Coastal fieldwork Flashcards
(10 cards)
What is our hypothesis?
The dominant waves at Portreath beach, Cornwall, are destructive.
Give an example of two hazards, and how we mitigated them.
- Sand blowing in your eyes; don’t throw sand and wear eye protection.
- Drowning/ being cut off by the tide; don’t go near the sea and stay above the tideline.
What is a hypothesis?
A hypothesis is a statement that can be tested. It can therefore be proven or disproven using evidence.
Why do we complete a risk assessment?
To recognize the risks we might face, and put systems in place to mitigate them.
How did we present our wave counts (primary)?
Proportional arrows onto the map
Evaluate the method we used to present our wave counts: (Strength, weakness, possible improvements)
+ Easy to compare between all data
- Only shows averages, so we don’t see all the data
+ See the wind and wave data together
Why did we do a wave count?
We did a wave count to work out what type of waves were at Portreath. We looked at wind speed as the wave strength is caused by the strength of the wind. The stronger the wind, the more likely the wave is too be destructive.
Evaluate the method we used to collect our wave count data: (Strength, weakness, possible improvements)
+ No technical equipment is needed
+ Worked in groups to check accuracy
- Small sample sizes
- Subjective - what counts as a wave?
* Record more data at different times, days or seasons
Evaluate the method we used to collect our wind speed/direction: (Strength, weakness, possible improvements)
+ No equipment is needed
+ Allows us to see correlation between wind and wave strength
- Not very accurate, subjective
- Only done at one time
* Could have used exact equipment
Evaluate the collection and presentation: field sketches (Strength, weakness, possible improvements)
+ Allows us to see evidence of erosion over a long period of time
+ No equipment needed
- Drawings are subjective
- Sketches might not be clear
* Take a picture on a camera and annotate it.
