Table 3.
LiDAR-derived canopy height metrics considered as candidate variables for predictive AGC models [43]
| Metric | Description |
|---|---|
| HMIN | Minimum canopy height |
| HMAX | Maximum canopy height |
| HMEAN | Mean canopy height |
| HMAD | Median canopy height |
| HSD | Standard deviation of canopy height |
| HSKEW | Skewness of canopy height |
| HKURT | Kurtosis of canopy height |
| HVAR | Variance of canopy height |
| HCV | Coefficient of variation canopy height |
| HMODE | Mode canopy height |
| H01TH | 1st percentile of canopy height |
| H05TH | 5th percentile of canopy height |
| H10TH | 10th percentile of canopy height |
| H20TH | 20th percentile of canopy height |
| H25TH | 25th percentile of canopy height |
| H30TH | 30th percentile of canopy height |
| H40TH | 40th percentile of canopy height |
| H50TH | 50th percentile of canopy height |
| H60TH | 60th percentile of canopy height |
| H70TH | 70th percentile of canopy height |
| H75TH | 75th percentile of canopy height |
| H80TH | 80th percentile of canopy height |
| H90TH | 90th percentile of canopy height |
| H95TH | 95th percentile of canopy height |
| H99TH | 99th percentile of canopy height |
| CR | Canopy relief ratio [(HMEAN-HMIN)/(HMAX-HMIN)] |
| COV | Canopy cover (percentage of first return above 1.30 m) |