Structure-from-Motion photogrammetry data of topographic changes from seven erosion plots on Iron Tongue Hill, Tameside, UK, 2018-2019

Using 40-60 ground based photographs per survey Structure-from-Motion (SfM) photgrammetric models have been created. A dense SfM point cloud was generated in Agisoft Photoscan (Metashape). Ground Control Point coordinates were used to scale and georeference the point clouds based upon the dGPS coordinates recorded in the field. The cleaned DEM dense point cloud and 1 mm/pixel resolution orthomosaic were exported as .tif files for later analysis.