Gcse geography sdme happisburgh

Man-made structures — groynes have been installed to stop longshore drift and build up the beaches in certain places. This narrows unprotected beaches elsewhere even further, as new sand does not come down to replace sand eroded by waves.

The coastline is often eroded inland creating salt marshes. In areas with many people at risk the benefits of protecting an area often Gcse geography sdme happisburgh the costs of doing nothing. Often a mixture of hard and soft engineering strategies is used.

Powerful waves — waves at Happisburgh travel long distances over the North Sea so have a long fetch which means they will increase in energy.

There are several reasons why the coast at Happisburgh is eroding so rapidly: Case study — Happisburgh, England There are two contrasting approaches to coastal management.

Rock type — the cliffs are made from less resistant boulder clay made from sands and clays which slumps when wet. Management strategies used at Happisburgh Happisburgh is protected by a wooden groynes, wooden revetments now badly damaged and rock armour.

This is less expensive but not always popular with local residents. Economic reasons — some sea defences negatively impact tourism and reduce the amount of money coming in to the area. At Happisburgh in Norfolk, eastern England, the decision was to hold the line.

Managing our coastlines

Coastal management at Happisburgh has tried to make the beach wider by using groynes, and also uses a sea wall to protect the coast.

Environmental reasons — managing coastlines are important to help preserve and protect wildlife and natural habitats from destruction.

Retreating the line managed realignment — this is when people move out of the dangerous, most vulnerable areas and there is no defence against the elements.

Happisburgh is an example of a low-lying coastline which has been eroded away very quickly. Reasons for management The coastline is eroding at an average of 2 metres a year.

Some people disagree with where the sea defences have been located, especially if it means the land in their community is not protected. This is often expensive but popular with local residents. Social reasons — many people who live along eroding coastlines believe their safety and security must be maintained.

Sea defences are very expensive, so if the number of people living there is low low land value then governments and councils may choose not to protect. Cost benefit analysis involves working out all the benefits of something and comparing with the costs problems that the new idea may create.

Cost benefit analysis There are many social and economic reasons why some coastlines such as Norfolk have been heavily protected, while others have not.See all Geography resources» Related discussions on The Student Room.

AQA GCSE Geography Exam predictions 19th May» WJEC Geography Unit. Happisburgh is protected by a wooden groynes, wooden revetments (now badly damaged) and rock armour. Coastal management at Happisburgh has tried to make the beach wider by using groynes, and also uses a sea wall to protect the coast.

Happisburgh case study

Revision pack for year 11 for SDME exam for OCR B specification exam. Rivers and Coasts. The cliffs at Happisburgh range in height from 6 to 10 m and are composed of a layer-cake sequence of several glacial tills (Figure 3), separated by beds of stratified silt, clay and sand (Hart, ; Lunkka, ; Hart, ; Lee, ).

Essay about Gcse Geography Cromer Controlled Asessment EDEXCEL UNIT 4 GEOGRAPHY CONTROLLED ASSESSMENT HYPOTHESIS INVESTIGATION NORTH NORFOLK COASTAL EROSION AND MANAGEMENT [pic] INTRODUCTION HYPOTHESIS ONE- Coastal management is essential to sustain the economy of.

Dec 01,  · Year 10, here are the powerpoints from the lesson to help with your Happisburgh essay. Remember, you can come and join a workshop after school or see me at any time.

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Gcse geography sdme happisburgh
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