Figure 4From: Co-seismic landslide topographic analysis based on multi-temporal DEM—A case study of the Wenchuan earthquakeTopographic features of Site III. The roughness (a), hillslope (b), slope aspect (c) distribution of Site III based on pre-earthquake DEM data; and the intersection region of the above three regions (d) by applying thresholds >1.2, between 90 and 270, and 30.Back to article page