Calculadora de Índice de Estrés Hídrico — Fórmula
## Water Stress Index
The water stress index measures how much of a region's available water is being used. Higher ratios indicate greater pressure on water resources.
### Formula
**Water Stress = Total Withdrawals / Renewable Supply**
### Thresholds
- **< 0.10**: Low stress
- **0.10 - 0.20**: Low-to-medium stress
- **0.20 - 0.40**: Medium-to-high stress
- **> 0.40**: High stress (water scarcity)
- **> 0.80**: Extremely high stress
The water stress index measures how much of a region's available water is being used. Higher ratios indicate greater pressure on water resources.
### Formula
**Water Stress = Total Withdrawals / Renewable Supply**
### Thresholds
- **< 0.10**: Low stress
- **0.10 - 0.20**: Low-to-medium stress
- **0.20 - 0.40**: Medium-to-high stress
- **> 0.40**: High stress (water scarcity)
- **> 0.80**: Extremely high stress
Ejemplo Resuelto
A region withdraws 30 km³/year from a renewable supply of 75 km³/year.
- Stress ratio = 30 / 75 = 0.400
- Stress percentage = 40.0%
- Remaining supply = 75 - 30 = 45 km³/year
- At 40%, this region is at the high stress threshold