management of coastlines Flashcards

1
Q

what is hard engineering?

A

protecting the coast by directly altering the physical processes/systems

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2
Q

what is a groyne?

A

hard engineering- barrier built out into sea
✅ preventing movement of beach material along the coast
❌- unattractive and costly

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3
Q

what is a sea wall?

A

built on edge of coastlines usually out of concrete or steel
✅barrier to protect cliffs,lands, buildings from erosion
❌powerful waves erode wall over time, expensive

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4
Q

what is rock armour?

A

large boulders placed at foot of cliff
✅absorb wave energy & reduce erosion/ cheaper
❌expensive to transport & implement

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5
Q

what is soft engineering?

A

natural techniques that work with the physical systems and processes to protect coats

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6
Q

what is beach nourishment?

A

widening of the beach by adding sand and shingle
✅ increases distance wave has to travel reducing erosion/ blends in with existing beach
❌sediment has to be sourced and transported/ frequent maintenance

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7
Q

what is dune stabilisation?

A

creating and restoring sand dunes
✅dunes create barriers & absorb wave energy/provides flood protection

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8
Q

what is cliff regrading & drainage?

A

inserting pipes within a cliff to remove excess water
❌still open to wave erosion
✅prevents mass movement and clay build up

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9
Q

what are ICZM strategies?

A

techniques that provide sustainable management

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10
Q

what does ICZM do?

A

takes into regard all aspects of the coast in an attempt to achieve sustainability, creating winners and losers

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11
Q

what is the cost benefit analysis?

A

political judgement that determines whether a management scheme is work the money

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12
Q

what is an environmental impact assessment?

A

procedure used to determine whether a prop roses project is likely to have significant effect on the environment

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