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Mapping and Survey of Plasma Bubbles over Brazilian Territory

Published online by Cambridge University Press:  15 December 2006

L. F. C. de Rezende ,
E. R. de Paula ,
I. J. Kantor  and
P. M. Kintner
L. F. C. de Rezende
Affiliation:
(National Institute for Space Research, São José dos Campos, SP Brazil) (Email: luizfelipe@dae.inpe.br)
E. R. de Paula
Affiliation:
(National Institute for Space Research, São José dos Campos, SP Brazil) (Email: luizfelipe@dae.inpe.br)
I. J. Kantor
Affiliation:
(National Institute for Space Research, São José dos Campos, SP Brazil) (Email: luizfelipe@dae.inpe.br)
P. M. Kintner
Affiliation:
(Cornell University, Ithaca, NY, USA)
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Abstract

Ionospheric plasma irregularities or bubbles, that are regions with depleted density, are generated at the magnetic equator after sunset due to plasma instabilities, and as they move upward they map along the magnetic field lines to low latitudes. To analyse the temporal and spatial evolution of the bubbles over Brazilian territory, the mapping of ionospheric plasma bubbles for the night of 17/18 March 2002 was generated using data collected from one GPS receiver array, and applying interpolation techniques. The impact on the performance of Global Navigation Satellites System (GNSS) and on the Space Based Augmentation System (SBAS) in the tropical regions of the GPS signal losses of lock and of the signal amplitude fades during ionospheric irregularities is presented.

Keywords

SBASPlasma bubblesIonospheric irregularitiesGPS
Type
Research Article
Information
The Journal of Navigation , Volume 60 , Issue 1 , January 2007 , pp. 69 - 81
Copyright
© 2007 The Royal Institute of Navigation

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