COASTAL SYSTEMS

All in Chapter One1. The two main processes that form coastal landform are: (a)

….. , which is… (b) ….. , which is…

2. The two kinds of water movements are (a) ……………. : ..............................(b) ……………. : ..............................

3. The two kinds of waves are:(a) ……………. : ..............................(b) ……………. : ..............................

4. The movement of materials along the beach is called5. The coastlines built by depositions are:

a. Beaches: d. Sand dunes: b. Spits: c. Tombolo:

The two main processes forming costs

• Erosion: a process when earth’s surface is taken by agents, such as wind and water.

• Deposition: a process when sands & other materials are laid down

The two kinds of wavesConstructive wave:

Small energy of wave carrying materials to the beach

Destructive wave:Large waves taking material in the

backwash

LONGSHORE DRIFT

LET’S WATCH THE COASTLINES FORMED BY EROSION

COASTLINES BUILT BY DEPOSIION

BEACHESFormed by materials brought in the swash

COASTLINES BUILT BY DEPOSIION

SPITSExtension of coastline caused by longshore drift in one direction

COASTLINES BUILT BY DEPOSIION

Sand DunesA ridge of dry sand blown

by the wind to settle

DOES THE COAST CAUSE THE FLOOD?

PANTAI INDAH KAPUK

HUTAN BAKAU

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