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For a stretch of coastline you have studied, describe and explain the reasons for defending the coastline and evaluate the success of management strategies used.

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Introduction

For a stretch of coastline you have studied, describe and explain the reasons for defending the coastline and evaluate the success of management strategies used. The north Norfolk coast suffers from cliff retreat because of two main reasons, both related to the geology of the area and the glacial origin. One of the reasons for cliff failure is the cliffs along the stretch of coastline are made up of soft heterogeneous material which is vulnerable to cliff foot processes. ...read more.

Middle

These processes act on the cliff foot causing a wave cut platform and eventually causing the collapse of the cliff. Overstrand also needs defending because of mass-movements such as rotational slump. Rotational slump occurs on weaker rocks, especially clay and have a rotational movement along a curved slip plane. The rates of erosion for Overstrand between 1966-1985 were about 0.4m a year, which shows the coastline, needed defending. These results were emphasised at Clifton Way, which was only built around 25 years ago. ...read more.

Conclusion

Their strategy has also been to defend the main economic activity but to let the cliff retreat in the peripheral areas. However there strategy against mass-movements has not been successful as there are fewThese results were emphasised at Clifton Way, which was only built around 25 years ago. The need for a coastal protection scheme at Clifton Way followed a series of cliff failures, the first failure occurred in May 1990 when cracking of the cliff led to the collapse and recession of approximately 45 metres defences to stop this problem and mass-movements still occur during storms. ?? ?? ?? ?? ...read more.

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