Table 7 Comparison of univariate, bivariate return periods for flood characteristics (year)
From: Bivariate hydrologic risk analysis for the Xiangxi River in Three Gorges Reservoir Area, China
T | Peak (m3/s) | Volume (m3/s day) | Duration (day) | \(T_{PV}^{AND}\) | \(T_{PD}^{AND}\) | \(T_{DV}^{AND}\) | \(T_{PD}^{OR}\) | \(T_{DV}^{OR}\) | \(T_{PV}^{OR}\) | \(\mathop T\limits^{ - }_{DV}\) | \(\mathop T\limits^{ - }_{DP}\) | \(\mathop T\limits^{ - }_{PV}\) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
5 | 689.54 | 1313.48 | 8.25 | 7.66 | 16.18 | 8.80 | 2.96 | 3.49 | 3.71 | 6.54 | 9.56 | 6.06 |
10 | 857.38 | 1730.89 | 9.60 | 21.19 | 59.78 | 25.78 | 5.46 | 6.20 | 6.54 | 16.83 | 32.61 | 14.70 |
20 | 1026.38 | 2173.89 | 10.87 | 65.75 | 229.22 | 84.03 | 10.46 | 11.35 | 11.79 | 49.39 | 119.82 | 40.48 |
50 | 1256.75 | 2809.50 | 12.51 | 338.46 | 1395.49 | 452.35 | 25.46 | 26.46 | 26.99 | 243.62 | 710.43 | 186.97 |
100 | 1438.39 | 3333.42 | 13.74 | 1255.64 | 5532.43 | 1710.98 | 50.46 | 51.51 | 52.07 | 889.62 | 2791.36 | 662.29 |