1965 OS 27 10K: Northern Ireland Historical Shoreline Change Analysis

Historical shoreline position and geometry data for the Northern Ireland coastline, derived from Ordnance Survey maps and aerial imagery. Ulster University produced this dataset using the Digital Shoreline Analysis System (DSAS) to calculate rate-of-change statistics at 25-meter intervals. The analysis provides a dynamic picture of coastal change from the early 1800s onward.

Use Cases

• Calculate rates of shoreline change based on Net Shoreline Movement (NSM) and End Point Rate (EPR) statistics.
• Identify areas of coastal retreat or accretion based on Shoreline Change Envelope (SCE) measurements.
• Model historical coastal dynamics using Linear Regression Rate (LRR) and Weighted Linear Regression Rate (WLR) data.
• Visualize spatial patterns of shoreline change for coastal management planning.

Strengths

• Analysis spans a long temporal range from the early 1800s.
• Rate-of-change statistics were calculated at a high spatial resolution of 25-meter intervals.
• Derived from multiple historical sources including Ordnance Survey maps and aerial imagery.
• Includes multiple statistical measures of change (NSM, SCE, EPR, LRR, WLR).

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 coastline.

Provenance

Source

OpenDataNI

Collection Method

Analysis of historical Ordnance Survey maps and aerial imagery using the ArcGIS Digital Shoreline Analysis System (DSAS).

Time Range

Early 1800s onward

Freshness

Last updated 2026-03-18 11:24:14.404923; freshness should be verified.

Geography

Northern Ireland coastline