OSNI Open Data: 10-Meter Digital Terrain Model for Sheets 201-250

A Digital Terrain Model (DTM) provides a grid of regularly spaced points of known height to create a 3D image of the land surface. This download contains OSNI 10k sheet numbers 201-250, published by the Government Digital Service under the OGL-UK-3.0 license. The dataset is described as large and may take time to download.

Use Cases

• Generate 3D visualizations of the land surface based on the described grid of elevation points.
• Model hydrological flow and flood risk based on the described digital terrain model.
• Perform terrain analysis for civil engineering or environmental planning based on the described elevation data.
• Augment computer vision models with geospatial context based on the described 3D land surface data.

Strengths

• Data is provided for a specific, defined geographic area (OSNI 10k sheet numbers 201-250).
• The description explicitly states the data is a regularly spaced grid, suggesting a structured format.
• Published under an open government license (OGL-UK-3.0), facilitating reuse.

Limitations

• Row count, file size, and column-level documentation are unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.
• The description notes the dataset is large and may take time to download, indicating potential access challenges.

Provenance

Source

Government Digital Service

Geography

Likely Northern Ireland (inferred from OSNI - Ordnance Survey Northern Ireland and 'Open Data NI' tags).