This protocol was used to process LIDAR data acquired over 3-m transects of forest floor, using an Apple iPad Pro 2022 app entitled 3D Scanner App in “LIDAR Advanced” mode set to the smallest possible maximum depth (30 cm) and resolution (5 mm), as documented in "Soil Surface Roughness in Temperate Forest During SMAPVEX19-22" by Walker et al. (2024).