1
Q
Flooding
A
When discharge is greater then carrying capacity
2
Q
Stage
A
Height of water in the river at any given time
3
Q
Flood stage
A
Level that likely to cause damage
4
Q
Hydrograph
A
Graph of stream using discharge vs time
5
Q
Lag time
A
Differen in time between the peak rainfall and peak discharge of stream
6
Q
Causes of flooding
A
Precipitation Snowmelt volcanoc eruptions Dam/ levee failure Urbanization
7
Q
Urbanization
A
Decreases the lag time
8
Q
Factors controlling runoff vs infiltration
A
Soil moisture(wetvsdry) Local topography(steepvsflat) Vegetation Ground material(soilvsbedrock) Fires(soil not able to absorb water)
9
Q
When could the next 100 year flood occur
A
Happen any year
Geological Disasters
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