Advances in Meteorology / 2016 / Article / Tab 5

Research Article

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

Table 5

Comparison results under different DEM resolutions and channel thresholds.

Flood timeRelative error of peak dischargeNSE coefficient
250 m500 m1,000 m351,000 m7.5250 m500 m1,000 m351,000 m7.5

1962081406−12.5−13.0−13.1−14.00.480.450.480.46
196305220811.011.110.810.50.710.720.750.74
19640723009.911.011.210.50.950.920.930.94
19641002085.54.96.66.50.850.820.830.83
19650709047.57.88.18.20.880.890.840.85
1966072200−10.8−10.5−11.8−12.00.720.750.700.70
1967071108−8.2−8.5−9.0−9.10.750.760.700.71
197508050810.111.211.511.50.800.750.780.77
197509190114.315.014.615.50.590.600.590.58
1977070900−17.2−18.0−18.8−19.10.470.450.450.46
19800630005.65.55.45.80.810.800.760.75
1982073102−8.1−9.1−7.9−7.80.890.880.860.85
1983100308−5.1−5.2−5.8−6.00.720.730.740.74
1984090817−8.5−8.8−8.7−9.00.870.860.850.86
19940702207.26.56.66.80.850.830.860.85
19950811143.13.83.23.50.880.880.860.85
1996080208−2.1−2.0−2.2−2.20.750.750.760.75
1998081312−7.7−7.5−7.6−7.80.860.860.830.84

Average−0.33−0.32−0.38−0.460.770.760.750.75

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