Terrestrial laser scanning data of urban trees in Milton Keynes, UK: individual trees and Treegraph model outputs

TLS_point_clouds:

- Data collection: Terrestrial laser scanning data acquired in leaf-off condition in April 2021.

- Scanning instrument: We used a RIEGL VZ-400 with a wavelength of 1550 nm, 0.35 mrad beam divergence and 0.04˚ angular resolution.

- Locations: The data were collected from three urban sites in Milton Keynes, UK: Avebury Blvd (Ave), Dansteed Way (Dan), and Overgate (Ove).

- File information: Each file is an individual tree point cloud in Polygon File Format (.ply), which can be viewed in software such as CloudCompare.

Treegraph_outputs:

- Description: Model outputs from Treegraph for individual trees.

- File naming convention: [TreeID]-[downsample_voxel_length]-[tip_diameter_if_known].*

• *.centres.ply: Skeleton nodes of individual trees.
• *.mesh.ply: Cylinder model of individual trees.
• *.json: Geometrical and topological attributes at varying scales, from internode and branch to the whole tree.
• *.txt: Summary of input parameters, logs of intermediate steps, and a statistical overview of whole-tree structural attributes.