Home
Back
Formula Used:
| From: | To: |
This calculator estimates daily rainfall based on runoff volume percentage for wet antecedent moisture condition (AMC). It uses a specific formula to convert runoff volume percentage to daily rainfall measurements.
The calculator uses the formula:
Where:
Explanation: This formula provides a linear conversion from runoff volume percentage to daily rainfall measurements, specifically calibrated for wet antecedent moisture conditions.
Details: Accurate daily rainfall estimation from runoff volume percentage is crucial for hydrological modeling, water resource management, flood prediction, and agricultural planning, particularly under wet soil moisture conditions.
Tips: Enter the runoff volume percentage value. The value must be valid (greater than 0). The calculator will compute the corresponding daily rainfall in millimeters.
Q1: What are antecedent moisture conditions (AMC)?
A: AMC refers to the moisture content in the soil before a rainfall event, which significantly affects runoff generation. Wet AMC indicates saturated or near-saturated soil conditions.
Q2: How accurate is this conversion formula?
A: The formula provides a general estimation. Accuracy may vary depending on specific watershed characteristics, soil types, and local climatic conditions.
Q3: When should this formula be used?
A: This formula is specifically designed for wet antecedent moisture conditions. Different formulas may be needed for dry or average moisture conditions.
Q4: What are typical runoff volume percentages for wet AMC?
A: Runoff volume percentages vary widely but are generally higher under wet conditions due to reduced infiltration capacity of saturated soils.
Q5: Can this calculator be used for flood prediction?
A: While it provides rainfall estimates, comprehensive flood prediction requires additional factors including topography, land use, and drainage characteristics.