Possible Recharge In Sandy Alluvium Areas Based On Known Norms Of Recommended Specific Yield Calculator

Formula Used:

\[ R = (16 \times h \times A) - D_G \]

Water Level Fluctuation (h):

Meter

Watershed Area (A):

Square Meter

Gross Water Draft (D_G):

Cubic Meter per Second

Possible Recharge (R):

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1. What is the Possible Recharge Formula?

The Possible Recharge formula estimates the potential water recharge in sandy alluvium areas based on known norms of recommended specific yield. It calculates the gross recharge minus the natural recharge of the area, providing valuable insights for water resource management.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ R = (16 \times h \times A) - D_G \]

Where:

\( R \) — Possible Recharge (Cubic Meter per Second)
\( h \) — Water Level Fluctuation (Meter)
\( A \) — Watershed Area (Square Meter)
\( D_G \) — Gross Water Draft (Cubic Meter per Second)

Explanation: The formula accounts for the relationship between water level fluctuations, watershed area, and gross water extraction to determine the possible recharge capacity in sandy alluvium areas.

3. Importance of Possible Recharge Calculation

Details: Accurate recharge estimation is crucial for sustainable water resource management, groundwater planning, and ensuring adequate water supply in sandy alluvium regions.

4. Using the Calculator

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.

5. Frequently Asked Questions (FAQ)

Q1: What is specific yield in the context of this formula?
A: Specific yield refers to the volume of water that a saturated aquifer releases from storage per unit surface area per unit decline in water table.

Q2: Why is the coefficient 16 used in the formula?
A: The coefficient 16 represents the recommended specific yield norm for sandy alluvium areas as established through hydrological studies.

Q3: What are typical values for water level fluctuation in sandy alluvium?
A: Water level fluctuations typically range from 0.5 to 5 meters depending on seasonal variations and extraction patterns.

Q4: How accurate is this estimation method?
A: This method provides a reliable estimate for preliminary assessments, though site-specific conditions may require additional calibration.

Q5: Can this formula be applied to other soil types?
A: This formula is specifically designed for sandy alluvium areas. Different coefficients would be needed for other soil types with different specific yield characteristics.