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Comparison of GPS-TEC measurements with IRI2012-TEC predictions in the Brazilian sector during the unusual solar minimum 2009
(Editrice Compositori Bologna, 2017-01)
The total electron content (TEC) derived from two Global Positioning System (GPS) receivers localized at Palmas (PAL, 10.2°S, 48.2°W, dip latitude 5.5°S), near equatorial region, and São José dos Campos (SJC, 23.2°S, 45.9°W, ...
Análise da ionosfera usando dados de receptores GPS durante um período de alta atividade solar e comparação com dados de Digissondas
(Sociedade Brasileira de Geofísica, 2009-12-01)
Cada vez mais é crescente o uso do GPS (Global Positioning System ) em estudos da atmosfera terrestre. Neste artigo, a atmosfera superior da Terra, denominada ionosfera, foi estudada durante um período de alta atividade ...
Assessment of a TEC calibration procedure by single-frequency PPP
(2018-04-01)
Global navigation satellite system (GNSS) measurements have become an outstanding data source for ionospheric studies using total electron content (TEC) estimation procedures. Many methods for TEC estimation had been ...
Posicionamento por GPS na Região Brasileira Durante a Intensa Tempestade Geomagnética de 29 de Outubro de 2003GPS positioning in the Brazilian region during intense magnetic storm of the October, 29 2003
(Instituto de Geociências /Universidade Federal do Rio Grande do Sul, 2008)
Correcão ionosférica utilizando os MAPAS: Globais do TEC DO IGS: Avaliação no posicionamento por ponto na região brasileira
(2007-07-01)
One of the main drawbacks of the GPS accuracy for L1 users is the error due to ionosphere. This error depends on the total electron content presents in the ionosphere, as well as of the carrier frequency. Some models have ...
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, ...