1.5 Stream Research

How do you measure velocity?

• Velocity = Speed/Distance

• Speed = Distance/Time

• Velocity = Speed/Time

• Speed = Gradient/Distance

Velocity ............ downstream

(a)  

What is the definition of discharge?

• The measure of how much water contact there is with the bed and the banks of a river

• The amount of water coming from tributary streams

• The measure of how efficient the channel is at transporting water and sediment

• The amount of water passing a certain point every second

Discharge .......... downstream

What is the definition of channel width?

• Measure from starting point to end point (0-10m)

• Measure how deep the channel is bank to bank

• Measure from bank to bank

• Measure from upstream to downstream

Channel width ........ downstream

What is the definition of LOAD size?

• The total amount of load that a river can carry

• Stone erosion. We will measure the length of the stone

• Stone erosion. We will measure how wide a stone is

• This is the roundness or roughness of the material carried by a river

LOAD size .......... downstream

What is the definition of wetted perimeter?

• How wet the stones are when you measure them

• The measure of how efficient the channel is at transporting water and sediment

• The amount of water passing a certain point every second, and is calculated by multiplying the cross sectional area of the river by the velocity

• The measure of how much water contact there is with the bed and the banks of a river

Wetted perimeter ........... downstream