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Geography > Theme B Part 2 > Flashcards

Theme B Part 2 Flashcards

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1
Q

What are Coastal Defences?

A

Are the ways of trying to stop the sea from eroding the land

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2
Q

Examples of Hard Engineering Coastal Management Strategies

A

Sea walls
Groynes
Gabions
Rock Armour

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3
Q

Define sea wall

A

concrete wall at the back of the beach

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4
Q

Advantages of Sea Walls In Newcastle

A

New Sea wall built in 2006
They are designed to reflect the waves energy back into the sea and stop erosion

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5
Q

Disadvantages of Sea Wall in Newcastle

A

Very Expensive to build(4 Million)

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6
Q

Sustainability of Sea Walls in Newcastle

A

Economically Unsustainable

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7
Q

Define Groynes

A

Long fences, made of heavy wood stretching out from the beach to the sea, desinged to stop longshore drift

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8
Q

Advantages of Groynes in Newcastle
Give Facts and Figures

A

Built in 1980
Stop long shore drift
Relative Cheap (5000 per metre)

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9
Q

Disadvantages of Groynes in Newcastle
Give Facts and Figures

A

now decayed
Expensive to replace

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10
Q

Sustainability of Groynes

A

Environmentally sustainable
Socially Sustainable
Economically Unsustainable

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11
Q

Define Gabions

A

Wire Boxes Filled with stone, often put at bottom of cliffs

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12
Q

Advantages of Gabions in Newcastle
Give Facts and Figures

A

Found at mouth of River Shimma
Cheap and easy to build and stop from eroding the cliff

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13
Q

Disadvantages of Gabions

A

Rusty and easily damaged

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14
Q

Sustainability of Gabions

A

Economically long term unsustainable
environmentally sustainable

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15
Q

Define Rock Armour

A

large boulders in front of a cliff or sea wall to absorb the energy of waves.

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16
Q

Advantages of Rock Armour In Newcastle

A

used to protect Royal Country Down Course
Cheaper than sea wall effectively stops wave energy

17
Q

Disadvantages of Rock Armour in Newcastle

A

traps sediment , reduces supply for Murlough which is an Area of Special Scientific Interest

18
Q

Sustainability of Rock Armour in Newcastle

A

Environmentally Unsustainable as reduces supply for Murlough(ASSI)

Geography (10 decks)

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