Created from:
1\. [Shuttle Radar Topography Mission](https://www.usgs.gov/centers/eros/science/usgs-eros-archive-digital-elevation-shuttle-radar-topography-mission-srtm-1-arc?qt-science_center_objects=0#qt-science_center_objects) (SRTM) 90m ( 3 arc second ) data.
*Jarvis A., H.I. Reuter, A. Nelson, E. Guevara, 2008, Hole-filled seamless SRTM
data V4, International Centre for Tropical Agriculture (CIAT), available from
http://srtm.csi.cgiar.org.*
2\. Shapefile for Wales obtained from [Edinburgh DataShare](https://datashare.is.ed.ac.uk/handle/10283/2410?show=full)
*Blackwood, Carol. (2017). Wales Country Boundary, [Dataset]. EDINA. https://doi.org/10.7488/ds/1760.*
3\. Initial Processing using [SAGA GIS](http://www.saga-gis.org/en/index.html). Terrain colours added using SAGA GIS terrain map view tool.
4\. Further processing using:
- Custom software - https://github.com/john-davies/lidar-ply
- Meshlab - https://www.meshlab.net/