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Flashcards in Water balance Deck (8)
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1

What is the water balance?

the balance between inputs and outputs

2

Water balance formula?

precipitation = discharge + evapotransipiration +/- changes in storage

3

What is the discharge of a river?

amount of water in a river flowing past a particular point

4

How is discharge calculated?

by multiplying the cross-sectional area of the river by its velocity at the measuring point

5

What is bankfull?

maximum discharge that a river channel is capable of carrying without flooding

6

What is base flow?

the normal day-today discharge of the river and its consequence of slow moving soil throughflow and groundwater seeping into the river channel

7

What is lag time?

time between peak rainfall and peak discharge

8

What is peak discharge?

point on a flood hydrograph when river discharge is at its greatest