- Antecedent soil moisture
Antecedent soil moisture is a term used in
surface-water hydrologyin reference to runoffprediction and in process geomorphologyin reference to fluvialpatterns in drainage basins. Soilretains a degree of moisture after a rainfallevent. This residual water moisture affects the soil's infiltration capacity. During the next rainfall event, the infiltration capacity will cause the soil to be saturated at a different rate. The higher the level of antecedent soil moisture, the more quickly the soil becomes saturated. Once the soil is saturated, runoff will occur.
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