The coast as a natural system

Question 1

What does a systems approach help us to do?

Answer 1

A systems approach helps to explain variation and a change in the general pattern, predict natural processes, their consequences and the effect of human intervention.

Question 2

Is the coastal system open or closed?

Answer 2

The coastal system is open, meaning that there are inputs and outputs of energy and sediment.

Question 3

Define dynamic equilibrium

Answer 3

Dynamic equilibrium is a state of balance between outputs and inputs.

Question 4

What happens to the dynamic equilibrium if the inputs change?

Answer 4

If the inputs change (due to an external factor), the equilibrium will be disturbed, which will have an effect on processes, stores, and outputs.

Question 5

Name 4 coastal processes that affect the landscape features

Answer 5

4 coastal processes that effect landscape features are erosion, weathering, mass movement, and deposition.

Question 6

Define inputs in terms of the coastal system

Answer 6

Inputs are the introduction of sediment from land and offshore sea by wind, waves, tides and currents. (marine inputs)

Question 7

Define stores in terms of the coastal system.

Answer 7

Stores are repositories of sediment (e.g. beaches)

Question 8

Name some geological inputs to the coastal system

Answer 8

Some geological inputs to the coastal system are rock type, structure and tectonics.

Question 9

Name some atmospheric inputs to the coastal system

Answer 9

Some atmospheric inputs to the coastal system are climate and weather.

Question 10

Name some inputs from people to the coastal system

Answer 10

Inputs by people to the coastal system include urban planning, housing, leisure and coastal management.

Question 11

Name some marine inputs to the coastal system.

Answer 11

Marine inputs to the coastal system include wind, waves, tides and currents.