Digital Elevation Models (DEMs) are 3D representations of the Earth’s surface and have numerous applications in geomorphology. hydrology and ecology. Structure-from-Motion (SfM) photogrammetry using photographs obtained by unmanned aerial vehicles (UAVs) have been increasingly used for obtaining high resolution DEMs. These DEMs are interpolated from point clouds representing ent... https://www.greenresourcesredux.com/product-category/plastic-translucent-cups/