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Unit 1 Topic 5

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Unit 1 Topic 5 Coastal Change and Conflict. On your A3 sheet: What key terms can you remember? – PowerPoint PPT presentation

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Title: Unit 1 Topic 5


1
Unit 1 Topic 5 Coastal Change and Conflict
  • On your A3 sheet What key terms can you remember?

2
Coasts foundation question
  • 1. Name the process that moves material along
    the coastline (1 Mark)
  • 2. Outline the the process of longshore drift.
    Use diagrams to help. (2 Marks)

What are the triggers in these questions?
Have a go!
3
  • 1. Longshore Drift
  • 2.

What did you get?
4
Coastal change and conflicts
  • Typical higher exam question (6Marks)
  • For a named location, explain the costs and
    benefits of using hard engineering techniques to
    protect a coastline from erosion.

Have a go! Plan your answer
What are the triggers in this question?
5

What did you get?
6
A answer?
  • In Christchurch Bay, groynes have been built and
    used to trap sediment. Although the groynes are
    expensive to build it has increased the size of
    the beach protecting the cliff. It has also
    encouraged residents/business owners to stay in
    the area people feel confident that erosion and
    flooding had been controlled. Groynes can look
    unattractive and will effect the natural
    processes. Some environmentalists feel that the
    groynes effect natural processes too much as well
    as being an ugly form of sea defence.
  • Or
  • In Blackpool a sea wall has been built. Although
    the wall was expensive to build it did encourage
    development of the seafront as businesses felt
    confident that erosion and flooding had been
    controlled. Due to the size of the sea wall,
    access to the beach can be difficult. Some
    Blackpool residents feel that the sea wall has
    become an ugly barrier keeping tourists away from
    one of the resorts main attractions.

7
Case Studies What are they?
8
  • Case studies
  • Concordant and Discordant Coastlines in
    Dorset/Swanage
  • Christchurch Bay Barton on Sea
  • Hurst Castle Spit?
  • Happisburgh?

9
More exam questions
  • Identify a coastal landform (usually a
    photo/sketch pointing to one!)
  • Identify two differences between constructive and
    destructive waves. 2 marks
  • Using named examples, explain the costs of two
    different methods of coastal management. 6
    marks
  • Name the method of hard engineering shown at A.
    1 marks
  • Name and describe one process of coastal erosion.
    2 marks
  • Explain how a spit is formed. You may draw a
    diagram(s) to help your answer. 6 marks
  • Suggest one reason why Flamborough Head is a
    popular destination for tourists. 1 mark
  • For two different types of sea defences,
    explain how they reduce erosion. 6 marks

10
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