ionosphere model and tomography
TRANSCRIPT
Ionosphere Modeling and Tomography
Cheng WangTongji University, Shanghai, ChinaMiami University, Oxford, Ohio, US
2013-02-01
• Learn temporal and spatial variation
• Improve the performance of GNSS
• Protect Satellites from bad space
environment
• Coupling effect of Earthquake
Incoherent Scatter Radar\Rocket Sounding\Topside Sounder\Ionosonde
Spatial and temporal resolution is limited.
Data: observation of 183 stations on 2012.05.15Model: 15degree 15order spheric harmonics functionSolution: model’s coefficient, satellites’ DCB, and receivers’ DCBParameters: 16*16*13+183+32=3543。Standard deviation of unit weight: 1.6TECU
Simulation: Hong Kong Local Ionosphere Tomography on 2009.05.04