Travelling Ionospheric Disturbances (TIDs) are plasma density fluctuations that propagate as waves through the ionosphere at a wide range of velocities and frequencies. TIDs constitute a threat for operational systems using predictable ionospheric characteristics as they can impose significant disturbances in the ambient electron density and Doppler frequency shifts on HF signals. TIDs can have multiple effects in the operation of aerospatial and ground-based infrastructures and especially in the European Geostationary Navigation Overlay Service (EGNOS) and Network Real-Time Kinematic (N-RTK) services, in High Frequency (HF) communications, in radio reconnaissance operations and in Very High Frequency – Ultra High Frequency (VHF-UHF) radiowave propagation.

  • Funding Agency/companyEuropean Commission (EC) Horizon 2020 programme.
  • ResponsibleNational Observatory of Athens
  • CoordinatorAnna Belehaki (NOA)
    • Partners: Deutsches Zentrum für Luft-und Raumfahrt (DLR), Ustav Fyziky Atmosfery AV CR (IAP), Institut Royal Meteorolgique de Belgique (RMI), Observatorio del Ebro Fundacion (OE), Borealis Global Designs Ltd. (BGD), Leibniz Institute of Atmospheric Physics, Rostock University (L-IAP), Universitat Politecnica de Catalunya (UPC), European satellite Services Provider (ESSP), South Africa National Space Agency (SANSA), Watermann Juergen Friedrich Wilhelm (JFWCONSULT), Frederick University (FU), German Federal Police (GFP).
    • Responsible gAGE/UPC: J.M. Juan Zornoza
  • Year/s of execution: 2017-2020
  • Duration: 30 months

Ref.: BELS [CTT: E-01418] JMJ 1586/194K

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