Figures & data
Figure 1 Original DEM of the selected flat region.
Figure 2 Corrected DEM by the IMQ method.
Figure 3 Channel networks derived from a) the IMQ method, b) the TCT method, and c) the TPZ method.
Figure 4 Heterogeneity analyses of flow direction rasters using (a) Nc and (b) Nd .
Figure 5 Contours of hydrological distance derived from a) the IMQ method, b) the TCT method an c) the TPZ method.
Figure 6 Histograms of Compactness Index for a) CSA = 100 cells and b) CSA = 30 cells.
Figure 7 Drainage density of first-order channels derived from a) the reference regions, b) the IMQ method, c) the TCT method, and d) the TPZ method.
Figure 8 Heterogeneity analysis of flow direction rasters for different a) DCN slopes and b) α values.
Figure 9 Histograms of Compactness Index for different DCN slopes and different α values.
Figure 10 Drainage density of first-order channels associated with different DCN slopes and different α values.
