OCEAN HEALTH
Mangrove Extent (MGE)
Standing area of protected and replanted mangrove — the coast's storm shield and a blue-carbon engine second only to seagrass. Loss here flags clearance for ponds or development before the water shows it.
Threshold Bands
| Band | Range | State |
|---|---|---|
| Expanding | trend ↑ | OK |
| Stable | trend → | WARN |
| Retreating | trend ↓ | CRIT |
Formula
Mapped canopy area of intact mangrove forest from satellite classification and drone survey.