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Rainfall Infiltration Factor Formula:
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The Rainfall Infiltration Factor refers to the measure of the rate at which water from rainfall penetrates into the soil, a critical parameter influencing design and management of water resources.
The calculator uses the Rainfall Infiltration Factor formula:
Where:
Explanation: The formula calculates the infiltration factor by dividing the recharge from rainfall by the product of the computation area and normal rainfall.
Details: Accurate calculation of rainfall infiltration factor is crucial for water resource management, groundwater recharge assessment, and designing effective water conservation strategies.
Tips: Enter recharge from rainfall in m³/s, area of computation in m², and normal rainfall in meters. All values must be positive numbers.
Q1: What is a typical range for rainfall infiltration factor?
A: The factor varies widely depending on soil type, land use, and rainfall intensity, typically ranging from 0.1 to 0.5 for most soils.
Q2: How does soil type affect infiltration factor?
A: Sandy soils generally have higher infiltration factors than clayey soils due to better permeability and drainage characteristics.
Q3: Why is monsoon season specifically considered?
A: Monsoon season typically contributes the majority of annual rainfall and is the primary period for groundwater recharge in many regions.
Q4: How does land use affect infiltration factor?
A: Urban areas with impervious surfaces have lower infiltration factors, while natural vegetated areas typically have higher infiltration rates.
Q5: Can this factor be used for drought assessment?
A: Yes, monitoring changes in infiltration factor over time can help assess drought conditions and groundwater depletion trends.