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# Has deposition or erosion by the sea been the main factor shaping Deal beach?

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Introduction

Aim 1 Question: Has deposition or erosion by the sea been the main factor shaping Deal beach? Aim: To test if processes of deposition are stronger than the processes of erosion on the beach Theory: To see if the processes of deposition are stronger than the processes or erosion so to do this I must if the waves are constructive or destructive. If deposition is occurring then there will be constructive waves which have less than ten waves a minute. If the beach is being built upon then swash will be occurring rather than backwash. Destructive waves * They are high in proportion to their length * The backwash is greater than the swash so rocks, pebbles and sand are carried back to sea. ...read more.

Middle

Two members of our group then counted the waves every minute for ten minutes so we could see if there was constructive wave or destructive wave. If the beach was being built upon then there would have been less than ten waves per minute. Results: Time (minutes) Waves 1 10 2 9 3 7 4 9 5 11 6 9 7 9 8 8 9 10 10 10 Average: 92waves/10mins = 9.2 waves per minute Results 2: Time (minutes) Waves 1 9 2 9 3 6 4 11 5 9 6 10 7 8 8 9 9 9 10 9 Average: 89 waves/10mins = 8.9 waves per minute Limitations: There were quite a few limitations when we collected this data; firstly was the fact that we only recorded for ten minutes which is not really enough time for a sufficient data collection. ...read more.

Conclusion

If we were to record for a longer period of time such as thirty minutes, we have got a more reliable set of results. Conclusion: I can conclude that Deal beach was being built upon at the time of our visit but as this may be unreliable data, I may be wrong. To aid me in this, I did a return visit wit a different group of friends so I would achieve a better set of results. (The results can be seen above) I found that, again, Deal beach was being built upon however the weather conditions were similar to the visit I did before hand so it is not surprising. I can conclude however that Deal beach also had destructive waves when the weather was more severe e.g. windy, rainy. ...read more.

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