1964 OS 27 10K: Northern Ireland Historical Shoreline Change Analysis

Historical shoreline positions for the entire Northern Ireland coastline, analyzed from Ordnance Survey maps and aerial imagery dating back to the early 1800s. Ulster University processed the data using the Digital Shoreline Analysis System (DSAS) to calculate rates of change at 25-meter intervals. The dataset includes statistics like Net Shoreline Movement and Linear Regression Rate, providing a dynamic picture of coastal evolution over annual to decadal periods.

Use Cases

• Modeling coastal erosion risk based on historical rate-of-change statistics like End Point Rate (EPR) and Linear Regression Rate (LRR).
• Identifying areas of shoreline retreat or accretion using spatially displayed change data collected at 25m intervals.
• Visualizing long-term coastal evolution since the early 1800s using collated Ordnance Survey maps and aerial imagery.

Strengths

• Analysis covers the entire Northern Ireland coastline.
• Derived from Ordnance Survey maps and aerial imagery dating back to the early 1800s.
• Rate-of-change statistics are calculated at 25-meter intervals along the coast.
• Includes multiple statistical measures like Net Shoreline Movement and Weighted Linear Regression.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the Northern Ireland focus.

Provenance

Source

OpenDataNI

Collection Method

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

Time Range

Early 1800s to date of analysis

Freshness

Last updated 2026-03-18 11:23:58.733493; freshness should be verified.

Geography

Northern Ireland coastline