Surf Infrasound at IS59

To better understand the surf signals recorded at IS59, a small aperture portable array was also deployed near the shoreline during a period of high surf during the winter of 2002-2003. Surf infrasound data from both of these arrays was compared to nearby ocean buoy measurements and showed a definite relationship between ocean wave height and infrasonic amplitudes. Further, surf infrasound seemed to be concentrated in the 1-5 Hz frequency band and infrasound arrays were able to accurately locate regions of high surf activity. More detailed results are available at: http://www.agu.org/pubs/crossref/2003.../2003GL018614.shtml

Citation: Garcés, M., C. Hetzer, M. Merrifield, M. Willis, and J. Aucan (2003), Observations of surf infrasound in Hawai‘i , Geophys. Res. Lett. , 30 (24), 2264, doi:10.1029/2003GL018614.