OCEAN HEALTH
Ocean Health Index (OHI)
The League's headline index of the condition of the waters it monitors. A single number meant for the dashboard, never a substitute for the sub-indices beneath it.
Threshold Bands
| Band | Range | State |
|---|---|---|
| Healthy | ≥ 90 | OK |
| Stressed | 80–90 | WARN |
| Degraded | < 80 | CRIT |
Formula
Weighted composite of water-quality, biodiversity, and pressure sub-indices across monitored waters.