Table 6 Comparison of RMSE and AIC values for joint distributions through different copulas
From: Bivariate hydrologic risk analysis for the Xiangxi River in Three Gorges Reservoir Area, China
Copula | RSME | AIC | ||||
|---|---|---|---|---|---|---|
Peak-volume | Peak-duration | Volume-duration | Peak-volume | Peak-duration | Volume-duration | |
Ali-Mikhail-Haq | 0.0610 | 0.0514 | 0.0707 | − 277.6384 | − 294.7895 | − 262.9122 |
Cook-Johnson | 0.0665 | 0.2907 | 0.0873 | − 269.0263 | − 121.5381 | − 241.8286 |
Gumbel-Hougaard | 0.0312 | 0.0550 | 0.0589 | − 344.8576 | − 288.0178 | − 281.1828 |
Frank | 0.0304 | 0.0541 | 0.0559 | − 347.4879 | − 289.7032 | − 286.3915 |