2. Materials and Methods
2.1. The Scanned Tree and Its Location
2.2. Input Data
2.4. Computing Vertices of Cylinders as a Base for Tree Shadow Projections
2.5. Projecting the Cylinder Shadow onto the Ground and Calculating Energy Loss Due to Shading
2.6. Computing Ellipsoids to Simulate Leaves
- Improvement of the leaf simulations. Leaf parameters vary between tree species, within the tree crown and throughout the growing season [15,16,17]. Thus, to generate realistic shadow projections of tree crowns, it is crucial to simulate leaves as realistically as possible. At present, our model simulates leaves by adding a single ellipsoid to the end of branches of a radius of less than 0.5 cm, and the ellipsoids increase in their radius each month to simulate leaf growth. We will replace these ellipsoids with more realistic leaf-like polygons, taking also their spatial distribution within tree crowns into account.
- Validation of the results generated by the model by comparing them with on-site light measurements. In case of discrepancies, the model needs to be adapted accordingly.
Conflicts of Interest
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