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Characterization of Multi-yield Controlled Chemical Explosions Using Infrasound

Description: 

In May and October of 2024, two series of five chemical explosions were executed to investigate atmospheric infrasound propagation at distances up to 200 km. The shots varied in yield, with two pairs of 1-ton TNT-equivalent blasts and a single 10-ton detonation. Approximately 20 ground-based infrasound stations were strategically positioned to acquire records of the acoustic wavefield under varying environmental conditions (spring and fall). This configuration enabled high-fidelity measurements of signal parameters which are viewed as diagnostic markers for characterizing source yield. Here, we focus on determining how measured amplitudes and periods correlate with known yields, thus informing empirical relationships that are used for yield estimation. We are also interested in infrasound propagation effects as a function of season. We will discuss the results in the context of characterization of explosive events.

SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525.

Session: Advancements in Forensic Seismology and Explosion Monitoring [Poster]

Type: Poster

Date: 4/17/2025

Presentation Time: 08:00 AM (local time)

Presenting Author: Daniel

Student Presenter: No

Invited Presentation: 

Poster Number: 83

Authors