River Discharge

River discharge is the volume of water that flows through a river per second.

Measured in cumecs - cubic metres per second (m3/s)

Hydrographs show how discharge at a certain point of river chages over time.

storm hydrographs - at time of storm:

Peak discharge: highest discharge during time period shown on graph

Lag time: delay between peak rainfall and peak discharege

Rising limb: the increase in river discharge as rain water flows into river

Fallig limb: the decrease in river disharge as river…