Influence of Hydrological Model Selection on Simulation of Moderate and Extreme Flow Events: A Case Study of the Blue Nile Basin

Table 4

Statistical measures of model performance for flow extremes.

Metric	AWBM	IHACRES	SAC	SIMHYD	TANK
Maximum flow in each year
(m^3/s)	1882.10	2022.53	1943.30	5371.12	2613.39
(%)	0.44	2.80	10.17	62.57	−21.81
Minimum flow in each year
(m^3/s)	75.35	149.41	161.23	150.55	124.06
(%)	−9.18	−98.63	−100.00	−99.54	−78.61
Extreme events greater than one-third of the observed peak high flow mean
(m^3/s)	2133.59	1972.62	1978.95	2705.44	1808.53
(%)	−10.89	5.49	−5.59	7.66	−5.81
Extreme events less than one-third of the observed low flow mean
(m^3/s)	300.82	413.04	780.03	504.00	311.20
(%)	−13.57	17.73	94.54	28.22	67.02
Extreme events greater than the 95th percentile of the observed flow
(m^3/s)	1638.19	2926.47	2237.11	3629.58	2326.94
(%)	−0.19	31.00	12.12	29.74	24.19
Extreme events less than the 5th percentile of the observed flow
(m^3/s)	208.70	251.36	535.34	306.96	108.75
(%)	−15.27	−27.78	96.99	37.68	57.13