Uprush Sediment transport in the swash zone

TL;DRAbstract

The swash zone is the region of the beach which is alternately covered and exposed by the runup and rundown of waves. The landward boundary of the region is defined by the maximum runup point and the seaward boundary by the maximum rundown or interaction point. This interaction point is the lowest position a receding wave will reach before it is forced landward by the following swash event. The landward motion of the swash is called uprush and the seaward motion is called backwash.Sediment transport in the swash zone is a very poorly understood area of coastal engineering however it has received much attention over the last decade. The behaviour of the flow in the uprush and backwash phases is affected by differerent, opposing forces and typically, transport rates in the uprush phase are far greater than in the backwash. As a result, total transport rate equations which do not consider the individual characteristics of each phase may not provide a complete picture of the complex nature

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