Remote Sensing and Geoinformatics
The image illustrates beech mortality under drought stress. The historic landscape park Klein-Glienicke in southwest Berlin in July 2020. Phantom 4M (quadrocopter) color-infrared (CIR) image data (top left) with 10 cm spatial resolution, derived Canopy Height Model (CHM) (top right), watershed model derived from CHM (bottom left), and crown-based damage level (4 categories) calculated from CIR data via a "Convolutional Neural Network". Clearly visible are severely damaged and completely dead beech crowns.