The Earth’s ionosphere affects the propagation of signals from the Global Navigation Satellite Systems (GNSS). The part of the ionosphere above the F2-layer peak, known as the topside ionosphere, contains a major portion of the total electron content and is therefore crucial for both scientific and practical applications. One of the major challenges for modeling the topside ionosphere has been...
EUROMAP (Mikhailov and Perrone, Radio Science, 2014) is an an empirical forecasting model designed to predict foF2 over the European region. The system is based on local prediction models developed for individual European ionospheric stations, enabling continuous monitoring of foF2 across the entire continent.
The model is driven by geomagnetic and solar activity parameters, including the...
A regional three-dimensional (3D) ionospheric model developed by the INGV Upper Atmosphere Physics and Radiopropagation Unit, has been developed for real-time monitoring over the Italian territory. The model combines a climatological background with real-time data ingestion from multiple ionosondes to reconstruct high-fidelity electron density profiles. Based on the Advanced Ionospheric...
Understanding and preparing for space weather events is critical for our technology innovations that operate in the near-earth space environment and/or rely on trans-ionospheric and skywave signal propagation. Safety-critical radio-based applications include satellite-based positioning, navigation, and timing (PNT), HF radar, and non-terrestrial communications networks. For example, Global...
The University of Calgary operates a suite of ground-based instruments that together provide a uniquely integrated view of the high-latitude ionosphere during space weather events. Multi-spectral auroral imagers and meridian spectrographs spanning 59°–71° geomagnetic latitude deliver high-cadence optical diagnostics of particle precipitation across multiple emission lines [Gillies et al.,...
