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Physical structure

Morphology:  The year 4 and 5 monitoring shows that the beach continues to be relatively stable and is presently losing little sediment from the profile, although sediment regularly moves on the upper foreshore creating different profile forms and grain-size zonation.  The combination of tidal elevation and energetic wave conditions determine the zones on the beach most impacted by natural sediment transport on the beach.  The peak vulnerability to transport conditions is during periods of extreme high tidal elevation combined with storm conditions.  These conditions early in the winter can result in major reorganization of the beach sediments, and will likely become more frequent as sea-level rises.

Sediment:  Digital grain-size analysis has been found to be a useful and efficient tool for monitoring the grain size on the upper foreshore of the pocket beach.  A continued increase in the fining of the surface sediment on the upper foreshore of the pocket beach is evident.  The larger material that comprised the former surface sediment seems to be moving downslope to the lower foreshore on the south side of the beach, and former surface material that is lost through anthropogenic means is unlikely to return to the upper foreshore.