Matthew D. Wilson

Learning with Spaceborne LiDAR for Enhancement of Bare-Earth Digital Elevation Models from Global Data

Abstract. Bare-earth Digital Terrain Models (DTMs) are fundamental to geospatial applications, yet publicly accessible global elevation products are Digital Surface Models (DSMs) with vertical accuracies of 4–15 m RMSE at 30 m or coarser resolution. Airborne LiDAR achieves sub-metre accuracy but remains costly and spat...