Pleistocene river system

The 3D model shows the Pleistocene river system typical for the Polish lowlands. This model was prepared using LIDAR-based DEMs from the Malaspina Glacier (Alaska), the Knik River valley (Alaska), and the Warta River (Poland). The input DEM data were transformed and mosaicked into the final model with a spatial resolution of 2x2 meters. The topography of the modelled surface is presented as a combination of the grayscale hillshaded map, red relief image map and RGB composite hillshaded map. Note that the spatial and temoral scale of transition between the three fluvial environments, represented by sandur, braided river and meandering river, are reduced in comparision to recent natural examples of the river systems observed in Arctic and sub-Arctic regions.