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Displaying items 51-64

solar flares (1)
Space weather (1)
Spherical Elementary Current Systems (1)
Spherical elementary current systems (SECS) (1)
Statistic (1)
Sudden commencements (1)
Sudden Commencements (SCs) (1)
Sun: activity (1)
Sun: faculae, plages sunspots (1)
Sunspots, velocity (1)
The ionosphere is represented by a moving undulated mirror, to relate HF signal parameters to TID characteristics, using the FAS technique (1)
The performance is demonstrated during a period of moderate auroral activity and assessed in respect to prevailing geophysical conditions (1)
Travelling ionospheric disturbances (1)
volcanic eruption impact on the ionosphere (1)