Holderness Flashcards
Name all the coastlands in the Holderness coast
Aldbrough, Hornsea, Mappleton and Withernsea
What is Aldbrough?
A small village which contains about 10 houses
Is there coastal management in Aldbrough? What are they? Or why not?
No, there isn’t neither soft or hard due to the low value
What is the problem with Aldbrough?
The longshore drift is minimal and it receives few sediment to protect itself from the erosion of the waves
What is suffering in Aldbrough?
A cliff made of Boulder clay presented in its coast is suffering from high erosion rate (9m per year)
How did human activity unintentionally cause change in Aldbrough?
By building groynes which stopped the longshore drift effect and created high erosional rate in Aldbrough
What type of coastal management are groynes and what do they do?
Hard engineering. They are wooden barriers constructed next to beaches to retain material. They help absorb energy from waves which reduces the rate of erosion.
What is Hornsea and what does it depend on?
A small coastal town located between Bridlington and Withernsea. It depends on tourism and recreation.
What hard engineering techniques are used in Hornsea?
Sea walls which protect settlements and Wooden groynes which retain material and absorb wave energy.
What soft engineering techniques are used in Hornsea?
Beach nourishment. Beaches are made higher and wider by importing sand and shingle to an area affected by longshore drift.
Where is Mappleton located and situated?
On the Holderness coast of east Yorkshire and situated approx. 3km south of Hornsea. It supports approx. 50 properties.
What is the problem in Mappleton?
The village has been subject to intense erosion at a rate of 2m per year.
What is the geology in Mappleton?
It lies upon unconsolidated till which is soft and erodes very easily.
What hard engineering methods are used in Mappleton?
Two rock groynes and rock armour which absorb energy from the waves to reduce the rate of erosion.
How much did it cost too build coastal management in Mappleton?
2 million pounds.
What have hard techniques helped with in Mappleton?
They helped develop wide and steep sandy beaches.
What is Withernsea?
It is a well developed town recognized as a popular tourist and recreational site.
Why are changes in Withernsea important?
Because they affect Easington unintentionally.
What hard engineering methods have been used in Withernsea?
Sea walls, curved sea walls, 2 revetments and rock armour which are all highly effective
What is the geology type in Withernsea?
Boulder clay which is soft.
