paper 3 Flashcards
main physical question
How effective are the costal management strategies at newton beach
main human question
how successful has regeneration been in cardiff bay
reason for choosing newton beach
- fetch of 7000 km- prevailing wind from south west strong waves
- discordant coastline to date different parts and see rate of erosion
- Range of strategies to protect high value land
- range of attractions manmade and natural
risks at newton beach
- slips trip falls- appropriate clothing and footwear
- weather- waterproofs
- tide- keep a distance
quantitative data at newton
- beach profile (systematic)
- angle of elevation- clinometer & ranging poles (systematic)
- sediment size (stratified-random)
Qualitative data at newton
- powers scale of roundness (stratified-random)
- field sketch (stratified)
- Bi-polar survey (stratified)
3 hypothesis at newton beach
- There will be more sediment on the west side of the groynes compared with the east
- Sediment will be larger and more angular on the west side of the beach
- Costal defences will have an impact on costal processes
results and presentation of beach profile
In beach profile line graph we can see:
- west side steeper (greater gradient)
- cross sectional area is greater on the west side (20.48m^2 vs 23.52m^2)
- positive correlation between distance from shore and height
aligns with prevailing winds and longshore drift
results and presentation of pebble size
we found the east side had a much smaller
presented in a dispersion graph where it was clear the east side had a smaller (inter quartile) range and a lower median compared to the west side proving our hypothesis right(wave refraction. We used a dispersion graph and a box and whisker plot (can show range and anomalies in a variety of statistical info)
limitations of a dispersion graph
- need a large data set- can be easily squewed
- requires statistical measures to be understood and calculated
- only one variable can be shown
results and presentation of sediment shape
divided bar graph showed that while the overall roundness was greater on the east side the west side had a greater proportion of well rounded rocks hence slightly disproving our hypothesis (divided bar chart shows a visual presentation of the different proportions found and makes it easier to make a comparison
disadvantages of a divided bar graph
- in this case angularity is quite subjective and the bar graphs have too small a sample size
- impossible to extract info on specific rock
- cant represent more than one point at a time
advantages and disadvantages of field sketches
- they show important features of the land
- may show the impacts of costal process
- quite subjective and can be vague
reasons for choosing cardiff bay
- recently regenerated
- easily accessible as it is capital of Wales
- many buildings to survey land use
- it has increased in size
risks and mitigation at cardiff
- getting lost- keep copy of map and know meet up points & emergency phone number
- slips trips and falls- appropriate footwear
- people- avoid suspicious looking people and stay in groups of at least 4