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Table 2 The morphometric properties of the Supin–Upper Tons watershed derived from the different datasets

From: Evaluation of different digital elevation models for analyzing drainage morphometric parameters in a mountainous terrain: a case study of the Supin–Upper Tons Basin, Indian Himalayas

Morphometric properties SRTM DEM (90 m) (S90) ASTER GDEM (30 m) (A30) Cartosat-1 DEM (30 m) (C30) Topographical map (1:250,000) Topographical map (1:50,000) ASTER GDEM (resampled 90 m) (A90) Cartosat-1 DEM (resampled 90 m) (C90)
Surveyed (T50A) DEM derived (T50D) Overall Overall
Overall Ice free area Overall Ice free area Overall Ice free area Surveyed (T250A) DEM derived (T250D) Overall Ice free area
Catchment size properties              
Basin area (sq km) 976.20 498.00 977.40 498.90 970.80 497.40 955.22 958.80 978.15 973.40 831.40 1197 1188
Basin perimeter (km) 214.90 266.40 179.00 255.70 188.50 258.20 164.91 164.40 171.02 169.20 170.45 188.7 191.9
Basin length (km) 52.63 52.85 52.50 51.33 51.64 52.80 52.65 54.3 53.5
Main channel length (km) 57.86 47.60 60.37 48.54 60.38 48.34 49.76 62.91 47.21 62.54 47.18 73.35 70.27
Total channel length (km) 1984.12 861.82 3760.92 1822.78 3921.75 1868.98 493.67 1434.91 1733.43 1474.66 619.84 2264.57 2333.84
Total number of stream segments 2457 1036 8314 4141 7832 3717 132 1376 2060 1379 575 2542 2467
Stream order 6 6 7 7 7 6 4 6 6 6 5 6 6
Relief properties              
Absolute relief (m)—maximum 6307 6284 5891 6351 6317 6254 5882
Absolute relief (m)—minimum 1275 1282 1229 1343 1302 1306 1248
Mean relief (m) 3742.05 3939.30 3875.07 3762.95 3931.33 3929.65 3864.58
Relative relief (m) 5032 5002 4662 5008 5015 4948 4634
Relief ratio 95.61 94.65 88.80 97.56 95.61 91.12 86.62
Hypsometric integral 0.53 0.53 0.56 0.49 0.52 0.53 0.56
Shape properties              
Circularity ratio 0.27 0.38 0.34 0.44 0.27 0.42 0.41
Elongation ratio 0.67 0.67 0.67 0.68 0.67 0.72 0.73
Texture properties              
Drainage density (sq km/ km) 2.03 1.73 3.85 3.65 4.04 3.76 0.52 1.50 1.77 1.51 0.75 1.89 1.96
Constant of channel maintenance (sq km/km) 0.49 0.58 0.26 0.27 0.25 0.27 1.93 0.67 0.56 0.66 1.34 0.53 0.51
Stream frequency (no. per sq km) 2.52 2.08 8.51 8.30 8.07 7.47 0.14 1.44 2.11 1.42 0.69 2.12 2.08
Bifurcation ratio 4.58 4.05 4.41 4.06 4.31 5.29 4.85 4.22 4.44 4.24 5.29 4.72 4.56