RIVERS - storm hydrographs Flashcards
1
Q
hydrograph
A
a graph showing the changes in discharge of a river in response to a rainfall event
2
Q
lag time
A
the time it takes for water to travel to the river channel from the place of rainfall
time between peak rainfall and peak discharge
3
Q
base flow
A
the normal level of river discharge, maintained by groundwater flow
4
Q
storm flow
A
the extra water in river caused by a storm event
5
Q
unit of measuring river discharge
A
cumecs - m3/sec
6
Q
increase and decrease in discharge
A
rising and falling limb
