Advance The Line- Hornsea Holderness CS COASTS Flashcards
1
Q
What is the Population density of Hornsea?
A
8,432
2
Q
What’s at risk at Hornsea?
A
- Beach is made of sand and shingle
- exposed boulder clay cliffs to the north give way to a seawall along the south.
3
Q
What management policy did they decide to use?
A
Advance the line
4
Q
What strategies did they use to protect the coast?
A
- Concrete sea wall
- Timber groynes
- ongoing refurbishment
- gabions
5
Q
What are the strengths?
A
Hard engineering provides effective protection from coastal erosion and the defence withstands stormy winters
6
Q
What are the weaknesses?
A
- where defences end erosion rates have rapidly increase
- down-drift beach is staved of material, trapped behind groynes
- unprotected soft bouder clay is rapidly eroding
- little beach material to the south of the defences so ow high tides reach base of the cliff
7
Q
What are the opportunities?
A
- groynes ensure a wide sandy beach which attracts thousands supporting businesses
- the wide sandy beach allows boat owners to launch, supporting the local fishing industry and leisure uses
8
Q
What are the threats?
A
- impact of erosion on south of coastal defences has led to conflit between owners of long beach leisure parks and the county council who are responsible fro managing coastal defences at hornsea.