Table 4 Simulation results of estimated regional quantiles, RMSE and corresponding 90% error bounds values
Region | Distribution | Return period (year) | F | q(F) | RMSE | Error bound (mm) | |
|---|---|---|---|---|---|---|---|
Lower | Upper | ||||||
1 | Gumbel | 5 | 0.8 | 1.129 | 0.014 | 1.046 | 1.170 |
10 | 0.9 | 1.347 | 0.032 | 1.263 | 1.481 | ||
20 | 0.95 | 1.526 | 0.057 | 1.514 | 1.596 | ||
50 | 0.98 | 1.721 | 0.072 | 1.608 | 1.739 | ||
70 | 0.985 | 1.876 | 0.084 | 1.758 | 1.924 | ||
80 | 0.987 | 2.039 | 0.094 | 1.982 | 2.145 | ||
100 | 0.999 | 2.275 | 0.105 | 2.239 | 2.303 | ||
2 | Gumbel | 5 | 0.8 | 1.134 | 0.077 | 1.027 | 1.243 |
10 | 0.9 | 1.632 | 0.148 | 1.522 | 1.801 | ||
20 | 0.95 | 1.859 | 0.165 | 1.839 | 1.954 | ||
50 | 0.98 | 2.102 | 0.174 | 2.01 | 2.227 | ||
70 | 0.985 | 2.846 | 0.203 | 2.621 | 2.981 | ||
80 | 0.987 | 3.64 | 0.218 | 3.105 | 3.764 | ||
100 | 0.999 | 4.023 | 0.237 | 3.978 | 4.135 | ||
3 | GEV | 5 | 0.8 | 1.079 | 0.115 | 0.960 | 1.092 |
10 | 0.9 | 1.923 | 0.197 | 1.799 | 2.163 | ||
20 | 0.95 | 2.754 | 0.243 | 2.548 | 2.936 | ||
50 | 0.98 | 3.628 | 0.266 | 3.332 | 3.847 | ||
70 | 0.985 | 4.507 | 0.279 | 4.395 | 4.715 | ||
80 | 0.987 | 5.706 | 0.285 | 5.389 | 5.902 | ||
100 | 0.999 | 7.656 | 0.301 | 7.459 | 7.829 | ||