1.2 Rainfall- discharge relationships with drainage basins Flashcards Preview

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Flashcards in 1.2 Rainfall- discharge relationships with drainage basins Deck (10)
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1
Q

River Regime

A

Annual variation in the flow of a river

2
Q

Flood or Storm hydrograph

A

Shows how a river changes over a short period.

3
Q

Rising limb

A

Shows how quickly the flood waters begin to rise

4
Q

Peak flow

A

Maximum discharge of the river as a result of the storm

5
Q

Time lag

A

Time between the height of the storm and the maximum flow of the river

6
Q

Recessional limb

A

The speed with which the water level in the river declines after the peak

7
Q

Baseflow

A

Normal level of the river, fed by groundwate

8
Q

Quickflow or Stormflow

A

Water that gets into the river as a result of overland runoff

9
Q

Annual Hydrograph

A

(AKA river regime) Average annual flow of a river.

10
Q

Antecedent moisture

A

Moisture already in the soil before a rainfall event