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Sheringham & Happisburgh coast 1

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Introduction

This is the fetch; fetch is the distance that which a wave travels before it reaches its destination which is the beach This chart shows that the highest of the three counts was 19 waves per minute with the least having a frequency of at least 15. This high frequency of waves suggests that the waves on the beach in Happisburgh were destructive. Destructive waves also have a short wavelength and a strong backwash. ...read more.

Middle

There are many different ways erosion can happen on the coast and it is hard to distinguish them from each other, there are 4 main types: Corrasion/Abrasion The eroding away of rock surfaces when waves pick up beach materials such as pebbles and they are thrown at the rock face. Hydraulic action When waves hit the base of a cliff and air is compressed into cracks. ...read more.

Conclusion

Attrition The wearing away of rock fragments as they rub against each other during transportation. Corrosion/Solution When certain types of cliff erode as a result of weak acids in the sea. The Happisburgh cliff suffer from Hydraulic action, it is easy to see the damage this erosion causes. Sheringham suffers from Attrition. Longshore drift Longshore drift is the gradual movement of sediment along the beach and this may result in spits, bars, and the build up of sand and pebbles against groynes. This is an example. ?? ?? ?? ?? ...read more.

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