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Formula Used:
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The Possible Recharge refers to the gross recharge minus the natural recharge of the area in hard rock formations with laterite, which is crucial for groundwater management and sustainable water resource planning.
The calculator uses the formula:
Where:
Explanation: This formula calculates the potential groundwater recharge by considering water level fluctuations during monsoon season, watershed area characteristics, and the total water extracted from the catchment area.
Details: Accurate recharge estimation is essential for sustainable groundwater management, determining water availability for agricultural and domestic use, and preventing over-exploitation of water resources in hard rock areas with laterite formations.
Tips: Enter water level fluctuation in meters, watershed area in square meters, and gross water draft in cubic meters per second. All values must be valid positive numbers.
Q1: What is water level fluctuation in this context?
A: Water level fluctuation refers to the irregular rising and falling in number or amount of water during monsoon season in the aquifer.
Q2: How is watershed area defined?
A: Watershed area refers to the isolated area with a well demarcated boundary line, draining the rainwater to a single outlet.
Q3: What does gross water draft represent?
A: Gross water draft refers to the total volume of water extracted or utilized from a catchment area for various purposes.
Q4: Why is the multiplier 3 used in the formula?
A: The multiplier 3 accounts for the maximum specific yield characteristics in hard rock areas with laterite formations.
Q5: What are typical values for possible recharge?
A: Values vary significantly based on local hydrogeological conditions, but generally range from minimal recharge in dry seasons to substantial recharge during monsoon periods.