Coastal Systems and Landscapes

Lối Thoát Hiểm

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  Thời Gian Còn Lại


Coastal Zones

Khớp văn bản (nhấp và kéo)   


Khớp văn bản

Onshore zone


Swash zone

Nearshore zone

Surf zone

Breaker zone

Offshore and subtidal zone

Nhấp và kéo

Broken waves travel towards shore. Sediment movement may be onshore/offshore/along coast.

Varies in width depending on type of wave.

Where cliff/land is.

Varies with tides. Waves up and down as swash and backwash.

Waves are modified and sediment movement occurs, e.g. deposition.

Sand dune, beach ridges, beaches or cliffs may or may not be present here. Only affected by waves under storm conditions.

Water depths greater than half the wave length of incoming wave. Limited sediment movement by waves. Tidal currents most effective.