Terms in this set (18)
A form or linkage between one store/ component and another that involves movement of energy or mass.
energy from waves, wind, tides and sea currents; sediment; geology from coastline and sea level change.
Erosional landforms and landscapes
Dissipation of wave energy, accumulation of sediment above the tidal limit, sediment removed beyond local sediment cells.
provided by wind, waves, tides and currents
Where there is a balance between inputs and outputs.
How is equilibrium upset?
If the elements of the system changes, then the beach may change.
Where the effects of an action are multiplied by subsequent knock,on effects.
where the effects of an action is dampened by its subsequent knock,on effects.
Example of negative feedback
A beach is in dynamic equilibrium. Sediment is eroded from the beach during a storm and is deposited offshore forming an offshore bar; waves now forced to break before reaching the beach dissipating their energy thus reducing further erosion when they reach the beach; normal wave conditions return when storm calms and rework sediment from the offshore bar back to the beach. The beach returns to dynamic equilibrium.
Area between the high water mark and the landward limit of marine activity. Change takes place during storm activity.
The area lying between the high water mark and the low water mark.
Area beyond the point where waves cease to impact upon the seabed and in which activity is limited to deposition of sediment.
area beyond the point where waves cease to impact upon the seabed and in which activity is limited to deposition of sediments.
Area extending seaward from the high water mark to where waves begin to break.
Area where a turbulent layer of water washes up the beach following the breaking of a wave.
Area between the point where waves break and where the waves begin to move up the beach
Area where waves approaching the coastline begin to break, usually where the water depth is 5,10m.
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