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AGU: Geophysical Research Letters

 

Index Terms

  • Oceanography: Physical: Surface waves and tides
  • Oceanography: Physical: Instruments and techniques
  • Oceanography: Physical: Internal and inertial waves
  • Atmospheric Composition and Structure: Instruments and techniques
  • Atmospheric Composition and Structure: Pressure, density, and temperature

Abstract

Observations of surf infrasound in Hawai‘i

M. Garcés

HIGP, SOEST, University of Hawai‘i at M$\overline{a}$noa, Hawai‘i, USA

C. Hetzer

HIGP, SOEST, University of Hawai‘i at M$\overline{a}$noa, Hawai‘i, USA

M. Merrifield

HIGP, SOEST, University of Hawai‘i at M$\overline{a}$noa, Hawai‘i, USA

M. Willis

HIGP, SOEST, University of Hawai‘i at M$\overline{a}$noa, Hawai‘i, USA

J. Aucan

HIGP, SOEST, University of Hawai‘i at M$\overline{a}$noa, Hawai‘i, USA

Comparison of ocean buoy measurements with infrasonic array data collected during the epic winter of 2002–2003 shows a clear relationship between breaking ocean wave height and infrasonic signal levels. In addition, infrasonic arrays allow the identification of distinct breaking zones along the shoreline. Our observations suggest that infrasonic measurements can be used in conjunction with buoys to estimate wave heights, identify regions of high wave action, and validate surface wave propagation models.

Received 12 September 2003; accepted 6 November 2003; published 20 December 2003.

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.

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