Storm Hydrographs
- Created by: eviedeehan
- Created on: 08-03-24 17:24
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- Storm Hydrographs
- river discharge
- volume of water flowing in a river each second and is measured in cumecs
- peak discharge, peak rainfall
- lag time - interval between the peaks
- falling limb and rising limb
- Physical Factors affecting Storm Hydrographs
- large catchment - higher peak discharge but longer lag time
- circular catchment area - shorter lag time
- impermeable rocks - reduced lag time and increases peak discharge
- steep catchment - increases peak discharge and reduces lag time
- high vegetation - reduce discharge
- human factors affecting storm hydrographs
- deforested areas - increase peak discharge
- impermeable surfaces means shorter lag time and greater peak discharge
- dams and reservoirs regulate flow by storing water
- abstraction of aquifers lowers ground water levels and increases percolation and infiltration
- river discharge
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