Table 10 Statistical characteristics of the conditional PDFs of flooding duration and volume under different peak flow return periods
From: Bivariate hydrologic risk analysis for the Xiangxi River in Three Gorges Reservoir Area, China
Flooding variables | Index | Initial | Return periods of peak flow (year) | |||
|---|---|---|---|---|---|---|
10 | 20 | 50 | 100 | |||
Duration | Mean | 6.55 | 7.44 | 7.51 | 7.55 | 7.57 |
Std | 2.30 | 2.32 | 2.33 | 2.33 | 2.33 | |
Kurtosis | 1.72 | 1.51 | 1.47 | 1.45 | 1.44 | |
Skewness | 1.04 | 0.95 | 0.94 | 0.93 | 0.93 | |
Volume | Mean | 934.21 | 1658.09 | 1814.52 | 1913.47 | 1947.16 |
Std | 622.80 | 682.97 | 735.76 | 765.90 | 775.58 | |
Kurtosis | 5.05 | 2.74 | 1.85 | 1.41 | 1.28 | |
Skewness | 1.87 | 1.43 | 1.25 | 1.15 | 1.12 | |