Holderness- Cliff Collapse Flashcards
How long is the Holderness coastline?
61Km
What is erosion causing?
Cliff Collapse
What’s the coastline doing?
Retreating
On average, how much land is lost there every year?
1.8m
Where has the rate of erosion been more than 10m per year?
Great Cowden
Rapid Erosion Causes: What are the cliffs made of?
Boulder Clay
Rapid Erosion Causes: What happens to boulder clay went wet?
It slumps, causing the cliffs to collapse
Rapid Erosion Causes: What is boulder clay?
An easily eroded rock
Rapid Erosion Causes: What are the beaches like?
Naturally narrow
Rapid Erosion Causes: What’s the problem with narrow beaches?
They don’t slow the waves down very much, so give less protection to the coastline
Rapid Erosion Causes: What has worsened the situation?
Groynes (at Mappleton)
Rapid Erosion Causes: Why was groynes made things worse?
They’ve stopped material moving further down the coast, making beaches even narrower
Rapid Erosion Causes: What type of waves does Holderness get?
Highly erosive waves
Rapid Erosion Causes: What does Holderness face?
The prevailing wind direction from the North East (Arctic Ocean)
Rapid Erosion Causes: Why have the waves got increased power?
As they have traveled a long distance
Environmental Impacts: Name a SSSI that are threatened by erosion
The Lagoons, Easington
Environmental Impacts: What’s stopping the lagoons from being eroded?
A narrow strip of sand and shingle (bar)
Impacts on Lives: Give an example of where homes are at risk of collapsing into the sea
Skipsea
Impacts on Lives: Name a road at the risk of collapsing into the sea?
Southfield Lane, between Skipsea and Ulrome
Impacts on Lives: What do collapsing roads cause?
Access issues for residents and businesses
Impacts on Lives: How many caravans are lost at Seaside Caravan Park at Ulrome each year?
10 pitches
Impacts on Lives: How far from the cliff edge is the gas terminal at Easington?
25m
Impacts on Lives: What percentage of Britain’s gas supply does the terminal at Easington produce?
25%
Impacts on Lives: How much farmland is lost each year at Holderness?
80,000m2
