Factors influencing storm hydrographs

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  • Created by: evcoll3
  • Created on: 07-05-15 16:26

Factors influencing Storm Hydrographs


  • Large basins receive more precipitation than small therefore have larger runoff.
  • Larger size means larger lag time as water has a larger distance to travel to reach the trunk river.


  •  Elongated basin will produce a lower peak flow and larger lag time than a circular one of the same size.


  • Chanel flow can be faster down a steep slope therefore steeper rising limb and shorter lag time.

Rock Type

  •  Permeable rocks mean rapid infiltration and little overland flow therefore shallow rising limb.


  • Infiltration is generally greater in thick soil, although less porous


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