Flume experiments of sediment resuspension in wetland vegetation under wave-current conditions

Abstract

Understanding suspended sediment transport over salt marshes is key to understanding their resilience to adverse conditions (e.g. sea level rise). Salt marshes are vegetated coastal wetlands in the intertidal zone , which contribute to coastal protection . Their vegetation modifies flow patterns, dampens wave action, and triggersturbulent eddies in its wake. The turbulence resuspends fine particles, which are then transported over the marsh. Our interest lies in identifying the threshold for sediment resuspension under wave current conditions using laboratory experiments , i.e. finding the minimum current and wave velocities under which resuspension occurs. The threshold has previously been studied in conditions with only currents (Liu et al., 2021 and or waves (Tinoco & Coco, but not yet in combination. Identifying this threshold helps to understand when sedimen

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