In 1971, the US National Aeronautics and Space Administration (NASA) published a
seminal report—NASA SP-8072—which compiled the results of the early supersonic jet …

The record of seismic, hydroacoustic, and infrasonic waves is essential to detect, identify,
and localize sources of both natural and anthropogenic origin. To guarantee traceability and …

The acoustic ray tracing relations are extended by the inclusion of auxiliary parameters
describing variations in the spatial ray coordinates and eikonal vector due to changes in the …

Infrasound array processing is applied to monitor and characterize atmospheric explosions
in the context of the Comprehensive Nuclear‐Test‐Ban Treaty. Anyhow, for many infrasound …

Recent work in deploying infrasound (low‐frequency sound) sensors on aerostats and free‐
flying balloons has shown them to be viable alternatives to ground stations. However, no …

A hail-producing supercell on 11 May 2017 produced a small tornado near Perkins,
Oklahoma (35.97,− 97.04) at 2013 UTC. Two infrasound microphones with a 59-m …

Supersonic rockets generate low-frequency acoustic waves, that is, infrasound, during the
launch and re-entry. Infrasound is routinely observed at infrasound arrays from the …

Earthquakes have repeatedly been shown to produce inaudible acoustic signals (< 20 Hz),
otherwise known as infrasound. These signals can propagate hundreds to thousands of …

Persistent low-frequency (< 180 Hz) acoustic detection took place within the boundaries of
Oak Ridge National Laboratory to monitor full power operations of the High Flux Isotope …

The geometry of the Mach cone produced by a supersonic source is analyzed and mapped
into initial conditions used in acoustic ray tracing. The resulting source model is combined …