Table 1.
Correlation matrix of predictor variables. Linear correlations (|r| ≥ 0.89) are shaded gray.
| Predictor | Coastal | Blue | Green (B3) | Yellow | Red | Red-Edge | NIR1 | NIR2 | NDVI | NDSI | NDWI | LP | SD | DTS | Texture |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
||||||||||||||
| (B1) | (B2) | (B4) | (B5) | (B6) | (B7) | (B8) | |||||||||
| Blue (B2) | 0.96 | ||||||||||||||
| Green (B3) | 0.87 | 0.88 | |||||||||||||
| Yellow (B4) | 0.93 | 0.96 | 0.93 | ||||||||||||
| Red (B5) | 0.87 | 0.95 | 0.79 | 0.94 | |||||||||||
| Red Edge (B6) | 0.42 | 0.46 | 0.75 | 0.57 | 0.40 | ||||||||||
| NIR1 (B7) | 0.21 | 0.27 | 0.56 | 0.38 | 0.26 | 0.95 | |||||||||
| NIR2 (B8) | 0.21 | 0.29 | 0.55 | 0.39 | 0.29 | 0.93 | 0.99 | ||||||||
| NDVI | −0.06 | −0.02 | 0.29 | 0.09 | −0.03 | 0.79 | 0.86 | 0.86 | |||||||
| NDSI | −0.65 | −0.69 | −0.41 | − 0.70 | −0.80 | 0.02 | 0.15 | 0.10 | 0.36 | ||||||
| NDWI | −0.21 | −0.28 | −0.52 | −0.39 | −0.30 | −0.89 | −0.94 | −0.96 | −0.92 | −0.07 | |||||
| LP | −0.21 | −0.09 | −0.07 | −0.05 | 0.02 | 0.20 | 0.29 | 0.31 | 0.30 | 0.05 | −0.30 | ||||
| SD | 0.24 | 0.12 | 0.11 | 0.09 | 0.00 | −0.16 | −0.25 | −0.28 | −0.37 | −0.05 | 0.34 | −0.50 | |||
| DTS | 0.24 | 0.12 | 0.10 | 0.09 | −0.01 | −0.18 | −0.28 | −0.31 | −0.39 | −0.06 | 0.36 | −0.50 | 0.99 | ||
| Texture | 0.03 | 0.04 | −0.18 | −0.02 | 0.10 | −0.48 | −0.5 | −0.48 | −0.61 | −0.31 | 0.53 | −0.05 | 0.11 | 0.14 | |
| DEM | −0.17 | −0.05 | −0.06 | −0.03 | 0.06 | 0.16 | 0.27 | 0.31 | 0.28 | 0.00 | −0.34 | 0.48 | −0.54 | −0.53 | −0.15 |
Note: LP = landscape position; SD = surface depression; DTS = distance to stream; NDVI = Normalized Difference Vegetation Index; NDSI = Normalized Difference Soil Index; NDWI = Normalized Difference Water Index; DEM = Digital Elevation Model.