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Fig. 3 | Open Geospatial Data, Software and Standards

Fig. 3

From: Fusion of high-resolution DEMs for water flow modeling

Fig. 3

Spatially variable overlap width. Top figure presents an overview of fusion source data for the study area and highlights the spatially variable overlap width with transition degree α=1.15° and fusion weights w(x,y). The weights for both fusions (June UAS with October UAS, and resulting UAS-based DEM with lidar) are displayed. Bottom figures capturing enlarged study area A show the spatially variable overlap (right) derived from the absolute differences between DEMs (left, units meters). For the sake of clarity only data related to the fusion of UAS with lidar DEM are shown in the bottom figures. The azimuth of the light source for shaded relief is 270° (clockwise from north) and the altitude angle is 30°

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