A large scale infrasound array deployment in the American West

This presentation describes a recent field campaign in the American West by the National Center for Physical Acoustics at the University of Mississippi. The goal of the campaign was a large scale infrasound propagation study using detonations of US Navy's Trident missile rocket motor fuel at the Utah Testing and Training Range (UTTR) as sources. The deployment was made possible through the development in-house of low cost, broadband digital infrasound sensors. Twenty-five arrays were deployed in Utah, Idaho and Montana, consisting of approximately 125 sensors. The deployment consisted of twelve arrays along an arc at a fixed range of about 220 km from 300 to 360 degrees of azimuth and a northward line of twelve arrays from 250 to 400 km range. Four sensors were placed at UTTR in the source's near field. The new sensors, the field deployment and preliminary data analysis will be discussed.