Abstract:Spatial resolution of topographic information gives a great influence to distributed runoff analysis. The objective of this study is to evaluate the effects of spatial resolution of DEM (Digital Elevation Model) on flood analysis with main flow channel. Kinematic wave propagation is simulated through real and imaginary river channel data sets having various resolutions. This study reveals that (1) Low resolution of DEM shortens delayed time of peak discharge, because small horizontal curves of river channel ar… Show more
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