Experiments were conducted to observe infrasound induced plasma displacements and variations in HF radio propagation and absorption in the ionosphere after rocket launches. Variations in HF echo arrival angle and received power are observed and are consistent with the periods of PC1 pulsations. Plasma displacements consistent with the periods of PC3 pulsations were observed and associated with rocket induced infrasonic waves. These observations help develop our understanding of how infrasonic waves that originate near the ground, exchange energy with the geomagnetic field at high altitudes and how the geomagnetic field responds to them.
Ionosonde, VIPIR, infrasonic wave, HAAW, ionosphere, thermosphere, geomagnetism, geomagnetic pulsation, acoustic wave, earthquake, atmospheric wave
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