Using Infrasound to Detect Avalanches and Inform Forecasts in Alaska
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Jump to search filtersNoise Reduction Capability of the Trampoline Fabric Wind Dome
Low frequency sound below 20 Hz, also known as infrasound, is generated by both natural and anthropogenic sources. Local surface winds also generate signals within this frequency band and can dominate signals. Effectively monitoring sources of interest requires filtering out the influence of wind. Recently, the National Center for Physical Acoustics developed a 1 m fabric dome made from trampoline material that can serve as a wind filter for temporary field deployments. We assess the performance of this new dome by quantifying its overall noise reduction and show that it is an acceptable wind filter for temporary infrasound field deployments.
Evaluation of Ground Coupling Tests of a Fiber-Optic Cable at the Sandia Facility for Acceptance, Calibration, and Testing for Distributed Acoustic Sensing
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