OSNI Open Data: 10-Meter Digital Terrain Model for Sheets 151-200

A Digital Terrain Model (DTM) from the Ordnance Survey Northern Ireland (OSNI) Open Data platform, consisting of a grid of regularly spaced points of known height. The download contains data for 10k sheet numbers 151-200, which can be used to provide a 3D image of the land surface when combined with other digital data. The dataset is published by the Government Digital Service under an Open Government Licence.

Use Cases

• Generate 3D visualizations of the land surface based on the described DTM grid.
• Conduct terrain analysis for engineering or environmental projects using the height data.
• Create composite landscape models by integrating the DTM with other geospatial data mentioned in the description.

Strengths

• Data is provided by a national mapping agency (OSNI), suggesting authoritative sourcing.
• The description explicitly defines the DTM's structure as a grid of regularly spaced height points.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Ordnance Survey Northern Ireland (OSNI) via Government Digital Service.

Collection Method

null

Time Range

null

Freshness

null

Geography

Northern Ireland (sheets 151 200).