Walton on the naze coursework

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SAMUEL COLE 5C

HOW EFFECTIVE ARE COASTAL MANAGEMENT TECHNIQUES AT WALTON ON THE NAZE?

    The aim of the coursework is to find out how effective coastal defences on the north and south beaches at Walton on The Naze, Essex. We have knowledge that the north beach is unprotected, whereas the south beach is protected by man made defences. The naze has been chosen, because it shows a coastline which is eroding very quickly and is also relatively close to our school. A comparison can be seen between the two sides i.e. The North beach appears to show cliffs that are eroding very rapidly, whereas the south beach erosion is less apparent. Two beaches differ significantly and therefore make a fine area to do the coursework. These questions will be asked to help reach a conclusion:

--What evidence is there to show that erosion still takes place?

--What evidence is there that long shore drift is taking place?

--Do the coastal defences on the South Beach affect the North beach?

--Is there a noticeable effect of longshore drift on the coastline? 

Location Of Walton On The Naze?

                                                                               

        

        

             

SEQUENCE OF STUDY

PRODUCE AIM AND INTRODUCTION FOR INVESTIGATION

WRITE OUT THE METHOD

COMBINE ALL GATHERED DATA

(Input all data collected on trip into charts and graphs)

CONDUCT WIDER BACKGROUND SEARCH

(Receive secondary data)

ANALYSE DATA

(Assess the data assuring there are no irregularities)

WRITE UP A CONCLUSION FOR EACH HYPOTHESIS

A FINAL CONCLUSION

 

ARE THE CLIFFS AT WALTON ON THE NAZE STILL ERODING?

DATA COLLECTION

This experiment was carried out on the 11th July 2008 in Walton on the naze, Essex.

 

MY METHOD

   I needed to investigate the evidence that erosion was still taking place on the north beach . In order to perform this, I measured the width from the old pillbox to the bottom of the cliff. I used a measuring tape. The measurement was very relevant because knowing this would help validate how far the cliffs were retreating over a span of years.

--An issue in collecting this data was that we could not walk directly onto the slump, for safety reasons. I also did not have the exact placement of the pillbox.

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  To overcome these issues above, I took another set of readings measuring the angle to the top of the beach using ranging poles and clinometers. Putting these two results together. I can work out how far the cliffs have retreated since 1945,and then how much it is retreating on average each year. The ranging poles were set at 20m intervals. The height we measured this was at 1.5m.This is shown clearly in the diagram below.

These angles would benefit me in working out the measurement of the cliff height (helps me to know how high ...

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