Managing coastal recession and flood risk Flashcards Preview

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Flashcards in Managing coastal recession and flood risk Deck (12)
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1
Q

Hard engineering

A

involves encasing the coastline in stone and steel. Aims to directly stop processes or alter them to protect the coast

2
Q

Hard engineering methods

A
  • rock armour
  • groynes
  • sea wall
  • rock breakwater
  • revetments
3
Q

Advantages of hard engineering

A
  • people know something is being done

- can be a one off that protects coastline for years

4
Q

Disadvantages of hard engineering

A
  • costs are high
  • prone to failure
  • visually unattractive
  • have adverse effects in other places
5
Q

Soft engineering

A

works with natural physical systems and processes to reduce the coastal erosion and flood threat

6
Q

advantages of soft engineering

A

less obvious
less intrusive
cheap

7
Q

Disadvantages soft engineering

A

not suitable for all coasts

8
Q

soft engineering methods

A
  • beach nourishment
  • cliff regrading and drainage
  • dune stabilisation
9
Q

Sustainable coastal management

A

Managing the wider coastal zone in terms of people and their economic livelihood, social and cultural wellbeing, safety from coastal hazards, as well as minimising environmental and ecological impacts

10
Q

aspects of sustainable coastal management

A
  • monitoring coastal change and adapting to unexpected trends
  • educating communities to understand why change is needed and how to adapt
  • adapting to sea level rise by relocating, alternative building methods and water supplies
  • creating alternative livelihoods to those lost to the sea
  • managing flood and erosion risk or relocating to safe areas
  • managing natural resources to ensure long term productivity
11
Q

Why does sustainable coastal management cause conflict?

A
  • coastal natural resources may have to be used less to protect them, people lose income
  • relocation may be needed
  • some erosion and flooding will always occur, not everything can be protected against
  • future trends such as sea level rise is uncertain and future plans may need to change
12
Q

Case study sustainable management

A

The Maldives