Articles | Volume 35, issue 6
Ann. Geophys., 35, 1201–1218, 2017

Special issue: Space weather connections to near-Earth space and the...

Ann. Geophys., 35, 1201–1218, 2017
Regular paper
08 Nov 2017
Regular paper | 08 Nov 2017

Climatology and modeling of ionospheric scintillations and irregularity zonal drifts at the equatorial anomaly crest region

Marcio T. A. H. Muella et al.

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Climatology of the scintillation onset over southern Brazil
Jonas Sousasantos, Alison de Oliveira Moraes, José H. A. Sobral, Marcio T. A. H. Muella, Eurico R. de Paula, and Rafael S. Paolini
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In this study we analyzed ~ 17 years of GPS data from receivers installed in the observatory of Cachoeira Paulista, Brazil. We statistically analyzed the occurrence of GPS signal amplitude fluctuations caused by irregularities in the Earth's upper atmosphere. These signal fluctuations are known to provoke positional errors for GPS users. The results revealed that the secular variations in the Earth’s magnetic field are affecting the climatology of such GPS signal fluctuations.