Walton-on-the-Naze (Distinctive Landscapes) :) Flashcards

1
Q

name of more resistant (impermeable) rock

A

London clay

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2
Q

name of less resistant (permeable) rock

A

red crag

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3
Q

Downside of rock gabions (steel cages full of rock) being placed along the base of the cliff in 2017

A

some of the cages broke open and led to more abrasion against the cliffs

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4
Q

how many frost days annually

A

19

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5
Q

Why are the waves so destructive?

A

Increased wind speeds due to long fetch means there are more destructive waves.

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6
Q

Name 3 pieces of equipment needed in a beach profile:

A
  • clinometer
  • ranging poles
  • measuring tape
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7
Q

What does a beach profile show us?

A
  • If the beach has a shallow gradient then it has constructive waves
  • If it has a steep gradient then it has destructive waves
  • Walton-on-the-Naze has constructive waves
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8
Q

Describe the method of groyne analysis?

A
  • Measure both sides of the groyne using a tape measure and calculate the difference
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9
Q

What does a groyne analysis show us? (Any Naze specific knowledge?)

A
  • A large difference in height indicate that the groynes are very effective
  • In Walton-on-the-Naze we found that the south side had more sand and a greater height
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10
Q

What do pill boxes show us?

A

They show how much the cliffs have retreated since WW1

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11
Q

How did we present the beach profile?

A

Line graph with a protractor

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12
Q

How did we present the groyne analysis?

A

a bipolar bar graph to clearly show the difference in height

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13
Q

Evidence that the rip rap was effective?

A

The cliffs behind it had a steeper gradient (less slumping) and there was more vegetation

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14
Q

Name two positive of a cliff sketch:

A
  • contemporary/up to date
  • easy to annotate
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15
Q

Name two negatives of a cliff sketch:

A
  • subjective
  • drawing ability
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16
Q

Name two positives of a groyne analysis:

A
  • we repeated it 3 times
  • human error was limited (measuring tape was the only piece of equipment used)
17
Q

Name three negatives of a groyne analysis:

A
  • groynes were broken
  • height varies along groyne (only measured at one point)
  • human error
18
Q

Name a positive of a beach profile:

A

lots of technical equipment used for more accurate results (clinometer, ranging poles, measuring tape)

19
Q

Name two negatives of a beach profile:

A
  • measuring tape blown in wind
  • ranging poles at inconsistent heights
20
Q

What is the overall title?

A

How do humans impact upon coastal processes at Walton-on-the-Naze on the Essex coast?