Bivariate hydrologic risk analysis for the Xiangxi River in Three Gorges Reservoir Area, China

Environmental Systems Research

Table 9 The flooding risks in Xiangxi river under different peak-volume scenarios (%)

Service time	10 years			20 years			50 years			100 years
Designed flow (m³/s)	1000	1200	1500	1000	1200	1500	1000	1200	1500	1000	1200	1500
Volume (m³/s)
500	43.60	22.34	7.67	68.19	39.70	14.76	94.29	71.76	32.92	99.67	92.03	55.00
1000	43.55	22.32	7.67	68.13	39.65	14.74	94.27	71.71	32.88	99.67	92.00	54.95
1500	41.39	21.19	7.28	65.64	37.90	14.03	93.08	69.61	31.46	99.52	90.76	53.03
2000	31.44	16.06	5.51	52.99	29.54	10.71	84.85	58.32	24.67	97.70	82.63	43.25
2500	18.98	9.67	3.31	34.36	18.41	6.52	65.09	39.86	15.51	87.81	63.83	28.61
3000	10.34	5.26	1.80	19.61	10.25	3.57	42.06	23.68	8.69	66.43	41.76	16.63
3500	5.52	2.81	0.96	10.74	5.54	1.91	24.72	13.27	4.71	43.33	24.78	9.21
4000	2.99	1.52	0.52	5.89	3.02	1.04	14.08	7.37	2.57	26.18	14.20	5.08