1. Big Picture
Managed retreat
• What is it?
• Medmerry Worksheet
• Costs and benefits Managed retreat
allowing cliff erosion to occur as nature
taking its course: erosion in some areas,
deposition in others. Benefits include
less money spent and the creation of
natural environments. It may involve
setting back or realigning the shoreline
and allowing the sea to flood areas that
were previously protected by
embankments and seawalls.
Key Vocabulary
Page 110 - 111
20 June 2019
Managing Coasts - Managed Retreat
LO: To assess the costs and benefits of managed retreat.
2. You can describe costs and benefits of managed retreat.
You use a limited range of specialist terms
You have a reasonable accuracy in the use of spelling,
punctuation and grammar.
You can compare costs and benefits of managed retreat.
You use a good range of specialist terms
You have a considerable accuracy in spelling, punctuation and
grammar.
You assess costs and benefits of managed retreat.
You use a wide range of specialist terms where appropriate.
Accurate use of spelling, punctuation and grammar.
Learning Outcomes – Success Criteria
L3 - Detailed
Answer
L2 - Clear
Answer
L1 - Basic
Answer
Managing coasts - Managed Retreat
LO: To assess the costs and benefits of managed retreat.
3. • Relatively new type of strategy which has been tried in a few
locations, with some success.
• This involves putting deliberate breaches in sea defences, and
allowing salt marsh to build up naturally where there would
previously have been grazing land or farmland.
• This process is called managed retreat or coastal realignment.
Managed retreat (Coastal Re-alignment)
Managing Coasts - Managed Retreat
LO: To assess the costs and benefits of managed retreat.
4. Managing Coasts - Managed Retreat
LO: To assess the costs and benefits of managed retreat.
5. Managing Coasts - Managed Retreat
LO: To assess the costs and benefits of managed retreat.
Medmerry: Location
6. Managing Coasts - Managed Retreat
LO: To assess the costs and benefits of managed retreat.
Medmerry: What does it look like?
7. Managing Coasts - Managed Retreat
LO: To assess the costs and benefits of managed retreat.
Medmerry: Managed Retreat
Scheme
8. Managed ret reat at W allasea Island,Thames Est uary
Managing Coasts - Managed Retreat
LO: To assess the costs and benefits of managed retreat.
9. Managing Coasts - Managed Retreat
LO: To assess the costs and benefits of managed retreat.
10. Read the information sheet on the Managed Retreat Scheme at Medmerry, West
Sussex. Complete the task sections of the sheet. Don’t forget to check your
answers with the teacher and stick the sheet in your book.
Managing coasts - Managed retreat
LO: To assess the costs and benefits of managed retreat.
11. Discuss why a system of managed retreat may
not be a feasible option in some parts of the
coast. [6 marks]
Exam style question
Practice question
Page 111
Managing coasts - managed retreat
LO: To assess the costs and benefits of managed retreat.
12. Discuss
(using a case study)
Command Words
Bring forward the important points of or set out both sides
of an argument, for and against, and come to a conclusion.
There should be some evidence of balance, though not
necessarily of equal weighting. (Where use of a case study
is expected, then specifics from the case study should be
given to support the important points.) Present key points.
Making the Grade:
13. Discuss why a system of managed retreat may
not be a feasible option in some parts of the
coast. [6 marks]
Exam style question
Produced by Mr M Colclough
Practice question
Page 111
Managing coasts - managed retreat
LO: To assess the costs and benefits of managed retreat.
14. Produced by Mr M Colclough
Discuss why a system of managed retreat may not be a feasible
option in some parts of the coast. [6 marks]
Exam style question
• Command word ‘discuss’ indicates you will be expected to bring forward strengths and
weaknesses of the different sides of the argument.
• Both the physical and human geographical features of a potential site should be
considered.
• The value of the land is perhaps the biggest consideration. High-value agricultural land
which is fertile and high yielding and contributes to food production is unlikely to be
allowed to flood. Low-value grazing land would be considered a possible site.
• The topography of the land would have to be considered. Only low-lying land would allow
the sea to flood a large enough area.
• While managed retreat can produce important wildlife habitats, such as salt marsh, it
would not be feasible to flood an area which has a high or unique biodiversity or an
important ecosystem.
Managing coasts - managed retreat
LO: To assess the costs and benefits of managed retreat.
15. Produced by Mr M Colclough
Exam style question
Demonstrates limited knowledge of the strategy of managed retreat.
Shows limited understanding with random statements about the feasibility of using
managed retreat as a coastal management scheme. [1 – 2 marks]
Demonstrates clear knowledge of the strategy of managed retreat.
Shows a reasonable understanding of the feasibility of using managed retreat as a
coastal management scheme. [3 – 4 marks]
Demonstrates detailed and accurate knowledge of the strategy of managed retreat.
Shows a thorough understanding of the feasibility of using managed retreat as a coastal
management scheme. [5 – 6 marks]
L3 - Detailed
Answer
L2 - Clear
Answer
Discuss why a system of managed retreat
may not be a feasible option in some parts of
the coast. [6 marks]
L1 - Basic
Answer
Managing coasts - managed retreat
LO: To assess the costs and benefits of managed retreat.
