Uncertainty of Flood Forecasting Based on Radar Rainfall Data Assimilation

Table 3

Comparison of flood hydrograph prediction using different rainfall data assimilation methods. MPF is measured peak flow and FPF is forecast peak flow.

Method	Flood event	MPF (m/s)	FPF (m/s)	NS	PRE (%)	PTD (h)
UC	050408	313.3	58.4		81.36	1
	050429	618.2	167.6		72.89	32
	050609	187.9	96.8		48.48	2
	060411	232.7	157		32.53	15
	060508	240.9	108.1		55.13	10
	060627	189.6	76.6		59.6	4
	060705	310.9	134.8		56.64	1
	060726	147.3	113.4	0.2	23.01	8
KLM	050408	313.3	275.6	0.83	12.03	2
	050429	618.2	562.2	0.87	9.06	1
	050609	187.9	166.7	0.9	11.28	1
	060411	232.7	214.7	0.9	7.74	1
	060508	240.9	224.1	0.9	6.97	1
	060627	189.6	168.5	0.84	11.13	2
	060705	310.9	262.7	0.82	15.5	2
	060726	147.3	136.1	0.86	7.6	1
AVG	050408	313.3	283.3	0.79	9.58	1
	050429	618.2	651.5	0.86	5.39	5
	050609	187.9	155.1	0.88	17.46	2
	060411	232.7	196.2	0.83	15.69	0
	060508	240.9	212.2	0.85	11.91	1
	060627	189.6	155.2	0.44	18.14	4
	060705	310.9	250.5	0.65	19.43	1
	060726	147.3	108.2	0.22	26.54	0
OPT	050408	313.3	311.7	0.89	0.51	2
	050429	618.2	615.4	0.9	0.45	1
	050609	187.9	187.6	0.9	0.16	3
	060411	232.7	231.7	0.89	0.43	2
	060508	240.9	240.3	0.9	0.25	2
	060627	189.6	188.6	0.89	0.53	1
	060705	310.9	307.1	0.89	1.22	2
	060726	147.3	144.6	0.9	1.83	3
VAR	050408	313.3	313.3	0.9	0.54	0
	050429	618.2	618.2	0.91	0.36	0
	050609	187.9	187.9	0.89	0.85	1
	060411	232.7	232.7	0.9	1.16	2
	060508	240.9	240.9	0.9	0.23	1
	060627	189.6	189.6	0.89	0.63	1
	060705	310.9	310.9	0.89	1.21	2
	060726	147.3	147.3	0.74	0.47	0
SWI	050408	313.3	312.5	0.89	0.26	1
	050429	618.2	616.6	0.89	0.26	0
	050609	187.9	187.9	0.9	0.34	2
	060411	232.7	207.2	0.87	10.96	1
	060508	240.9	240.6	0.89	0.12	0
	060627	189.6	188.6	0.89	0.53	1
	060705	310.9	307.2	0.89	1.19	1
	060726	147.3	146.8	0.9	0.34	2