AQA A-Level Geography 7037
Water and Carbon Cycles
Hot Desert Systems and LandscapesLandscape
Coastal Systems and LandscapesLandscape
Glacial Systems and LandscapesLandscape
HazardsHazards or ecosystems
Ecosystems Under StressHazards or ecosystems
Global Systems and Global Governance
Changing Places
Contemporary Urban EnvironmentsHuman option
Population and the EnvironmentHuman option
Resource SecurityHuman option
Coastal Systems and Landscapes
Hard Engineering at the Coast
- 3 things to know
- Component 1
Overview
Recall questions on what coastal intervention seeks to control and on the structure and function of sea walls and groynes.
What you need to know
Answer each one before you reveal it.
Describe the structure and function of sea walls.
What are gabions and how do they reduce erosion?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What does human intervention in coastal landscapes aim to control or influence?
Model answer
Natural coastal processes such as erosion, flooding, and sediment transport.
- 2
Define hard engineering in the context of coastal management.
Model answer
The construction of artificial structures to protect against flooding and erosion.
- 3
Describe the structure and function of sea walls.
Model answer
Vertical or curved concrete structures that reflect wave energy and prevent erosion of the land behind them.
- 4
How do groynes protect coastlines?
Model answer
They are wooden or rock barriers built perpendicular to the shoreline that trap sediment moving along the coast by longshore drift, widening the beach.
- 5
What is rock armour (riprap) and how does it work?
Model answer
Large boulders placed at the base of cliffs or along shorelines that absorb and dissipate wave energy.
- 6
What are gabions and how do they reduce erosion?
Model answer
Wire cages filled with rocks placed along coastlines that absorb wave energy and reduce erosion.
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