Modelling acoustic waves propagation at Stromboli
Giorgio Lacanna
Broschiertes Buch

Modelling acoustic waves propagation at Stromboli

Acoustic wave propagation

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On near-source conditions (5 km), atmosphere is often considered to be fully transparent to acoustic waves and to have a small effect on the acoustic wavefield. As a consequence, the propagation of the acoustic waves in the atmosphere near the source are often neglected and waveform is compensated only in amplitude by the inverse of the distance from the source. However, amplitude distribution at five infrasonic stations deployed around the active craters of Stromboli volcano, reveals anomalous decay up to -11 dB larger than expected, which can not be explained in terms of energy loss for geom...