Infrasonic wind noise reduction via porous fabric domes

Often, porous hose arrays or complex pipe rosettes are used for wind noise reduction in long-term infrasound monitoring situations. Both of these wind noise reduction schemes perform well in reducing the wind-generated noise at an infrasound sensor, but each can significantly filter the information reaching the sensor. Ideally, a wind noise reduction scheme should have a flat frequency response and minimal attenuation over the desired frequency band. To that end, three fabrics, two porous and one non-porous, stretched in dome configurations have been investigated for wind noise reduction. The two porous fabric domes are found to perform comparably to a porous hose array but without its amplitude- and phase-altering properties.