1997 AP: Northern Ireland Shoreline Change Analysis from 1800s

Historical shoreline positions for the entire Northern Ireland coastline, analyzed at 25-meter intervals using Ordnance Survey maps and aerial imagery. The data, processed with the Digital Shoreline Analysis System (DSAS), provides rate-of-change statistics like Net Shoreline Movement and Linear Regression Rate. It was produced by Ulster University and last updated on 2026-03-18.

Use Cases

• Modeling coastal erosion risk based on historical rate-of-change statistics.
• Visualizing shoreline retreat or accretion over time using geospatial data.
• Informing coastal management and planning decisions based on decadal shoreline movement.
• Calibrating predictive models of coastal change using Linear Regression Rate (LRR) data.

Strengths

• Analysis spans a long temporal range from the early 1800s.
• Rate-of-change data is provided at a 25-meter interval resolution.
• Includes multiple statistical measures like Net Shoreline Movement and Weighted Linear Regression Rate.

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.

Provenance

Source

Ulster University, via OpenDataNI.

Collection Method

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

Time Range

Early 1800s onwards.

Freshness

Last updated 2026-03-18 11:23:09.566961; freshness should be verified.

Geography

Northern Ireland coastline.