Physical fieldwork enquiry

hypothesis

the depth and width of crowden brook increases downstream

What model is the hypothesis based on

the Bradshaw model

how was width measured

• using a tape measure - measure from each end

• Deciding where banks began

How was depth measured

• using a metre stick - do at 4 intervals

How was surface velocity measured

• measure 5 metres along the river using a tape measure

• Drop a dog biscuit and time how long it takes to travel the distance (5m) using a stopwatch

• Repeat 5 times

What was the choice of sampling

Systematic - most accurate view of the river

what were the risks

• rocks

• Nettles

• People

• Weather

• Cold/high water

• Uneven ground

How did limited data collection techniques affect the conclusions?

• depth - people may have measured the rocks instead of the ground

• Width - not everyone measured from bank to bank

Improve:

• use different equipment - orange so you can see clearly

• Repeat to remove anomalies

• Do more sites

How did the quality of data representation affect the conclusions?

• we only have data for sites 1, 6, 12

Improve:

• Field sketch

• Use maps to present data

How did the reliability of the data collected affect the conclusions?

• not everyone measured the same way