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List the major runoff-generation surfaces in a typical urbanized area.

List the major runoff-generation surfaces in a typical urbanized area.

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Answer #1

Infiltration excess overland flow- when rainfall is more than than infiltration capacity and any depression storage is already filled then this type of runoff generate from urban area.

Saturation excess overland flow- when soil is fully saturated and any depression is already filled with water then this type of runoff is generated from urban area.

Antecedent soil moisture- some time soil hold the moisture content from last rainfall and rainfall occure in next cycle then soil get saturated quickly and generate runoff

Subsurface return flow - water flow through inside of soil and reaches to storage.

In Urban area space is less so chances of runoff generation from Infiltration excess overland flow, Saturation excess overland flow, Antecedent soil moisture and Subsurface return flow

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