GPN 02 Bradshaw

What does the Bradshaw Model explain?

• How rivers change in depth and width from source to mouth

• How mountains are formed

• The lifecycle of a volcano

• The migration patterns of birds.

Which two variables INCREASE downstream

• Width

• Discharge

• Gradient

• Channel bed roughness

Which is greatest in the upper course?

• Load particle size

• Velocity

• Hydraulic radius

• Load volume

Which word(s) means the speed at which the water in a river travels?

• Velocity

• Hydraulic radius

• Discharge

• Load

What is discharge measured in?

• Liters per minute

• Cubic meters per second

• Gallons per hour

• Kilograms per second

Discharge is measured...

• At a point in the river

• In three sections: upper, middle and lower

• For the whole river, source to mouth

Where was the Schumm model based on?

• North America

• Europe

• Asia

• Africa

Fill in the blank: The Hjulstrom curve looks at how the size of sediment is related to ________.

• temperature

• velocity

• depth

• width

Load in the upper course is angular because it has experienced...

• little erosion

• lots of erosion

• lots of deposition

• little transportation

Fill in the blank: The Bradshaw Model is based on measurements of rivers in ________ Europe.

• Southeast

• Northwest

• Southwest

• Northeast