Paper 3

• What is the name of the Dawlish warren feildwork?


  An investiafton into longshore drift at dawlish warren
• What is long shore drift ?


  The movement of sediment along the coastline
• What was our hypothesis ?- Dawlish


  1). Long shore drift goes from west from east at Dawlish warren beach

  2). The beach will get wider as you go from west to east
• Why was Dawlish a good location for field work? And disadvantage

  Stretch of coastline with a beach

  
  

  Accesible to the public, get onto site and walk around to collect data

  
  

  Short distance so we can get there and back and collect data in one day

  
  

  Clear evidence of longshore drift

  
  

  A tourist spot ❌
• What are the risks at Dawlish ?

  Travel by coach- road traffic accident or accident when getting off the coach

  
  

  Weather- sun burn, sun stroke

  
  

  Walking on the beach- wasps, not appropriate foot wear, far from shops

  
  

  Ocean- could get high, drown
• What can we do to prevent this risks ?

  Road accident- remind students to wear seatbelts, carry first aid kits, remind students to look both ways when leaving coach, unload coach in safe position

  
  

  Sun burn, sun stroke-bring sunscreen, check weather for next day, bring plenty of water, wear appropriate clothes

  
  

  Wasps, footwear, far from shops- make sure no one is allergic to wasps, don't wear sliders or flip flops, take food and drink in bag

  
  

  Drowning- check tide times before you leave so u don't get cut off, riptides (don't go in sea)
• What is primary data ?


  Data we collect ourselves
• What is secondary data ?

  Data collected by someone else or an organisation
• What is quantitative data ?

  numerical data
• What is Qualitative data ?


  descriptive data
• What is stratified sampling ? Advantages and disadvantages

  Choose were to take a measurement

  
  

  Get the results you need ✅

  Introduces bias ❌

  Subjective when gradient changes ❌
• What is systematic sampling ? Advantages and disadvantages

  Where a sample is taken at regular intervals

  
  

  Fair investigation ✅

  Can miss out an anomaly ❌
• What are our 2 hypotheses?

  Long shore drift moves material from west to east

  
  

  The beach will get wider as you go from west to east
• How and why did we measure longshore drift ?

  Why- to find direction of sand build up

  
  

  How- got an orange and threw it into a wave , we placed a ranging pole where we threw it, we waited until it came back into shore or after 5 mins and placed another ranging pole. We then measured length between 2 poles

  
  

  Sampling- systematic
• How and why did we measure groyne height ?

  Why- to see where long shore is building up

  
  

  How- measured sand on one side of groyne and the other side to see which had a higher build up of sand
• How and why did we measure beach profile ?

  Why- find relief of land as you go up a beach

  
  

  How- put ranging pole into land then another where there is relief, use a cilometer and stand at first pole and measure the gradient of the land using the other pole, then leapfrog over the pole and place where gradient changes

  
  

  Sampling- stratified
• What method did I use to present beach profile, pros and cons ?

  Used a line graph

  Work out gradient can see beach get wider ✅

  Can easily be misinterpreted by scale ❌
• What method did I use to present groyne height, pros and cons?

  Clustered bar chart

  Easy to make and compare, no limit ✅

  Hard to see specific height and to compare to other sites ❌
• What method did I use to present LSD, pros and cons ?

  Bar chart

  Easy to view, easy to spot patterns ✅

  Not detailed enough ❌
• What was our results for LSD ?

  Graph shows generally LSD is moving west to east.

  Results were expected

  Wind + groyne height support this

  This helps prove hypothesis because most sites have correct LSD movement
• What was our results for groyne height ?

  Graph shows sand is more built up on east side showing it's moving west to east

  Results were expected

  LSD supports these results

  It tells us that LSD is present in that area
• What was our results for beach profile ?

  Graph shows beaches are generally getting wider although it isn't perfect

  Results were expected

  No other data supports this

  Proves that beach gets wider
• What does our reunite from wind speed and direction tell us ?

  On the day the wind was southwest with 10mph

  Results were expected

  LSD supports this method

  Tell is LSD is present
• What did we find out ?

  Hypothesis 1- partially true, LSD was west to east, groyne height west to east except not trust every time , orange went west to east except twice it went backwards

  
  

  Hypothesis's 2- true, beach gets wider spearman's rank shows positive correlation
• What may have influenced my results ?

  Wind direction, constructive waves, good weather
• To what extent were my conclusions reliable ?

  Partially valid, results would be different in different weather conditions, haven't got enough data across all the days to prove hypothesis
• How could the investigation be improved?

  Go back multiple times

  Do more of the beach

  Measure 50 meters from groyne to middle

  LSD-intervals
• Problems with collecting data ?

  Time, had 3 hours

  Beach was flat, limited range in beach profile

  Tourists, had to skip 4 sites

  Hot, couldn't go too far from shops