Real-Time identification of Travelling Ionospheric Disturbances resulted from the TechTIDE project.

Travelling Ionospheric Disturbances (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.

Because of the variety of their characteristics regarding their velocity, propagation direction and amplitude, which are directly depended on their trigerring mechanisms, their identification and tracking is very complicated and has not been achieved in operational service mode.

The TechTIDE project, funded by the European Commission HORIZON 2020 Programme aims at delivering in real-time data, products and services capable of detecting the occurrence of TIDs over specific regions. The results will be validated in respect to the requirements of the users in order to finally design and test new viable TID impact mitigation strategies.

In this contribution we present results from the TID detection methodologies that are based on a multi-instrument approach, analyzing data from Digisondes, ground-based GNSS receivers and the Continuous Doppler Sounding System using complementary modeling techniques for Medium Scale and Large Scale TIDs. We demonstrate the current version of the TechTIDE warning system and we discuss the capabilities and challenges in developing a real time TID identification, warning and tracking system service.