Title :
Imaging the ionosphere over Southern Africa using GNSS signals: Applications in space weather
Author :
Opperman, B.D.L. ; Cilliers, P.J.
Author_Institution :
Hermanus Magn. Obs., Hermanus, South Africa
Abstract :
The ionospheric-induced error on dual-frequency GNSS navigation signals is exploited to quantify measurements of the ionosphere and create time-varying 2D ionospheric Total Electron Content (TEC) images over Southern Africa. TEC is a relevant space weather parameter and its application in space weather studies is demonstrated by investigating the ionospheric response to the November 2004 geomagnetic storm.
Keywords :
geophysical image processing; ionospheric disturbances; magnetic storms; AD 2004 11; Southern Africa; TEC images; Total Electron Content images; dual-frequency GNSS navigation signals; geomagnetic storm; ionospheric response; ionospheric-induced error; space weather parameter; Africa; Earth; Electrons; Geomagnetism; Global Positioning System; Ionosphere; Magnetosphere; Satellite broadcasting; Satellite navigation systems; Space technology; ionosphere; space weather; spherical harmonics; total electron content;
Conference_Titel :
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-3394-0
Electronic_ISBN :
978-1-4244-3395-7
DOI :
10.1109/IGARSS.2009.5418235
