| RF | Tmin | Tmax | TDS | EC | GWT | |
| RF | 1.0 | |||||
| Tmin | −0.2 | 1.0 | ||||
| Tmax | 0.7 | −0.6 | 1.0 | |||
| TDS | −0.1 | −0.3 | −0.2 | 1.0 | ||
| EC | 0.2 | −0.5 | 0.0 | 0.9 | 1.0 | |
| GWT | 0.2 | −0.9 | 0.3 | 0.4 | 0.7 | 1.0 |