Holderness Coast Case study Flashcards

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1
Q

How much is the Holderness coast predicted to sink by (2050)

A

9cm by 2050

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2
Q

How much is western Scotland predicted to rise by (2050)

A

11cm by 2050

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3
Q

On average what does the whole coastline erode by year

A

2m/yr

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4
Q

When does erosion mainly occur on the holderness coast

A

In storm events

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5
Q

When was there a large erosion event and how much did the coast erode and where

A

1967 by Skipsea and eroded by 6m in one night

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6
Q

How many villages have been lost on coast since roman times

A

over 30

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7
Q

What type of rock is Flamborough head made out of

A

chalk and limestone - very hard rock, slow rates of erosion

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8
Q

What management is taking place at Bridlington

A

Hard engineering - Sea wall and groynes

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9
Q

What impact does the management of Bridlington have down the coast

A

restricts sediment supply causing further erosion down the coast

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10
Q

What erosion rate does mappleton face each year

A

2m/yr - road only 50m from coast at closest point

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11
Q

What did they do wrong with Spurn head

A

They fixed the spit in the wrong position which now makes it unable to retreat and vulnerable to flooding and breaches.

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12
Q

How could the collapse of spurn head mean

A

remove the protection of towns along river Humber

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13
Q

What direction of wind creates the most powerful waves (greatest fetch)

A

north east direction

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14
Q

When did the holderness coast experience a storm surge, and how many people killed

A

1953 - 300 people lost

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15
Q

On flambourough head what are verticle lines of cracks

A

joints

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16
Q

What are verticle lines of chalk displaced

A

faults

17
Q

What has a fault exploited on Flamborough’s head formed

A

Selwick’s bay

18
Q

How much has a the coastline betwwen bridlington bay to spurn head retreated since roman times

A

5km

19
Q

Where down the coastline does the Holderness coasts sediment help

A

King’s lyn

20
Q

How is the sediment transfered down the coastline

A

longshore-drift

21
Q

What does glacial deposits create lots of

A

mass-movements: especially slumpting/rotational slide (due to water

22
Q

What during storm events causes the mass movements

A

the clay reaching its liquid limit

23
Q

What year did a tidal surge hit spurn head

A

2013

24
Q

Why did the tidal surge have such an impact

A

Issue of lack of funding to Yorkshire Naturalists trusts - allowed defensive to fall into disrepair