Table 4 Summary of the statistics, POD, FAR and HSS, used in this study. They are computed from counts (letters a–d) in a 2 × 2 contingency table (N = 1078 in TI case, N = 1148 in NM case). a SPD rainfall > threshold, VnGP rainfall > threshold; b SPD rainfall > threshold, VnGP rainfall ≤ threshold; c SPD rainfall ≤ threshold, VnGP rainfall > threshold; and d SPD rainfall ≤ threshold, VnGP rainfall ≤ threshold
From: Evaluation of satellite precipitation products over Central Vietnam
Name | Formula | Perfect score | Worst score |
|---|---|---|---|
POD | a/(a + c) | 1 | 0 |
FAR | b/(a + b) | 0 | 1 |
HSS | 2(ad − bc)/((a + c)(c + d) + (a + b)(b + d)) | 1 | − ∞ |