Posicionamento por GPS na Região Brasileira Durante a Intensa Tempestade Geomagnética de 29 de Outubro de 2003

Autores

  • MARCELO TOMIO MATSUOKA Instituto de Geociências.Universidade Federal do Rio Grande do Sul.
  • PAULO DE OLIVEIRA CAMARGO Universidade Estadual Paulista,
  • INEZ STACIA Instituto Nacional de Pesquisas Espaciais.

DOI:

https://doi.org/10.22456/1807-9806.17891

Palavras-chave:

Global Positioning System, TEC, Geomagnetic Storm

Resumo

The error due to the ionosphere in the GPS observables depends on 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 magnetic storm. On 28 October 2003, at 1110 UT, a major solar flare took place from a sunspot directly in line with the Earth. A coronal mass ejection was observed to leave the Sun in the direction of the Earth, causing an intense magnetic storm that started at 0611 UT of the following day. In this paper, GPS data from RBMC and IGS network and Digisonde data were used, to analyze the influence of the intense magnetic storm that occurred on October 29, 2003 in the behavior of TEC and in the performance of the point positioning in the Brazilian region

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Publicado

2008-07-01

Como Citar

MATSUOKA, M. T., CAMARGO, P. D. O., & STACIA, I. (2008). Posicionamento por GPS na Região Brasileira Durante a Intensa Tempestade Geomagnética de 29 de Outubro de 2003. Pesquisas Em Geociências, 35(1), 3–19. https://doi.org/10.22456/1807-9806.17891