Radius of Influence Calculator

Calculate Radius of Influence





Formula

The formula to calculate the Radius of Influence (RoI) is:

\[ RoI = b \cdot \sqrt{\frac{K}{2N}} \]

Where:

What is Radius of Influence?

A radius of influence is defined as the maximum distance at which drawdowns can be detected with usual measures. It is a critical parameter in hydrogeology and water resource management to understand the impact area around a pumping well or other water extraction system.

Example Calculation

Let's assume the following values:

Using the formula to calculate the Radius of Influence (RoI):

\[ RoI = b \cdot \sqrt{\frac{K}{2N}} = 10 \cdot \sqrt{\frac{0.0001}{2 \times 0.01}} = 10 \cdot \sqrt{0.005} \approx 0.71 \text{ meters} \]

The Radius of Influence (RoI) is approximately 0.71 meters.