Flume DEMs - Otemma Outdoor Flume Experiments (2021)

<strong>Flume DEMs - Otemma Outdoor Flume Experiments (2021)</strong> We installed two parallel flumes (A and B) in the vicinity of the forefield of the Otemma Glacier (45°56'04.9"N 7°24'46.1"E), and attempted to mimic the hydraulic and environmental conditions of the tributaries found on the Otemma floodplain. We produced a photogrammetric dataset of the flumes at the experiment time-scale. We collected daily images of the flumes with a DSLR Sony Alpha 7 III camera equipped with a Sigma Art 50mm F1.8 lens. The images were processed in Agisoft Metashape (v. 1.5.5), and we produced Digital Elevation Models (DEMs) at spatial resolutions of 0.0005 m. The coordinate system was the CH1903 LV03. Data format and information: mmdd_DEM_A, for flume A / mmdd_DEM_B, for flume B Spatial resolution: 0.0005 m Coordinate system: CH1903 LV03 DEMs are not corrected for systematic errors and water-air interface refraction. <em>Two orthomosaics (0715_Orthomosaic_A and 0715_Orthomosaic_B) are included for reference. </em>