human intervention in coastal landscapes Flashcards

1
Q

what is coastal managements main 2 aims

A

-to provide against, and mitigate the impacts of flooding
-to provide protection against, and mitigate the impacts of coastal erosion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

name 4 hard engineering strategies

A

-sea walls
-rock amour
-gabions
-revetments
-groynes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

are hard engineering strategies short or long term

A

long term

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

disadvantages of hard engineering

A

structures and be expensive to build and maintain
defence in one area can have serious consequences further down the coast
structures can be seen as eyesores

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

how many strategies does Heysham and Morecambe have

A

5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is in strategy 1 at Morecambe

A

rock armour to enhance and protect the existing sea wall boulders were locally sourced limestone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is in strategy 2 at Morecambe

A

10 breakwaters and rock groynes were built at intervals Infront of the town used just under a million tonnes of local limestone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is in strategy 5 at Morecambe

A

concrete revetment and sea wall to the west of Heysham Head extending to the power station were repaired

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what are Morecambe bays classifications

A

Site of special scientific interest
special area of conservation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

how was the strategies carbon footprint reduced in Morecambe

A

by using local quarries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

how many tonnes of sand were used in Morecambe for beach nourishment

A

89,000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what is soft engineering

A

uses the natural systems for coastal defence. it involves manipulating and maintaining these systems without changing there fundamental structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

name 3 types of soft engineering

A

-beach nourishment
-dune regeneration
-managed retreat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

how large is Seftons’ dune area and how fast is it eroding

A

17km large and being eroded at 4.5m/year

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

why does Formby attract visitors

A

beaches, sand dunes, pine forests, and local populations of rare red squirrels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

when was the Sefton coastal management scheme developed

A

1980s

17
Q

what id the sefton coastal management scheme include

A

planting old Christmas trees on the dunes to trap more sand and encourage dune regeneration.
build boardwalks to stop people trampling the dunes
fencing off areas of the sand dunes to restrict access