physical

• title of investigation:

  To investigate the difference in the discharge and sediment characteristics of the sher brook
• method 1 - width of the river


  did ours match the bradshaw model?

  yes - it started off thin and then got wider

  upstream - 4m

  downstream - 4.7m
• method 2-depth of the river(cross section)


  did it match the bradshaw model?

  yes - it started off shallow and then got deeper

  upstream - 7.5cm

  downstream - 10.5cm
• method 3 - velocity


  does it match the bradshaw model?

  NO - the BM says the velocity should increase as you go down stream, our data suggests the water slows down when moving downstream

  however, this may be unreliable - things blocking the river such as logs
• method 4- width and length of stones


  did it match bradshaw model?

  NO - we expect stones to get smaller as you go down stream due to erosion. Our data suggests the stones get bigger, which contradicts the BM

  However, our data may be unreliable as people may have been biased on what stones they chose
• method 5 - bed loading roundness (powers index)


  does it match the bradshaw model?

  yes - the stones get smoother as you go down stream