Table 3.
In percentage of the total number of pixels, (a) distribution of the pixels in each of the three trend classes, and (b) convergences and divergences for the trend results among the three NOAA AVHRR data sets for the average annual NDVI. Acronyms: ++ positive/positive, -- negative/negative, 00 no change/no change, +- positive/negative, +0 positive/no change, and -0 negative/no change.
| (a) | PAL | GIMMS | FASIR |
|---|---|---|---|
| Positive changes | 19.3 | 13.3 | 26.7 |
| Negative changes | 5.0 | 2.9 | 6.0 |
| No changes | 78.4 | 86.6 | 67.3 |
| (b) | Convergences | Divergences | ||||||
|---|---|---|---|---|---|---|---|---|
| ++ | -- | 00 | total | +- | 0+ | 0- | Total | |
|
| ||||||||
| PAL vs. GIMMS | 3.4 | 0.3 | 65.2 | 68.9 | 0.8 | 24.2 | 6.3 | 31.3 |
| PAL vs. FASIR | 10.9 | 2.8 | 57.5 | 71.2 | 0.1 | 23.5 | 5.2 | 28.8 |
| GIMMS vs. FASIR | 4.4 | 0.3 | 57.5 | 62.2 | 1.1 | 29.6 | 7.1 | 37.8 |