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Coastal Protection Report.

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Introduction

Coastal Protection Report Introduction My geographical study involved an investigation into different methods of coastal protection. The study was conducted around a small part of South West coastline in Cumbria, around Barrow in Furness. This area has a large variety of coastal defences in a relatively small geographical area that is why it was chosen for my study. We recorded our data onto a standardized coastal protection recording sheet. The information we collected was used to investigate 3 possible hypothesis. Hypothesis The 3 possible hypothesis are; * There is a link between the cost of a hard defence system and its structural effectiveness. * There is a link between the value of the land and the amount spent. * The more effective sea defence systems are by their very nature less aesthetically pleasing. Method In order to obtain the required detail/research needed, we used a stratified technique. This is where sites were selected based on previous visits by us to this area of coastline. This is better than a random sample as random samples may have given me all the same type of defence not a large variety. This coastline had a variety of different defence systems of different ages, and effectiveness. ...read more.

Middle

Sand and shingle Aspect: West Current Land use: Nature of erosion/mass-movement: Destructive waves Possible causes of erosion/mass movement: Marine erosion Details of existing/past defences: �5 million, limestone blocks that were specially made, Special paving, Structural effectiveness: 9 Aesthetic value: 8 Location number: 6 Name of site: South of Walney Defence type: None Geology: Boulder clay lateral moraine Nature of the beach: sand and shingle Aspect: south south west Current Land use: agricultural Nature of erosion/mass-movement: erosion of boulder clay Possible causes of erosion/mass movement: marine Details of existing/past defences: Structural effectiveness: 1 Aesthetic value: 4 Photo not available The results were then recorded in a table; AREA COST OF SEA DEFENCE STRUCTURAL EFFECTIVENESS RELATIVE COST OF LAND PER HECTARE AESTHETIC EFFECTIVENSS BARDSEY (OLD SEA WALL) �600 PM 4 �500 3 KINGFISHER FACTORY (MAINLAND SEA WALL) �1,000 PM 6 �50,000 4 MOAT FARM (GABIANS) �200 PM 8 �10,000 7 RAMPSIDE (NEW SEA WALL) �3,000 PM 8 �60,000 5 NORTH OF WALNEY (FISH TAIL GROIGNE) �5,000 PM 9 �75,000 8 SOUTH OF WALNEY �0 1 �250 4 Analysis of results My results show that the more money spent on the sea defence structures the higher the structural effectiveness. ...read more.

Conclusion

We got to understand the processes of long shore drift and why groynes were needed to prevent it. We also got a better understanding of coastal features like berms storm beaches and the effects of constructive and destructive waves. Evaluation My results were expected, as obviously the defence systems that had lots of money spent on them were more effective. Although this conclusion cannot be definite as the marks given to each defence system for its structural effectiveness was just an educated guess not actually a fact based on scientific research. Because of this the results could differ on basis of opinion. The results could have been different however had I done my study over a wider area of coastline of a different coastline. Also if I'd taken more samples this could have affected my results. My results could also have been more accurate if I had spent longer researching each defence system and researched them in more detail. I could also have looked at defence systems on the Internet to get a better knowledge of defence systems around the country and around the world. Another way to improve my study would be if I was to go back in 10 years time and see if the systems were still as structurally effective as they are now and how much they have deteriorated. ...read more.

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