Hydrographs

Question 0

What gives a gentle sloping rising limb?

Answer 0

Temperature-high temp increases evapotranspiration=reduces run off

Question 1

What gives a steep rising limb?

Answer 1

1. relief- steep land=fast surface run off
2. rock type- impermeable rock=fast run off
3. urbanisation=concrete is impermeable=fast run off
4. drainage density=large amount of courses= run off reaches a bit of river quicker
5. Precipitation-high rain fall=more surface run off

Question 2

What gives a steep falling limb?

Answer 2

Drainage systems-water is transferred back more quickly

Precipitation- SNOW- can lead to flooding due to discharge

Question 3

What gives a gentle sloping falling limb?

Answer 3

Soil type- deeper soil the more water can be absorbed

Dams-slows the rate of discharge to prevent flooding