Mapping and Survey of Plasma Bubbles over Brazilian Territory

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...

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Bibliographic Details
Published in:Journal of navigation 2007-01, Vol.60 (1), p.69-81
Main Authors: de Rezende, L. F. C., de Paula, E. R., Kantor, I. J., Kintner, P. M.
Format: Article
Language:English
Subjects:
Applied sciences
Bubbles
Equator
Exact sciences and technology
Global positioning systems
GPS
Ionospheric irregularities
Magnetic fields
Plasma bubbles
Radiolocalization and radionavigation
SBAS
Telecommunications
Telecommunications and information theory
Tropical environments
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Summary: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.
ISSN:0373-4633
1469-7785
DOI:10.1017/S0373463307004006