AS A Level Geography Quiz: Storm Hydrographs

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

It is different from a flood hydrograph

It calculates lag time

It is built across a river channel to measure storm discharge

It measures peak discharge in metres per second

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

Drainage pattern

Drainage density

Vegetation type

Slope

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

Reafforestation

Urbanisation

Farming

Deforestation

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

River stage

Rock type

Meanders

Channel size

5. Which statement correctly describes the recession limb?

It happens twice after each rain event

None of the above

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

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

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

It occurs once to discharge during the rain season

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

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

There is no such thing

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

Rising limb becomes less steep

Longer lag time

Longer peak discharge

Higher peak discharge

Lower peak discharge

Shorter discharge

Steeper rising limb

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

It is the lowest flow after or before a rain event

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

It is the lowest flow the river reaches each season

It’s the highest discharge a river reaches each season

9. Which is not true about storm hydrographs?

They show river discharge for the entire rain season

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

They show changes in discharge over time

They are also known as flood hydrographs

10. Which is true about storm hydrographs?

They only ever need to be constructed once each season

They are all computer-generated animations

They are not really useful to humans

They have to be constructed for each rain event

Question 1 of 10