HOLDERNESS COAST LANDFORMS CASE STUDY
Coasts menu Where do you want to go now? The average annual rate of erosion is around 2 metres per year. The road running through it, the B links towns along the coastline and would have been lost to coastal erosion if protection measures were not put into place. Notice the impact of erosion to the south of the coastal defences. View The Holderness coastline in a larger map.
Underlying the Holderness Coast is bedrock made up of Cretaceous Chalk. These are shown on the map below. The first is the resuly of the strong prevailing winds creating longshore drift that moves material south along the coastline. At Holderness the environment is primarily one of fetch-limited wind wave development, the dominant wave direction is north-easterly, creating a north-south orientated net longshore current. Defending the Holderness Coastline There is a debate about whether or not human beings should attempt to defend coastlines. 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. This is around 2 million tonnes of material every year.
The Holderness Coast is located on the east coast of England. The boulders are placed like a wall in a m line of defence along the shoreline.
Landform Case Study: Holderness Coast Flashcards Preview
Sea level rise associated with climate change and the prevailing north-easterly wind conspire to make this coast susceptible to rapid rates of coastal holdsrness.
There are two main reasons why this area of coast is eroding so rapidly.
InMappleton was under threat from losing 30 houses and its main road. 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.
An annotated photograph to show the coastal management techniques used the protect Mappleton and their impact click to enlarge. Sorry, your blog cannot share posts by email. Cliff stabilisation has had a positive impact in managing the threat of mass movement. There are two main reasons why this area of coast is eroding so rapidly. The exposed chalk of Flamborough provides examples of erosion, features such as caves, arches and stacks.
Although wave refraction focuses the waves energy on the layered and faulted rocks of Flamborough head, eroding the calk, the incredibly weak nature of the clay still means that it erodes faster than the chalk.
Coastal defences and erosion at Mappleton. They are narrow as the result of the lack of major rivers bringing new sediment into the coastal budget.
The weak clay, stormy nature of the North Sea, and rising sea levels of 4mm per year mean that the future is bleak for parts of this coastline. They have been successful in restricting waves from attacking the base of the cliffs here. This process is called terminal groyne syndrome and happens frequently when groynes are stopped. Coasts menu Where do you want to casr now? The geology runs in bands, with a chalk layer at Flamborough in the North, Boulder clay or till laid down in the last ice age south of that and finally river deposits in the Humber Estuary.
The Holderness coastline
Following the construction of defences, they increased to 3. Please Support Internet Geography If coaat found the resources on this site useful please consider making a secure donation via PayPal to support the development of the site.
There is a debate about whether or not coaat beings should attempt to defend coastlines. Erosion at Skipsea illustrates the human impact of erosion in areas where coastlines are not being defended.
The processes of erosion and weathering occurring are numerous but include hydraulic action, freeze thaw, abrasion, solution and carbonation on the clay. Indeed, today, farmland, tourist sites such as caravan parks and villages remain under threat. The site is self-funded and your support is really appreciated.
These are shown on the map below. Click on the image stuy a clearer picture. Beaches along the coast comprise mainly of shingle and sand eroded from the clay till. Hurricane Katrina Case Study.
The Holderness Coast Case Study – Internet Geography
The rock armour revetment has been very effective in protecting the cliff to the southern end of the settlement. Cae menu Waves Wave Action. The road running through it, the B links towns along the coastline and would have been lost to coastal erosion if protection measures were not put into place.