Table 3 Correlation and the improvement in the RMSE of V (%) due to the use of ALS auxiliary information in PPS sampling
From: Inventory of aspen trees in spruce dominated stands in conservation area
| Statistical variable | Stand | ||
|---|---|---|---|
| 1 | 2 | 3 | |
| Correlation | 0.35 | 0.04 | 0.33 |
| Improvement in the RMSE of V (%) | 10.6 | –7.0 | 3.2 |