- What is Holderness Coast?
- Why is Holderness eroding so quickly?
- What is the average rate of erosion in the town of mappleton?
- What are the effects of erosion on the Holderness coast?
- What does Holderness mean?
- What is the purpose of a groyne?
- Why does mappleton need protecting?
- How long is Holderness Road?
- What is terminal groyne syndrome?
- Why does Holderness Coast need protecting?
- How long does a groyne usually last?
- Is Holderness a discordant coastline?
What is Holderness Coast?
The Holderness Coastline is in the North of England and runs between the Humber Estuary in the south and a headland at Flamborough head.
It has the unenviable reputation as the number one place in Europe for coastal erosion, and in a stormy year waves from the North sea can remove between 7 and 10m of coastline..
Why is Holderness eroding so quickly?
There are two main reasons why this area of coast is eroding so rapidly. The first is the resuly of the strong prevailing winds creating longshore drift that moves material south along the coastline. The second is that the cliffs are made of soft boulder clay which erodes rapidly when saturated.
What is the average rate of erosion in the town of mappleton?
2.0m per yearSituated approximately 3km south of Hornsea lies the village of Mappleton. Supporting approximately 50 properties, the village has been subject to intense erosion at a rate of 2.0m per year, resulting in the access road being only 50m from the cliff edge at its closest point.
What are the effects of erosion on the Holderness coast?
On average, the coastline of Holderness erodes at about 2m per year, mainly during storms and tidal surges. The impacts of coastal erosion on socio-economic aspects are: damage and loss of infrastructures, loss of property, loss of farmland, danger for tourism, damage to coastal protection.
What does Holderness mean?
Holderness is an area of the East Riding of Yorkshire, on the east coast of England. An area of rich agricultural land, Holderness was marshland until it was drained in the Middle Ages. Topographically, Holderness has more in common with the Netherlands than with other parts of Yorkshire.
What is the purpose of a groyne?
Answer: Groynes were originally installed along the coastline in 1915. Groynes control beach material and prevent undermining of the promenade seawall. Groynes interrupt wave action and protect the beach from being washed away by longshore drift.
Why does mappleton need protecting?
In 1990, Mappleton was under threat from losing 30 houses and its main road. In 1991, sea defences were built in order to protect the village and B1242 main road from intense sea erosion. … In order to protect the cliffs along the front of Mappleton from undercutting, their gradient was also reduced artificially.
How long is Holderness Road?
The A165 Holderness Road is Hull’s longest shopping street, and a main road heading into the city from the north east.
What is terminal groyne syndrome?
The phenomenon of crenulate bay formation is increasingly referred to as the terminal groyne effect (TGE) or syndrome (TGS). ‘Terminal’ in this sense means the last of what might be a series of groynes in a groyne field. … A seawall may result in increased downdrift erosion when reflected wave energy removes sediment.
Why does Holderness Coast need protecting?
Reasons for management There are several reasons why the coast at Holderness is eroding so quickly: … Naturally narrow beaches – these beaches give less protection to the coast as it doesn’t reduce the power of the waves. Man-made structures – groynes have been installed to stop long-shore drift.
How long does a groyne usually last?
around 25 yearsThe life span of a groyne is around 25 years. They must be replaced periodically to ensure the coastline continues to be protected. The process for removing and replacing each groyne can take up to two months.
Is Holderness a discordant coastline?
The Holderness coastal landscape is defined by its discordant nature: a chalk headland at Flamborough and glacial deposits of boulder clay along the majority of the coastline. … If the coast was all chalk, or all boulder clay the range of erosion features would be reduced as would the nature of depositional features.