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The Rainfall Recharge in Hard Rock Poorly Fractured refers to the process of water infiltration into the ground in areas where the underlying geology is hard rock with limited fractures. This calculation is essential for groundwater resource management in challenging geological conditions.
The calculator uses the formula:
Where:
Explanation: The formula calculates the amount of water that infiltrates the ground in hard rock areas with poor fracturing, using a coefficient of 5 to account for the specific geological conditions.
Details: Accurate rainfall recharge estimation is crucial for sustainable groundwater management, especially in hard rock areas where water infiltration is limited due to poor fracturing. This helps in planning water resource allocation and conservation strategies.
Tips: Enter the area of computation for recharge in square meters and normal rainfall in monsoon season in meters. All values must be positive numbers.
Q1: Why is the coefficient 5 used in this formula?
A: The coefficient 5 is derived from empirical studies and represents the specific infiltration characteristics of hard rock areas with poor fracturing.
Q2: What is considered a normal rainfall value?
A: Normal rainfall refers to the statistical average of rainfall measured over a specified period, typically 30 years, during the monsoon months in a given region.
Q3: How accurate is this calculation method?
A: While based on empirical data, the accuracy may vary depending on local geological conditions and should be used as an estimation tool alongside other hydrological assessments.
Q4: Can this formula be used for other rock types?
A: This specific formula is designed for hard rock areas with poor fracturing. Different coefficients and formulas may be needed for other geological formations.
Q5: What time period does the monsoon season typically cover?
A: The monsoon season duration varies by region but typically spans several months when the majority of annual rainfall occurs.