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The Recharge from Rainfall in Hard Rock Areas refers to the process where rainwater infiltrates soil and percolates down to replenish groundwater reserves in regions characterized by hard rock formations with laterite. This is particularly important in areas where groundwater is a primary source of water.
The calculator uses the formula:
Where:
Explanation: The formula calculates the groundwater recharge by multiplying the area with the normal rainfall and a constant factor of 12, which accounts for the conversion and recharge efficiency in hard rock areas with laterite.
Details: Accurate calculation of groundwater recharge is crucial for sustainable water resource management, especially in hard rock areas where water scarcity is common. It helps in planning water usage, preventing over-extraction, and ensuring long-term water availability.
Tips: Enter the Area of Computation for Recharge in square meters and the Normal Rainfall in Monsoon Season in meters. Both values must be positive numbers.
Q1: Why is the constant factor 12 used in the formula?
A: The factor 12 is used to convert the units and account for the recharge efficiency specific to hard rock areas with laterite formations.
Q2: What is the significance of Normal Rainfall in Monsoon Season?
A: Normal Rainfall in Monsoon Season represents the average rainfall during the monsoon period, which is critical for groundwater recharge in these regions.
Q3: How accurate is this calculation?
A: The calculation provides an estimate based on average conditions. Actual recharge may vary due to factors like soil type, vegetation, and rainfall intensity.
Q4: Can this formula be used for other types of terrain?
A: This formula is specifically designed for hard rock areas with laterite. Other terrains may require different formulas and constants.
Q5: What units should be used for input values?
A: Area should be in square meters (m²) and rainfall in meters (m). The result is in cubic meters per second (m³/s).