OSNI Open Data: Northern Ireland Land Area Boundary Polygon

OSNI Largescale NI Outline is a polygon dataset representing the land area of Northern Ireland. The data was derived from OSNI Largescale sources, topologically cleansed, and attributed to create a seamless dataset. It is provided by the Government Digital Service under an Open Government Licence.

Use Cases

• Create base maps for Northern Ireland based on the official land area polygon.
• Perform regional administrative or environmental analyses based on the seamless boundary data.
• Integrate the boundary as a reference layer in web or desktop mapping applications based on the available service formats.

Strengths

• Data has been topologically cleansed to ensure a seamless polygon dataset.
• Available in multiple geospatial formats (KML, ESRI SHAPE, GEOJSON, WMS) for broad tool compatibility.

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

Government Digital Service

Collection Method

Derived from OSNI Largescale data, then topologically cleansed and attributed.

Time Range

null

Freshness

null

Geography

Northern Ireland