Sediment Cells

Question 1

What percentage of coastal sediment comes from THE SEA BED?

Answer 1

5%

Question 2

What percentage of coastal sediment comes from BEACHES?

Answer 2

5%

Question 3

What percentage of coastal sediment comes from CLIFF EROSION?

Answer 3

5%

Question 4

What percentage of coastal sediment comes from RIVER CHANNELS AND ESTUARIES?

Answer 4

85%

Question 5

What is a Sediment Cell?

Answer 5

Distinct areas of a coastline, separated from other areas by well defined boundaries like headlands/deep water.

Question 6

Definition of a Sediment Cell:

Answer 6

They are defined as a closed system that sediment particles are transported within.

• Very small particles are able to move between cells.
• Subdivided into 11 sub-cells across England and Wales.

Question 7

What is Dynamic Equilibrium?

Answer 7

The balanced state of a system when it’s inputs and outputs are equal. Sediment cells help the coastal environment achieve this.

Question 8

Negative feedback is…

Answer 8

Process of self regulation which restores equilibrium to a system.

Question 9

Positive Feedback…

Answer 9

Process by which an initial change in a system is amplified and causes further change.