Coastal Dunes

Dunes within the coastal upland, immediately landward of the active beach.

Glossary of Terms

Crest

Highest point on a beach face, breakwater, or seawall.

The zone of wave action extending from the water line (which varies with tide, surge, set-up, etc.) out to the most seaward point of the zone (breaker zone) at which waves approaching the coastline commence breaking, typically in water depths of between 5 to 10m.

Dynamic Equilibrium

A system in flux, but with influxes equal to outfluxes.

Port

A place where vessels may discharge or receive cargo; it may be the entire harbour including its approaches and anchorages, or only the commercial part of a harbour where the quays, wharves, facilities for transfer of cargo, docks, and repair shops are situated. Protection may be provided by natural or artificial features.

Survey, control

A survey that provides coordinates (horizontal or vertical) of points to which supplementary surveys are adjusted.

Mean Wave Height

The mean of all individual waves in an observation interval of approximately half an hour.

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Coastal Dunes