/british-columbia-lidar

Lidar point cloud of the small Trail Islands to North of Vancouver

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British Columbia, Canada - Lidar point cloud

This is a point cloud sliced to the small Trail Islands to the North of Vancouver to reduce the data size. The islands have some nice looking topography and their isolated nature creates problems for some interpolation methods, like simple nearest-neighbors.

Lidar point cloud of ground elevation of the Trail Islands.

Summary
File british-columbia-lidar.csv.xz
Size 4.4 Mb
Version v1
DOI https://doi.org/10.5281/zenodo.5881887
License CC-BY
MD5 md5:354c725a95036bd8340bc14e043ece5a
SHA256 sha256:03c6f1b99374b8c00c424c788cb6956bc00ab477244bb69835d4171312714fe1
Source LidarBC
Original license Open Government Licence - British Columbia
Processing code prepare.ipynb

Changes made

These are the changes made to the original dataset.

  • Cut out a section of the original data to focus only on these small islands.
  • Change UTM coordinates to geodetic latitude and longitude (WGS84).
  • Keep only the ground reflection picks.
  • Export to a compressed CSV for easier loading with Pandas.

About this repository

This is a place to format and prepare the original dataset for use in our tutorials and documentation.

We include the source code that prepares the datasets for redistribution by filtering, standardizing, converting coordinates, compressing, etc. The goal is to make loading the data as easy as possible (e.g., a single call to pandas.read_csv or xarray.load_dataset). Whenever possible, the code also downloads the original data (otherwise the original data are included in this repository).

💡 Tip: The easiest way to download this dataset is using Pooch, particularly to download straight from the DOI of a release.

Contributing

See our Contributing Guidelines for information on proposing new datasets and making changes to this repository.

License

All Python source code is made available under the BSD 3-clause license. You can freely use and modify the code, without warranty, so long as you provide attribution to the authors.

Unless otherwise specified, all data files and figures created by the code are available under the Creative Commons Attribution 4.0 License (CC-BY).

See LICENSE.txt for the full text of each license.

The license for the original data is specified in this README.md file.