DEM Resolution Impact on the Estimation of the Physical Characteristics of Watersheds by Using SWAT

<table class="table-group" id="tab9"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">DEM</td><td class="align_center">Area (km<sup>2</sup>)</td><td class="align_center">Area slope</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">LDD</td><td class="align_center">3,829.36</td><td class="align_center">1.47</td></tr><tr><td class="align_left">ASTER</td><td class="align_center">3,867.88</td><td class="align_center">2.97</td></tr><tr><td class="align_left">SRTM</td><td class="align_center">3,861.54</td><td class="align_center">1.24</td></tr><tr><td class="align_left">DWR</td><td class="align_center">4734.31</td><td class="align_center">—</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Size of area extracted from DEM of Nam-Yang subbasin.

Advances in Civil Engineering

tab9

Table 9

Table 9: DEM Resolution Impact on the Estimation of the Physical Characteristics of Watersheds by Using SWAT 