ionosphere. Various indexes of ionospheric irregularities and scintillation of ...
Equatorial and low latitude ionospheric effects during sudden stratospheric warming events
(Instituto Geofísico del Perú, 2011-08-13)
The sources of ionospheric forcing are from above (solar and magnetospheric forces), internal (chemistry, local neutral dynamics), and from below (lower atmosphere). In this work we review the observed ion-neutral coupling ...
Ionospheric disturbances before and after the january 14, 2018 earthquake in Peru
(Academy of Sciences of the Czech Republic, 2019)
An earthquake of Mw 7.1 occurred on January 14, 2018 in the southern coast of Peru. In this study, public available Global Ionospheric Maps (GIMs) provided by the Center for Orbit Determination in Europe (CODE) were used ...
A case study for the IONEX CODE-database processing tool software: Ionospheric anomalies before the Mω 8.2 earthquake in Mexico on September 7, 2017
(Science and Information Organization, 2018)
A software tool was developed in the Imaging Processing Research laboratory (INTI-Lab) that automatically downloads several IONEX files around a specific user input date and also performs statistical calculations to look ...
Multistation digisonde observations of equatorial spread F in South America
(European Geosciences Union (EGU), 2004-09)
Directional ionogram and F-region drift observations were conducted at seven digisonde stations in South America during the COPEX campaign from October to December 2002. Five stations in Brazil, one in Argentina, and one ...
Relative effects of electric field and neutral wind on positive ionospheric storms
(SpringerOpen, 2009-05-14)
The paper studies the relative importance of penetrating eastward electric field (PEEF) and direct effects of equatorward neutral wind in leading to positive ionospheric storms at low-mid latitudes using observations and ...
RINEX_HO: second- and third-order ionospheric corrections for RINEX observation files
(Springer Heidelberg, 2011-07-01)
When GNSS receivers capable of collecting dual-frequency data are available, it is possible to eliminate the first-order ionospheric effect in the data processing through the ionosphere-free linear combination. However, ...
RINEX_HO: second- and third-order ionospheric corrections for RINEX observation files
(Springer Heidelberg, 2011-07-01)
When GNSS receivers capable of collecting dual-frequency data are available, it is possible to eliminate the first-order ionospheric effect in the data processing through the ionosphere-free linear combination. However, ...
Combined radar observations of equatorial electrojet irregularities at Jicamarca
(European Geosciences Union (EGU), 2007-03-08)
Daytime equatorial electrojet plasma irregularities were investigated using five distinct radar diagnostics at Jicamarca including range-time-intensity (RTI) mapping, Faraday rotation, radar imaging, oblique scattering, ...