Impact of DEM Resolution and Spatial Scale: Analysis of Influence Factors and Parameters on Physically Based Distributed Model

Table 7

Comparison results of the nested catchment.

Flood time	Relative error of peak discharge (%)						NSE coefficient
	1962081406	10.0	9.5			−13.1	−11.8	0.81	0.81			0.48	0.42
1963052208	18.5	17.9			10.8	13.2	0.68	0.67			0.75	0.69
1964072300	18.4	16.8			11.2	10.1	0.92	0.90			0.93	0.90
1964092206	29.9	28.5			−3.1	−2.8	0.71	0.72			0.72	0.65
1977070900	−18.1	−17.2	−15.2	−14.8	−18.8	−18.1	0.55	0.55	0.56	0.55	0.45	0.44
1980063000	4.2	4.4	−8.3	−8.5	5.4	5.3	0.77	0.78	0.61	0.60	0.76	0.80
1981071408	−62.5	−62.3	−42.5	−42.4	3.1	3.0	0.65	0.63	0.80	0.79	0.88	0.85
1982073102	33.2	33.5	13.0	14.2	−7.9	−9.2	0.70	0.71	0.82	0.80	0.86	0.80
1983081020	5.2	4.2	3.3	3.4			0.81	0.82	0.72	0.72
1983100308	−6.2	−6.3	2.2	2.3	−5.8	−5.2	0.44	0.42	0.61	0.55	0.74	0.69
1983101708	20.5	20.0	12.8	12.5			0.64	0.63	0.58	0.55
1984090817	6.8	6.3			−8.7	−8.2	0.83	0.80			0.85	0.81
1985091412	−6.2	−6.0	−12.8	−12.8			0.72	0.73	0.74	0.73
1988080909	−30.5	−30.2	−22.5	−22.4			0.48	0.49	0.52	0.51
1989081408	−22.5	−22.0	−13.6	−13.5			0.62	0.63	0.81	0.82
1996080208	19.5	19.3	8.5	8.2	−2.2	−11.2	0.78	0.76	0.91	0.85	0.76	0.73
1998081312	−10.2	−11.0	2.5	2.8	−7.6	−8.3	0.81	0.80	0.80	0.77	0.83	0.85
2000071220	33.3	33.0	1.2	1.5	−40.5	−41.4	0.66	0.67	0.82	0.81	0.75	0.75
Average	2.41	2.13	−5.49	−5.35	−5.94	−6.5	0.70	0.70	0.72	0.70	0.75	0.72