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

To test if longshore drift is taking place along Deal beach

Extracts from this document...

Introduction

Aim 4 Question: Is longshore drift taking place on the day of our visit? Aim: To test if longshore drift is taking place along Deal beach on the day of our visit and if so, in what direction is it taking place. Theory: The waves move material up/down/along the beach; this is closely related to aim 2 where we measured the berms and ridges on the beach. Longshore drift moves material up and down the beach so we can find if the waves are particularly strong on the day we visited. Method: Firstly we measured wind speed at six different locations using an anemometer; the locations were at the start of site 1 profile survey, end of site 1 profile survey, Deal pier, longshore drift site, groyne box site and just before leaving Deal beach. ...read more.

Middle

After five minutes, the distance traveled was recorded and this took place for thirty minutes. Results: Location Wind speed (mph) Wind direction Temperature (�c) 1 10.5 SE 16 2 12.2 S 19 3 6.3 S 21 4 8.7 S 26 5 5.9 SW 17 6 4.5 SW 27 Longshore drift (pebble) Time taken (minutes) Distance traveled (meters) 5 3.80 10 6.50 15 9.75 20 10.15 25 25.30 30 28.40 Longshore drift (wood) Time taken (minutes) Distance traveled (meters) 1 5 2 3 3 5 4 0 5 -1 6 -8 7 -4 8 15 9 -4 10 -3 Results2: Location Wind speed (mph) Wind direction Temperature (�c) 1 13.1 S 17 2 11.0 S 21 3 7.3 S 25 4 6.7 SW 26 5 5.7 SW 19 6 4.5 S 27 Longshore drift (pebble) Time taken (minutes) ...read more.

Conclusion

This was most visible on the wood test; the plank of wood began drifting Northwards but then drifted more to the South causing our results to go into minus figures. The wind direction was south mainly so this is not surprising and the results in the return visit, where the wind was also Southwards, was more reliable and the figures were positive. Longshore drift on the seabed was also taking place and it started off slowly but as it progresses further into the sea, the pace at which it was being moved picked up especially in the last ten minutes. Conclusion: Longshore drift was taking place on both days of our visits and both towards the south. The wind direction readings also showed this and so did the wind speed. Both tests indicated this however we may have had some anomalous results in the first trip however this was cleared up in the return visit. ...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.

    1716 rs = 0.713 (to 3.s.f) + correlation 95% = confidence level P = 0.05 significance level Step 4: Testing Significance rs = 0.713 > critical value = 0.5874 Reject the null hypothesis. There is a significant positive relationship between the mean beach height and sediment size.

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

    Also I think that the king Alfred Leisure Centre was on the east side of the groyne therefore it needs to be protected and so the land was also in need of protection. If the east neither was not protected the Leisure Centre would be destroyed as the land surrounding would collapse, this will lead to job losses.

  1. Investigate the effects of costal processes on Porlock Bay in Somerset and also to ...

    This is only to exception from 0-2.4 centre metres. The pebbles are distributed evenly around Gore Point because abrasion is always breaking up the rocks to form smaller rocks. Hydraulic action is also forming new rocks and pebbles because hydraulic action is always breaking down the cliffs to form more pebbles of angular shapes.

  2. How and why does Beach Characteristics

    backwash; so has to deposit it on the beach creating a steep gradient made up of larger sediment. The smaller sediment can however be carried down the beach by the low energy backwash. This is why sediment at the top of the beach is usually larger than sediment at the bottom.

  1. Free essay

    Case study: Sediment budget in direction of longshore drift on Changi beach, Singapore.

    small differences along the spit, as the length of measurable area is short in comparison to other longer stretches of beach, and thus the difference in gradient is small between transects. This value is then taken to represent the overall gradient of the beach transect.

  2. An experiment to see if Longshore drift will occur in direction of the prevailing ...

    Destructive waves are when the backwash has more energy than the swash, therefore material is being destroyed. The swash deposits heavy material close to the water's edge as it loses energy. The heavy material consists of bigger pebbles. The backwash water returns to the sea under the influence of gravity.

  1. In my studies I will try and determine how and why management strategies have ...

    At each stage where defences or strategies were apparent I drew various diagrams showing how defences were constructed and other features they had. RANDOM SAMPLING Diagrams not accurate, (sketches). Also extremely windy, hard to collect data in this way. Took various measurements that could be taken from various defences to use later if needed.

  2. What has been the dominant direction of longshore drift in the past along Deal ...

    Angularity Stone type 1 30 Sub rounded Pebble 2 26 Rounded Pebble 3 11 Rounded Pebble 4 25 Sub rounded Pebble 5 17 Rounded Pebble 6 67 Very rounded Cobble 7 44 Very rounded Pebble 8 69 Rounded Cobble 9 65 Very rounded Cobble 10 32 Sub rounded Pebble Groyne Box 1- position 3 Stone number Axis length (mm)

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