Table 3.
Collinearity among the monthly values of the normalised difference vegetation index
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb |
35.82 |
|
|
|
|
|
|
|
|
|
|
| Mar |
15.40 |
31.65 |
|
|
|
|
|
|
|
|
|
| Apr |
5.09 |
6.05 |
10.50 |
|
|
|
|
|
|
|
|
| May |
1.74 |
2.04 |
2.31 |
4.27 |
|
|
|
|
|
|
|
| Jun |
1.13 |
1.23 |
1.27 |
1.53 |
3.75 |
|
|
|
|
|
|
| Jul |
1.06 |
1.10 |
1.13 |
1.25 |
2.09 |
11.21 |
|
|
|
|
|
| Aug |
1.11 |
1.16 |
1.18 |
1.32 |
2.21 |
7.43 |
24.85 |
|
|
|
|
| Sep |
1.59 |
1.75 |
1.81 |
2.33 |
4.36 |
3.75 |
3.06 |
4.55 |
|
|
|
| Oct |
2.54 |
2.66 |
2.80 |
4.26 |
4.67 |
1.97 |
1.57 |
1.88 |
7.74 |
|
|
| Nov |
6.11 |
4.97 |
5.50 |
7.58 |
2.87 |
1.37 |
1.20 |
1.33 |
2.87 |
8.89 |
|
| Dec | 31.42 | 12.00 | 9.80 | 4.95 | 1.79 | 1.22 | 1.14 | 1.20 | 1.75 | 2.79 | 9.14 |
Eight-day-interval MODIS-derived series of values were converted to monthly composites and collinearity calculated as the variance inflation factor. Values higher than 10 are indicative of high collinearity.