AS A Level Geography Quiz: Storm Hydrographs

1. Which statement correctly describes the recession limb?

None of the above

It is when the river’s discharge falls after reaching a peak discharge

It happens twice after each rain event

It is when the river recedes upstream after a rain/precipitation event

2. Which of the following does not affect the shape of a storm hydrograph?

Drainage pattern

Vegetation type

Drainage density

Slope

3. What is peak flow as shown on a storm hydrograph?

It is the highest flow after a precipitation event in the river channel

It is the lowest flow after or before a rain event

It is the lowest flow the river reaches each season

It’s the highest discharge a river reaches each season

4. Which of the following affects the shape of a storm hydrograph?

River stage

Channel size

Rock type

Meanders

5. Which statement correctly describes what a rising limp is?

It is the tributary with the highest discharge in the drainage basin

It shows increasing river discharge after a rain/precipitation event in the basin

It occurs once to discharge during the rain season

There is no such thing

It’s the highest discharge reached by a river after a rain/precipitation event in the basin

6. How does urbanisation affect the shape of a hydrograph? Choose all the right answers.

Lower peak discharge

Longer lag time

Steeper rising limb

Shorter discharge

Longer peak discharge

Higher peak discharge

Rising limb becomes less steep

7. What is a storm hydrograph? Select all the correct answers

It is built across a river channel to measure storm discharge

It is different from a flood hydrograph

It calculates lag time

It measures peak discharge in metres per second

8. Which is not true about storm hydrographs?

They show river discharge for the entire rain season

They are also known as flood hydrographs

They show changes in discharge over time

They show lag time after an event before peak discharge is reached

9. Which is true about storm hydrographs?

They are all computer-generated animations

They have to be constructed for each rain event

They only ever need to be constructed once each season

They are not really useful to humans

10. Which land uses affects the shape of a storm hydrograph? Select all the right answers.

Deforestation

Urbanisation

Reafforestation

Farming

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