In this video tutorial, we demonstrate how to produce canopy height models (CHMs) or normalized digital surface models on-demand on OpenTopography.
Canopy height models are a measurement of the height of trees, buildings, and other structures above the ground topography. This product is used in a variety of forestry applications including tracking vegetation and trees in a forest over time, calculating biomass, and estimating leaf area index.
A canopy height model is calculated by subtracting the digital terrain model (DTM) from the digital surface model (DSM). A DTM refers to the bare earth, and a DSM measures the elevation of the top of a landscape including vegetation and buildings.
opentopography.org/ | OpenTopography facilitates community access to high-resolution, Earth science-oriented topography data and related tools and resources
17 янв 2022
