1970 OS 27 10K: Northern Ireland Historical Shoreline Change Analysis

Historical shoreline positions for the Northern Ireland coastline, analyzed from the early 1800s onward. The dataset was produced by Ulster University using Ordnance Survey maps and aerial imagery, processed with the Digital Shoreline Analysis System (DSAS) to calculate rates of change. It provides statistics like Net Shoreline Movement and Linear Regression Rate at 25-meter intervals.

Use Cases

• Modeling coastal erosion risk based on historical rate-of-change statistics.
• Visualizing shoreline retreat and accretion patterns over decadal time periods.
• Assessing the impact of coastal management strategies using Net Shoreline Movement data.
• Conducting geospatial analysis of coastline geometry changes mentioned in the description.

Strengths

• Analysis spans a long temporal range, from the early 1800s onward.
• Rate-of-change statistics are calculated at a high spatial resolution of 25-meter intervals.
• Data is derived from authoritative sources including Ordnance Survey maps and aerial imagery.
• Provides multiple statistical measures of change (e.g., Net Shoreline Movement, Linear Regression Rate).

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

Ulster University, via OpenDataNI.

Collection Method

Historical analysis of 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 11:23:24.100535; freshness should be verified.

Geography

Northern Ireland coastline.