What question did this study set out to answer?

This research aims to investigate how atmospheric conditions, specifically wind, affect infrasound propagation patterns from controlled explosions.

Observational Evidence for Wind‐Driven Low‐Pass Filtering of Infrasound at Short Range

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Observational evidence reveals how winds affect infrasound characteristics in a local environment, suggesting atmospheric influence on signals.

This research aims to investigate how atmospheric conditions, specifically wind, affect infrasound propagation patterns from controlled explosions.
Conducted two observational campaigns using controlled surface explosions equivalent to 10 tons of TNT.
Recorded infrasound data with a dense network of 31 single-sensor stations across a 23 km range.
Analyzed wavefields for differences in period and celerity depending on wind direction.
Observed two distinct wavefield behaviors in two months despite similar sources.
Found that downwind paths maintained short-period characteristics, while upwind paths had longer periods due to filtering effects.
Provided direct evidence that tropospheric winds can create azimuth-dependent alterations in low-frequency wave characteristics.

Silber et al. (2026) studied this question.

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Observational evidence reveals how winds affect infrasound characteristics in a local environment, suggesting atmospheric influence on signals.