On the atmospheric-driven variability of impulse sounds

Abstract

Sound propagation is largely affected by the near-surface conditions (ground type, turbulence, and weather). The presentation reports on a joint research effort aimed at improving fundamental understanding of these propagation effects on impulsive sounds. Data collections will be presented, which consist of measuring transient acoustic signals at distance from a reproducible sound source, under a variety of acoustic-atmospheric conditions. Analysis of these data, supported by theoretical studies and numerical simulations, is conducted to reveal how the environmental conditions drive the observed variations of acoustic pulses. Challenges in measurements, simulations, and analysis will be discussed.