Draft: designer to check

What to check
  • Check the Environment Agency statement matches the EA LIDAR dataset page word for word (it is copied from metadata.json).

Map data

OpenStreetMap

Map data © OpenStreetMap contributors, available under the Open Database Licence (ODbL).

Environment Agency LIDAR

Terrain and building heights contain Environment Agency LIDAR data.

© Environment Agency copyright and/or database right 2022. All rights reserved.

Licensed under the Open Government Licence v3.0.

How accurate the 3D map is

Horizontal positions come from OpenStreetMap and Environment Agency LIDAR; terrain height is exaggerated ×8 for readability; buildings are simplified to blocks at LIDAR-measured heights.

Fonts

Both fonts are free, open-licence fonts, self-hosted on this site under the SIL Open Font License 1.1:

  • Newsreader Display (Production Type): headings.
  • Hanken Grotesk (Hanken Design Co.): body text.

Software

  • three.js: 3D rendering. MIT License, © 2010–2026 three.js authors.
  • meshoptimizer: 3D model compression. MIT License, © 2016–2026 Arseny Kapoulkine.
  • Astro: the website framework. MIT License, © 2021 Fred K. Schott.