Abstract
Conventional deployment of infrasound sensors typically requires the sensors to be on the ground with extensive wind screens, e.g., porous hose or pipe arrays, in order to minimize wind induced noise on the sensor. Thus, flying an infrasound sensor on a balloon would seem ill-advised because of the inability to carry sufficient wind screens to mitigate the increased winds aloft. However, during an experiment designed to monitor short-range characteristics of low-frequency impulsive events, an infrasound sensor was placed aboard a tethered aerostat while the balloon flew to a maximum height of approximately 300 m. Comparisons between noise levels at the airborne sensor and at a nearby ground based sensor will be discussed. Noise levels aboard the aerostat are found to be similar to those on the ground.
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