Possible Recharge in Clayey Alluvial Areas for Maximum Value of Specific Yield Calculator

Formula Used:

\[ R = (8 \times h \times A) - D_G \]

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 clayey alluvial areas by considering water level fluctuation, watershed area, and gross water draft. It provides a calculation for maximum specific yield scenarios.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ R = (8 \times h \times A) - D_G \]

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 calculates potential recharge by multiplying water level fluctuation and watershed area by a factor of 8, then subtracting the gross water draft from the result.

3. Importance of Possible Recharge Calculation

Details: Accurate recharge estimation is crucial for water resource management, groundwater sustainability assessment, and planning water extraction in clayey alluvial areas with maximum specific yield conditions.

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 this context?
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 factor 8 used in the formula?
A: The factor 8 represents the maximum value of specific yield for clayey alluvial areas under optimal conditions.

Q3: What are typical values for water level fluctuation?
A: Water level fluctuation typically ranges from 0.5 to 5 meters in clayey alluvial areas, depending on seasonal variations and extraction patterns.

Q4: How does clayey alluvial soil affect recharge?
A: Clayey alluvial soils have lower permeability but can store significant amounts of water, making recharge calculations specific to these soil conditions important.

Q5: When is this formula most applicable?
A: This formula is specifically designed for clayey alluvial areas where maximum specific yield values are being considered for recharge calculations.