• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

The nature of the beach is a response to the type of waves and beach material.

Extracts from this document...

Introduction

Analysis Two "The nature of the beach is a response to the type of waves and beach material." The coast is constantly changing due to the motion of the waves and sea. There are two types of waves, destructive and constructive. The shape of a beach depends on the waves acting upon it and the size of the beach particles. Destructive waves have a weak swash and therefore cause very little beach building. These waves have a strong backwash that scours the beach dragging material down the beach. These waves are high and very powerful. They generally break on the shore over ten times in a minute. Constructive waves are the opposite. ...read more.

Middle

The wave-cut platform that extends out from the beach into the sea is a factor on the profile. The waves break on the platform, and the friction caused here means a lot of the wave energy is lost thus reducing the power of the wave's backwash. It is therefore possible that destructive waves are acting upon the coast at Selwicks bay but because of the wave-cut platform, measuring 90 metres in length, the waves lose there power and appear to have a somewhat constructive effect on the beach profile. The wave count taken at Selwicks bay showed a high frequency of waves breaking on the shore at an average of 14.2 per minute. ...read more.

Conclusion

There were less than ten a minute (an average of 7.4 per minute exactly) which is one of the characteristics of such waves. The profile of the beach also correlates with the constructive wave theory. The beach has a gentle slope rarely exceeding a +5? angle. The beach material decreases in size as it gets closer to the promenade, further from the sea implying that it has been easily transported up the beach by the strong swash. The seawater is stored in the pores and spaces between the sand grains and leaves little water to form a strong backwash. Thus the water returns down the beach with little friction, as a small and weak backwash, and so pulls very little material away. Aforementioned Evidence: Transects, Pages 15 and 16 Beach Profiles, Pages 17 and 18 Wave Frequency Charts, Pages 19 and 20 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Coastal Landforms section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Coastal Landforms essays

  1. To what extent do beach characteristics change with increasing distance along shore.

    After finishing with beach height, our group started to measure percolation rate and sediment size. 2 people needed for each activity. Investigation got carried on in 2 different sites of Walton coast and it was January month also each activity took 10 minutes to be completed.

  2. "An investigation into the methods of coastal management along Brighton's Coastline and the reasons ...

    South America, 20% come from Europe itself, 10& come from Australia, 10& come from North America, 0% come from Asia and 20% come from another country. My discovery shows that many of the people come from UK, this could be because they live close-by and has heard of Brighton and its magnetism when it comes to 'tourism'.

  1. How and why does Beach Characteristics

    There are three main types of wave, which alter the gradient of the beach profile (spilling- gentle, plunging- steep, surging- very steep). Wave types are constantly changing. Material at the top of the beach is larger than material at the bottom.

  2. How and why do the beaches vary at Barmston, Mappleton and Hornsea?

    The amount of cliff lost is recorded from Sept 97 to March 98 and shows the amount lost in those 6 months, which can be compared to the average erosion rates. The fact that the results are over 4 years old means that they aren't as accurate today.

  1. GCSE Georgraphy Coursework: Coastlines

    large amount of rock armour was used to hold them in place. When the channels were first put in, they were put in the wrong places. All the slumped material on the beach is taken away mixed up and put back in the same place, but in a much smaller gradient.

  2. How and Why ChristChurch Bay is Manged

    see the proof of the transported sediment on both of the site. Summary of results: The primary and secondary data that has been collected has helped to find some basic relationship in helping to prove the hypotheses. For example: * Pebble analysis and beach profiles of Hurst castle spit shows

  1. "Tourists are in conflict with the Sand Dune ecosystem at Oxwich Bay Nature Reserve".

    * Fore Dune - Intermediate between Embryo and Yellow dune, quickly attain features of Yellow dune. * Yellow Dunes - soil fertilised by decaying plants, supporting a greater number of vegetation species, like lyme grass. * Grey Dunes or Fixed Dunes - have decaying plants, fertilised soil, deeper soil, more

  2. An investigation into how beach material varies in shape and size up the beach.

    Risk of being cut off by the tide - When taking results it was necessary to keep an eye on the tide, as you would have to wait a long time for the tide to go out again to be able to leave the cove.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work