High Energy coastline CS Flashcards

1
Q

What is the name of the high energy coastline?

A

Saltburn to Flamborough Head, Yorkshire

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2
Q

Describe 5 Features of Saltburn to Flamborough Head, Yorkshire

A

Prevailing Wind: from the SW

Direction of dominant waves: from the N / NE

Direction of longshore drift: from North to South

Length of fetch: 1500km across the North Sea

Wave height: average 4m

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3
Q

What sediment cell is Saltburn to Flamborough Head apart of?

A

Sediment cell: 1d

apart of sediment cell 1 from St Abbs Head to Flamborough Head – approx. 60km

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4
Q

What is the geology of Saltburn to Flamborough Head

A

Mainly chalk

varied rock resistances explaining the varied landscape

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5
Q

how are new arches, stacks, geos and blowholes formed?

A

High energy environment results in strong erosional processes

Happens over many years as rock gets weakened

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6
Q

What are examples of Blowholes along the high energy coastline?

A

Selwick bay

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7
Q

How are bays effected by the high energy coastline?

A

destructive waves cause material to be removed and erosion of cliffs take place by marine processes

Can have significant material removed within hours

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8
Q

How are bays effected by the high energy coastline?

A

destructive waves cause material to be removed and erosion of cliffs take place by marine processes

Can have significant material removed within hours

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9
Q

What an example of a bay along the High energy coastline and how it has been impacted?

A

Robin Hood’s bay

since 1970, 200 cottages have been lost

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10
Q

How do high energy coastlines cause cliffs to slump?

A

the ground becomes saturated with water and can cause this to slump

This can happen within Days/hours/mins

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11
Q

What is an example of cliff slumping?

A

Holbeck Hall, Scarborough

60m of cliff lost overnight with a further 35m over the next 3 days

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12
Q

How can high energy coastlines cause the retreat of cliffs/ the extension of shore platforms?

A

Marine erosion at the base - weathering of cliff face until rockfall occurs

Takes many years for the undercut to form but seconds for the rockfall

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13
Q

What is an example of shore platforms extending?

A

Ravenscar Cowbar Nab, Staithes

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14
Q

How can a high energy coastline cause beaches to change in gradient and size?

A

Deposition rates can depend on the type of wave

change in prevailing winds impacts LSD

Gradient changes are seasonal

Storm conditions can cause rapid change over hours

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15
Q

What is an example of A beach impacted by a high energy coastline?

A

Robin hood’s bay

Whitby sands/ Filey Bay - LSD

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