Methodologies

For the detection of Travelling Ionospheric disturbances, eight complementary methodologies are applied in the TechTIDE project with real-time and historical data from Digisonde DPS4D ionospheric sounders, from the Continuous Doppler Sounding System and from GNSS receivers.

• HF-TID method (Reinisch et al., 2017; Huang et al., 2016)
  
• CDSS-MSTID detection method (Lastovicka and Chum, 2017) 
• GNSS TEC gradient algorithms (Borries et al. 2017)
  
• Spatial and Temporal GNSS analysis (Hernández-Pajares et al., 2006)
• The AATR indicator (Sanz et al., 2014)
• HF Interferometry method (Altadill et al., 2017)
• HTI technique to monitor wave activity (Haldoupis et al., 2006)
• TaD 3D mapping of the electron density (Kutiev et al., 2016)