Physical Course Work Flashcards
Test 1
Impacts of coastal management
Sampling-systematic: one location is the retreat area and the other is hold the line.
Place a ranging pole at the sea and identify where the beach angles - place another pole here.
Measure distance between the poles and measure tye angle using a Clinometer.
Repeat with next change in gradient
Do this for both hold the line and retreat
Test 2
What impacts does coastal management have on sediment
One location is retreat line and the other is hold the line.
Set out a grid 10 metres by 10 metres and then use a random number generator to get 2 numbers . Pick a piece of sediment in that area and measure the pebble using calipers. Repeat this 10 times until average size has been calculated and also use a scale between very angular and very round on each piece of sediment you pick up
Test 3
What impacts has the coastal management techniques had on the community
Random sampling by asking 10 peoplealong thnesea front in Swanage beach. Our Questions include
- are you concerned about coastal erosion
- do you think the management has benefitted business
- do you think it has benefitted swanage
Impact of management on beach gradient
Hold the line management using groynes and beach nourishments has created steeper sides and wider beaches .
Impact of management on sediment
The hood the line jas meant sediment is much larger and more angular as it is trapped between groynes and much pf the sediment is being added whereas the retreat line has much smaller and smoother sediment due to increased erosion
Impact of management on communities
Erosion is worried about by the majority of people. Many believe that management has helped businesses however many are displeased with the look of hard management
Issues on beach gradient
It can be difficulbto decide where he beack changes gradient . And reading the clinometer wrong can occur also if the ranging pole is incorrect the numbers will be wrong
You could use a spirit level to identify when the gradient changes and use a digital clinometer to prevent misreadings
Issues with sediment measuring
There is a natural tendency to pick up the bigger rocks creating a bias. Estimating the roundness of a rock is subjective when using a power scale
To correct issues you should pick up 3 rocks from each point and use only one person for the power scale
Issues with the surveys
More common to ask older people as they appear friendlier removing random side of investigation and we only did it for one day meaning we could have asked a bunch of tourists who do not represent the views of the residents
We should repeat on other days for more accurate results