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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 ...
Estimativa e análise de índices de irregularidades da ionosfera utilizando dados GPS de redes ativas
(2013-09-19)
Observable GNSS (Global Navigation Satellite System) are affected by systematic errors due to free electrons present in the ionosphere. The error associated with the ionosphere depends on the Total Electron Content (TEC), ...
Estimativa e análise de índices de irregularidades da ionosfera utilizando dados GPS de redes ativas
(2013-09-19)
Observable GNSS (Global Navigation Satellite System) are affected by systematic errors due to free electrons present in the ionosphere. The error associated with the ionosphere depends on the Total Electron Content (TEC), ...
Possible ionospheric preconditioning by shear flow leading to equatorial spread F
(European Geosciences Union (EGU), 2005-10-14)
Vertical shear in the zonal plasma drift speed is apparent in incoherent and coherent scatter radar observations of the bottomside F region ionosphere made at Jicamarca from about 1600–2200 LT. The relative importance of ...
Statistical characteristics of low latitude ionospheric field-aligned irregularities obtained with the Piura VHF radar
(European Geosciences Union, 2002-03)
We present a summary of the statistical characteristics of echoes from ionospheric (E- and F-region) field- aligned irregularities obtained with the Piura VHF radar. This radar is located at ∼7.0° dip latitude, just outside ...
Programa científico para o monitoramento em tempo real ou pós-processado das irregularidades ionosféricas e cintilação dos sinais GNSS
(2016-01-01)
Brazil is one of the countries that suffer more the effects of the ionosphere, especially those from the Equatorial Ionization Anomaly, ionospheric irregularities and scintillation of GNSS (Global Navigation Satellite ...
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, ...
Comparison of zonal neutral winds with equatorial plasma bubble and plasma drift velocities
(American Geophysical Union, 2013-03-20)
A one-year dataset spanning March 2011-March 2012 of coincident observations of night time thermospheric zonal neutral winds, equatorial plasma bubble (EPB) velocities, and zonal plasma drifts are used to examine the ...
Simultaneous 6300 Å airglow and radar observations of ionospheric irregularities and dynamics at the geomagnetic equator
(European Geosciences Union (EGU), 2018-03-22)
In March 2014 an all-sky imager (ASI) was installed at the Jicamarca Radio Observatory (11.95°S, 76.87°W; 0.3°S MLAT). We present results of equatorial spread F (ESF) characteristics observed at Jicamarca and at low ...