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The Recharge from Rainfall in Alluvial Indo refers to the process by which rainwater infiltrates through the soil and percolates down to replenish groundwater aquifers in alluvial plains. This calculation is essential for managing groundwater resources in the Indo-Gangetic and inland alluvial regions.
The calculator uses the formula:
Where:
Explanation: The formula calculates the groundwater recharge rate based on the catchment area and normal monsoon rainfall, using a standard coefficient of 25 for alluvial Indo-Gangetic regions.
Details: Accurate calculation of rainfall recharge is crucial for sustainable groundwater management, water resource planning, and ensuring adequate water supply for agricultural, industrial, and domestic use in alluvial regions.
Tips: Enter the area of computation in square meters and normal rainfall in monsoon season in meters. Both values must be positive numbers for accurate calculation.
Q1: What is the significance of the coefficient 25 in the formula?
A: The coefficient 25 represents the recharge factor specific to alluvial Indo-Gangetic regions, accounting for soil permeability, infiltration rates, and other hydrological characteristics.
Q2: How is Normal Rainfall in Monsoon Season determined?
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: What areas are considered "Alluvial Indo-Gangetic and Inland Areas"?
A: These refer to the fertile plains formed by the deposition of alluvium by rivers, primarily the Indus, Ganges, and their tributaries, covering parts of India, Pakistan, Nepal, and Bangladesh.
Q4: Can this formula be used for other geological formations?
A: This specific formula with the coefficient 25 is optimized for alluvial regions. Different coefficients may be needed for other geological formations like hard rock areas or coastal regions.
Q5: How accurate is this recharge estimation method?
A: While providing a good estimate for planning purposes, actual recharge rates can vary based on local soil conditions, vegetation cover, and rainfall intensity patterns.