Solar flare impact in the ionosphere and GPS positioning in the Brazilian region: a study case for the October, 28 2003 event

Authors

  • Marcelo Tomio Matsuoka Universidade Federal do Rio Grande do Sul
  • Paulo de Oliveira Camargo Universidade Estadual Paulista
  • Inez Staciarini Batista Instituto Nacional de Pesquisas Espaciais

DOI:

https://doi.org/10.5380/bcg.v12i2.7234

Keywords:

Posicionamento com GPS, Ionosfera, Explosão Solar, GPS Positioning, Ionosphere, Solar Flare, TEC

Abstract

The error due to the ionosphere in the GPS observables is directly proportonal to the Total Electron Content (TEC) in the ionospheric layer. The TEC varies regularly in time and space in relation to the sunspot number, the season, the local time, the geographic position, and others. However, the TEC can suffer abrupt
modifications in its behavior due to the occurrence of intense solar flares. During a solar flare event a fast increase of the solar electromagnetic radiation occurs, especially in the rays X and extreme ultraviolet wavelengths that can provoke a series of phenomena in the ionosphere that are generically called Sudden
Ionospheric Disturbances (SID). In this paper, GPS data from RBMC and IGS network were used, to analyze the influence of the intense solar flare, occurred on October 28, 2003 on the behavior of TEC and in the performance of the point positioning in the Brazilian region.

Downloads

How to Cite

Matsuoka, M. T., Camargo, P. de O., & Batista, I. S. (2006). Solar flare impact in the ionosphere and GPS positioning in the Brazilian region: a study case for the October, 28 2003 event. Bulletin of Geodetic Sciences, 12(2). https://doi.org/10.5380/bcg.v12i2.7234

Issue

Vol. 12 No. 2 (2006)

Section

Article

License

Submission of an original manuscript to the Journal will be taken to mean that it represents original work  not previously published, that is not being considered elsewhere for publication.

The BCG allows the author(s) to hold the copyright without restrictions  and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

The BCG also allows the authors  to retain publishing rights without restrictions.