TechTIDE Warning Services (under construction) – TechTIDE Project

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Summary of TechTIDE products and services provided from the TID detection methods

IdN. Method	Main Characteristics	Basic Product	Value added Product
HF-TID Detects perturbations in space from all possible sources (solar and lower atmosphere origin) ; suitable for the identification of MS and LS TIDs	Input: signal properties from Digisonde synchronized operation Output: TID velocity, amplitude, propagation direction at the signal reflection point between the stations	TID characteristics: {TID Period, Phase Velocity, Direction of propagation, Wavelength, and Amplitude}	Maps of the current TID activity Plots of TID characteristics
HF Interferometry Finds oscillation activity in ionospheric characteristics and it can detect LSTIDs	Input: ionospheric characteristics from VI and OI soundings Output: 2D TID vector velocity, amplitude and period	Dominant period, Amplitude and 2D Vector velocity of detected LSTID	Maps of TID velocities (Europe and Global) Plots of TID parameters per station
Spatial & Temporal GNSS Analysis – AATR indicator Detects perturbations in space from all possible sources (solar and lower atmosphere origin) ; suitable for the identification of MS and LS TIDs	Input: GNSS TEC from single receivers over a region Output: Fluctuations associated to the TIDs and estimation of the propagation parameters (direction, velocity and amplitude)	TID Velocity, Direction of propagation and Amplitude; The AATR index over specific locations	The MSTID occurrence over specific locations (daily plots). European maps of the AATR indicator
GNSS TEC Gradient Analyzes TEC maps and it is mostly sensitive to perturbations from LSTIDs	Input: Grids of TEC maps over a region Output: Latitude-time maps of TEC gradients and indication of significant gradients	TEC Gradients	Graphical presentation in an image
3D EDD Maps Analyzes maps of TEC and ionospheric characteristics and it is sensitive to perturbation from LSTIDs	Input: ionospheric characteristics at the hmF2 altitude and TEC maps Output: Analytical function of the electron density distribution with altitude from 90 km to 22000 km	Electron density profile over a single location. The detrended electron density over station.	Maps of the electron density. The height where the max perturbation in the electron density occurs
HTI Reconstructs daily plot of the vertical movement of the ionospheric layers; can capture oscillations detected in space from all possible sources	Input: raw vertical ionogram binary data from single station Output: Reconstructed daily variability of F region virtual height	Period of dominant wave activity	Relative contribution of detected LSTID to the total variance
CDSS-MSTID Analyzes Doppler shift of radio signals to detect quasi-periodic perturbations due to MSTIDs	Input: CDSS reflected signals, ionospheric characteristics and irregularities Output: Doppler shift, SNR and confidence level	Period, Amplitude and Phase of Doppler measurements	MSTIDs Characteristics

Functionalities available for TechTIDE users

Privileges/Services	Unregistered Users	Registered Users	Release plan
Public Web Site	✔	✔	09.2019
E-Newsletter		✔	09.2019
Discussion Forum	Read only	Active contribution	09.2019
Management of the user profile		✔	09.2019
Open Access Software Codes		✔	02.2019
TechTIDE Warning On-Line System (Real-Time and Archived products)	✔	✔	04.2019
TID Activity Report	✔	✔	10.2019
Email alert system		✔	10.2019

techtide.project@gmail.com