5.1- Walton on the Naze fieldwork

Question 1

What was the aim of your fieldwork?

Answer 1

to investigate the variation of land forms at Walton on the naze

Question 2

What is qualitative data?

Answer 2

data that provides insights and opinions but no statistics

Question 3

What is quantitative data?

Answer 3

data that involves statistics and measurements.

Question 4

what kid of data is field sketches?

Answer 4

qualitative- insights and opinions

Question 5

What kind of data is Photo annotations?

Answer 5

qualitative

Question 6

what kind of data is infiltration rate measurement?

Answer 6

quantative

Question 7

what kind of data is ground cover measurement?

Answer 7

quantative

Question 8

What kind of data is beach profile?

Answer 8

quantitive

Question 9

What did you do in the field sketches method?

Answer 9

sketched a rock face and annotated a top layer of gravel and sand, a middle layer of red rock and a bottom layer of English clay.then we annotated how erosion and sliding/slumping takes place

Question 10

What did you do in the photo annotations method?

Answer 10

make annotations of a photo and studied how sliding/slumping occur

Question 11

What did you do in the infiltration rate method?

Answer 11

put a drainage pipe in the ground and measured how long it took for a bucket f water to drain through at 5m, 10m, 15m and 20m

Question 12

What did you do in the ground cover measurement method?

Answer 12

put a wire mesh on a grid at different depths and counted the amount of pebbles, rocks, sand and clay

Question 13

What did you do in the beach profile method? method?

Answer 13

used a theodolite pointing at a measuring staff and taking measurements every 1 metre so we can find the gradient

Question 14

Some students discovered that there tape measure was blowing in the wind and not producing accurate measurements. How could they solve this?

Answer 14

place rock down

use other students to hold it.

Question 15

Why are the infiltration rate and gradient not reliable?

Answer 15

they depend on weather

Question 16

what are the units for beach gradient?

Answer 16

degrees

Question 17

What could you use to investigate becah gradient? (equipment)

Answer 17

theodolite
smartphone app
clinometre

Question 18

What are the 3 types of sampling?

Answer 18

random
systematic
stratified

Question 19

When is random sampling used?

Answer 19

When the area is the same throughout and it doesnt matter where you take samples from

Question 20

When is systematic sampling used

Answer 20

when things change in a regular fashion. you take samples at equally spaced out points

Question 21

When is stratified sampling used?

Answer 21

places with no regular pattern and the number of samples is a representative of the whole area

Question 22

name some (hard engineering) coastal defences on the managed side of the beach

Answer 22

GROYNES - prevent transportation of sediments (LSD)
TERMINAL GROYNE- placed at the end of all the groynes to ensure sand doesn’t pass through
SEA WALL- 3-5m high, and deflects the destructive waves.

Question 23

name a (soft engineering) coastal defence on the managed side of the beach

Answer 23

PLANTS AND CLIFF REGRADING- adding sediments and covering it with mesh wire prevents rotational slumping, adding plants absorb the water when it rains, so prevent water infiltrating into the rocks and causing sliding and slumping.

Question 24

what are some positives and negatives of the hard engineering coastal defences on the managed side of Walton on the Naze?

Answer 24

sea wall- requires low maintenance (lasts 30-50 years) however costs a lot of money (£500,000)
groynes- cheap (£2000) and prevent sea removing sand however expose other coastal areas further down stream.

Question 25

what are some positives and negatives of the soft engineering coastal defences on the managed side of Walton on the Naze?

Answer 25

cliff regarding- low cost and doesn’t have a big impact on the natural landscape, however it requires ongoing maintenance and isn’t very resistant to storm erosion.