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análise dos efeitos ionosféricos de ordem superior no ciclo solar 24 e influência no posicionamento GNSS absoluto
(Universidade Federal do Paraná, 2014-12-01)
The application of the ionosphere free combination for GNSS dual frequency data allows mathematically the elimination of the first order ionosphere effects. However, the higher order ionosphere effects are not eliminated ...
Abnormal evening vertical plasma drift and effects on ESF and EIA over Brazil-South Atlantic sector during the 30 October 2003 superstorm
(2008-07-01)
Equatorial F region vertical plasma drifts, spread F and anomaly responses, in the south American longitude sector during the superstorm of 30 October 2003, are analyzed using data from an array of instruments consisting ...
Behavior of the equivalent slab thickness over three European stations
(Elsevier, 2013-02)
The total electron content (TEC) derived from the global positioning system (GPS) and the F2-layer peak electron density obtained from Digisonde data have been used to study the diurnal, seasonal and solar activity ...