Hydrographs Flashcards
1
Q
Peak discharge
A
Highest discharge in period of time your looking at
2
Q
Lag time
A
The delay between peak rainfall and peak discharge
3
Q
Rising limb
A
Increase in river discharge as rainwater flows into river
4
Q
Falling limb
A
Decrease in river discharge as river returns to normal level
5
Q
Surface run-off
A
Flowing quickly overland
6
Q
Relief
A
Lots of run off occurs on steep land
7
Q
Weather
A
Lots of rain means soil becomes saturated so it can’t absorb anymore water
8
Q
Rock type
A
Water infiltrates through pores in permeable rock and flows along cracks in pervious rocks
9
Q
Temperature
A
Hot dry, cold freezing means hard ground so more surface run off
