1983 OS 27 10K: Northern Ireland Historical Shoreline Change Analysis

Ulster University and OpenDataNI provide a historical shoreline analysis for the entire Northern Ireland coastline. The dataset quantifies coastal change since the early 1800s using Ordnance Survey maps and aerial imagery, processed with the Digital Shoreline Analysis System (DSAS). It includes rate-of-change statistics like Net Shoreline Movement and Linear Regression Rate, calculated at 25-meter intervals.

Use Cases

• Modeling coastal erosion and accretion rates based on historical shoreline positions.
• Visualizing long-term shoreline change dynamics using the provided geospatial data.
• Assessing the impact of coastal management strategies based on the multi-decadal change analysis.
• Calculating specific rate-of-change statistics like End Point Rate or Weighted Linear Regression for risk assessment.

Strengths

• Analysis covers the entire Northern Ireland coastline.
• Temporal coverage spans from the early 1800s to the present, providing a long-term perspective.
• Rate-of-change statistics are calculated at a consistent 25-meter interval along the coast.
• Derived from authoritative sources including Ordnance Survey maps and aerial imagery.

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.
• Data may reflect geographic bias inherent to the Northern Ireland focus.

Provenance

Source

OpenDataNI, likely based on work by Ulster University.

Collection Method

Historical shoreline analysis based on Ordnance Survey maps and aerial imagery, processed using the ArcGIS Digital Shoreline Analysis System (DSAS).

Time Range

Early 1800s to the date of the source material used.

Freshness

Last updated 2026-03-18 11:24:07.428830; freshness should be verified.

Geography

Northern Ireland coastline.