A series of field experiments were conducted to investigate sediment re-suspension and cross-shore cycling in nearshore environments with special emphasis on different frequency components (wind waves, swell, infra-gravity waves etc.). Measurements included simultaneous records of surface elevation, cross-shore current velocities, and suspended sediment concentrations both inside and outside of the breaker zone. Measurement locations were selected to cover a range of hydrodynamic and sedimentological conditions. The results indicated that wave groups appeared to be more capable of re-suspending sediments than incident waves. Results of co-spectral analysis indicated that the direction of cross-shore (suspended) sediment flux on the frequency domain was different for each location under different conditions. This leads to the hypothesis that there are additional factors such as the local wave climate, grain size, beach slope, bed forms, etc., governing the pattern of cross-shore suspended sediment transport flux in the frequency domain.
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