OCEAN HEALTH
Kelp Canopy Area (KCA)
Floating canopy area of monitored kelp forest. Marine heatwaves and unchecked urchin grazing strip it to barren in a season; recovery is a key cold-water restoration target.
Threshold Bands
| Band | Range | State |
|---|---|---|
| Lush | ≥ plan | OK |
| Thinning | 50–100% plan | WARN |
| Barren | < 50% plan | CRIT |
Formula
Surface canopy area of standing kelp forest from satellite and aerial classification.