Possible Recharge in Clayey Alluvium Areas Based on Known Norms of Specific Yield Calculator

Formula Used:

\[ R = (6 \times h \times A) - D_G \]

Water Level Fluctuation (h):

Meter

Watershed Area (A):

Square Meter

Gross Water Draft (D_G):

Cubic Meter per Second

Possible Recharge (R):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is the Possible Recharge Formula?

The Possible Recharge formula estimates the potential water recharge in clayey alluvium areas based on specific yield norms. It calculates the gross recharge minus natural recharge using water level fluctuation, watershed area, and gross water draft parameters.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ R = (6 \times h \times A) - D_G \]

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 changes, watershed characteristics, and water extraction to estimate potential recharge capacity in clayey alluvium formations.

3. Importance of Possible Recharge Calculation

Details: Accurate recharge estimation is crucial for sustainable water resource management, groundwater modeling, and planning water extraction activities in clayey alluvium areas.

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 clayey alluvium?
A: Specific yield refers to the amount of water that can be drained by gravity from a saturated soil or rock. In clayey alluvium, specific yield values are typically lower due to finer particle size.

Q2: Why is the coefficient 6 used in the formula?
A: The coefficient 6 represents the known norms of specific yield for clayey alluvium areas, derived from empirical studies and regional hydrogeological characteristics.

Q3: How accurate is this estimation method?
A: This method provides a reasonable estimation for preliminary assessments but should be verified with field measurements and detailed hydrogeological studies for critical applications.

Q4: What factors can affect the accuracy of the calculation?
A: Factors include seasonal variations, land use changes, irrigation practices, and the actual specific yield characteristics of the local geology.

Q5: Can this formula be used for other soil types?
A: This specific formula with coefficient 6 is designed for clayey alluvium areas. Different coefficients would be needed for sandy, loamy, or other soil types.