GCSE GEOGRAPHY SWANAGE CASE STUDY

The areas where the soft rock has eroded away, next to the headland, are called bays. They trap material being transported by longshore drift to create larger beaches which can then absorb wave energy to reduce erosion rates. It connects the Isle of Portland to the mainland. At the back of the cove is a band of more resistant chalk, so erosion is slower here. Biological weathering caused by the vegetation on the top of the headland is also breaking up the rock.

Behind the limestone is a layer of clay which is softer so more easily eroded. Sea wall Concrete sea walls are in place along most of Swanage beach. This caused the formation of Old Harry, a stack. It connects the Isle of Portland to the mainland. Groynes are wooden or stone barries which are built at right angles to the coast.

Coastal Case Studies – Mindmap in GCSE Geography

The limestone cliffs forming the back wall of the cove are vulnerable to mass movement and sometimes experience small slides and slumps. The geograpuy around Swanage is made up of bands of hard and soft rock.

However, this creates a strong backwash which removes sediment from the beach and can lead to erosion under the wall. At the back of the cove is a band of more resistant chalk, so erosion is slower here.

How is human activity, including mangement, working in combination with geomorphic processes to shape the landscape? This means waves are slowed, reducing erosion and will help to protect proprties and cliffs. It connects the Isle of Portland to the mainland. The spit has continued to join to the Isle of Portland. The entrance to the cove is narrow where the waves have geograpuy through weaknesses in the resistant limestone. Sea wall Concrete sea walls are in place along most of Swanage beach.

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Dorsert is located on the southern coast of the UK. Biological weathering caused by the vegetation on the top of the headland is also breaking up the rock.

The alternating bands of hard and soft rock run parallel to the coast. In the wintersand and shingle were dredged from the sea bed at Fase Harbour and added to the upper parts of Swanage beach creating a wider beach.

Coastal Case Studies

It has been created by longshore drift. Dorset is located in the south of England. Longshore drift affects the bay carrying material mainly gravel from the south to the north of the beach.

Its coastline has examples of many erosional and depositional landforms.

An Examination of the coast line in the Swanage Area.

This is made of chalk which is a harder rock. Groynes Groynes are wooden or stone barries which are built at right angles to the coast. The soft rock is made of clay and sands, and the hard rock is chalk and limestone. But, by stopping the movement of beach material along the coast beaches further down the coast are becoming narrower and subject to more erosion due to reduced ability to absorb wave energy.

New timber groynes were installed on Swanage beach in and have reduced the loss of beach material. Elsewhere, the cliffs are not covered by vegetation, so wet weather weakens them causing slumps.

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They trap material being transported by longshore drift to create larger beaches which can then absorb wave energy to reduce erosion rates.

gcse geography swanage case study

The headland juts out into the sea, so it is more vulnerable to high-energy waves. As areas of caee Dorset coast are being eroded, properities and infrastructure are at risk. The areas where the soft rock has eroded away, next to the headland, are called bays.

gcse geography swanage case study

Coastal management strategies are being used along the Dorset coastline to prevent erosion in some areas but they have impacted the landscape and caused changes to the natural environment. This caused the formation of Old Harry, a stack.

Because there’s no erosion, there is no material to replenish the beach meaning the beach level will become lower.

Behind the spit there is The Fleet, a lagoon.

How are geomorphic processes creating coastal landforms? Groynes are wooden or stone barries which are built at right angles to the coast. Then the cove widens where the softer clays have been more easily eroded.

They reflect waves back out to sea preventing erosion of the cliff. Erosion by waves opened up a crack in the headland, which then became a cave and eventually an arch.