Groundwater Recharge
Estimate annual groundwater recharge from precipitation, runoff coefficient, and evapotranspiration using the water balance method.
Inputs
Results
Annual Recharge
110 mm/yr
Recharge (% of Precip)
13.8%
How to Use This Calculator
- Enter Annual Precipitation, Runoff Coefficient, and Annual Evapotranspiration.
- Review Annual Recharge (mm/yr) and Recharge (% of Precip).
- Use Recharge Rate (m/yr) and Surface Runoff (mm/yr) to inform your decision.
- Use the chart to visualize the results and explore different scenarios by adjusting inputs.
Formula
GWR = P - ET - (C × P)Related Calculators
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