INCOMING AND OUTGOING WAVE INTERACTIONS ON BEACHES

V.S.N. Tatavarti, David A. Huntley, Anthony J. Bowen

Abstract


A technique to decompose colocated random field measurements of wave elevation and current velocity into incoming (shoreward propagating) and outgoing (seaward propagating) components is presented. This decomposition technique, which is less sensitive to noise, enables us to determine the frequency dependent reflection coefficients and also the relative phase between the incoming and outgoing waves. The method is applied to C2S2 and NSTS data sets, from beaches with wide ranging characteristics and wave regimes. The results demonstrate the selective nature of beach absorption/reflection characteristics but are inconclusive in terms of a proper parameterization of reflections on natural beaches

Keywords


wave interaction on beaches; incoming waves; outgoing waves

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