OSNI Open Data: Digital Terrain Model for Northern Ireland Sheets 201-250

A Digital Terrain Model (DTM) dataset for Northern Ireland, covering sheet numbers 201-250. The data consists of a grid of regularly spaced points of known height, which can be used to create a 3D image of the land surface. The dataset is published by the Land and Property Services (LPS) for OpenData under the Open Government Licence.

Use Cases

• Generate 3D visualizations of the land surface based on the grid of known height points.
• Perform terrain analysis for hydrological modeling or flood risk assessment based on the DTM.
• Support civil engineering and construction planning with accurate elevation data for the covered region.
• Create topographic maps or integrate with other geospatial data like orthophotographs for enhanced analysis.

Strengths

• Provides a structured grid of regularly spaced elevation points, enabling consistent 3D modeling.
• Covers a specific, defined geographic area (sheets 201-250) within Northern Ireland.
• Published under a permissive Open Government Licence for reuse.

Limitations

• The description lacks specific metadata on grid resolution, accuracy, or vertical datum.
• Row count and dataset size are unknown, which may complicate suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Land and Property Services (LPS), Northern Ireland

Collection Method

null

Time Range

null

Freshness

null

Geography

Northern Ireland (specific sheets 201-250)