Flume DEMs - Otemma Outdoor Flume Experiments (2021)

<p><strong>Flume DEMs - Otemma Outdoor Flume Experiments (2021)</strong></p> <p>We installed two parallel flumes (A and B) in the vicinity of the forefield of the Otemma Glacier (45&deg;56&#39;04.9&quot;N 7&deg;24&#39;46.1&quot;E), and attempted to&nbsp;mimic the hydraulic and environmental conditions of the tributaries found on the Otemma floodplain.&nbsp;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.&nbsp;The images were processed in Agisoft Metashape (v. 1.5.5), and we produced&nbsp;Digital Elevation Models (DEMs) at spatial resolutions of 0.0005 m.&nbsp;The&nbsp;coordinate system was the CH1903 LV03.&nbsp;</p> <p>&nbsp;</p> <p>Data format and information:</p> <ul> <li>mmdd_DEM_A, for flume A / mmdd_DEM_B, for flume B</li> <li>Spatial resolution: 0.0005 m</li> <li>Coordinate system:&nbsp;CH1903 LV03</li> <li>DEMs are not corrected for systematic errors and water-air interface refraction.&nbsp;</li> <li><em>Two orthomosaics (0715_Orthomosaic_A and&nbsp;0715_Orthomosaic_B) are included for reference.&nbsp;</em></li> </ul> <p>&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;</p>