OSNI Largescale Boundaries: Northern Ireland District Electoral Areas (1993)

1993 District Electoral Areas (DEAs) for Northern Ireland are provided as a polygon dataset extracted from the Ordnance Survey of Northern Ireland (OSNI) Largescale database. The data has been topologically cleansed and attributed to create a seamless, open dataset suitable for mapping and analysis. It is published under an open government license for use in desktop and web mapping applications.

Use Cases

• Mapping electoral constituency boundaries for historical or comparative analysis based on the 1993 DEA polygons.
• Performing spatial joins with demographic or voting data using the attributed and cleansed boundary geometries.
• Creating base maps for web or desktop GIS applications focused on Northern Ireland's administrative units.
• Studying the evolution of electoral districts by using this fixed 1993 snapshot as a reference layer.

Strengths

• Data is topologically cleansed, indicating processing for seamless spatial analysis.
• Derived from the authoritative OSNI Largescale database, suggesting a high-quality source.
• Has a fixed temporal reference (1993), providing a consistent historical snapshot.

Limitations

• Metadata is incomplete: row counts, column names, specific update dates, and author details are unavailable.
• The dataset represents a single, historical year (1993) and may not reflect current boundaries.
• Platform descriptions are highly repetitive, indicating potential gaps in detailed documentation.

Provenance

Source

Ordnance Survey of Northern Ireland (OSNI) Largescale database.

Collection Method

Extracted, topologically cleansed, and attributed from the source database.

Time Range

1993

Freshness

null

Geography

Northern Ireland