DiGBcoast v1.0 documents three decades of coastal change across mainland Great Britain, England, Scotland, and Wales. The dataset was produced by the British Geological Survey using Landsat and Sentinel-2 optical satellite imagery from 1984 to 2022.
Use Cases
- Analyze coastal erosion rates using instantaneous waterline positions over the 38-year period.
- Model shoreline change by comparing tidally corrected Mean Sea Level shorelines across different years.
- Assess regional vulnerability by mapping coastline position changes for Great Britain, including the Isle of Wight and Anglesey.
- Validate coastal management models with supranational data covering England, Scotland, and Wales.
Strengths
- Covers a 38-year temporal range from 1984 to 2022.
- Supranational coverage includes mainland Great Britain and major islands.
- Derived from multiple publicly available optical satellite missions (Landsat-5,8 and Sentinel-2).
- Includes both instantaneous waterlines and tidally corrected shorelines.
Limitations
- Coastal position is derived from optical imagery, which can be affected by cloud cover and atmospheric conditions.
- The dataset focuses on Great Britain, limiting direct applicability to other global coastlines.
- As a derived product, accuracy is contingent on the underlying satellite data processing and tidal correction methods.
Provenance
- Source
- British Geological Survey (BGS)
- Collection Method
- Produced using publicly available optical Landsat-5,8 and Sentinel-2 satellite imagery.
- Time Range
- 1984 to 2022
- Freshness
- Last updated in March 2026.
- Geography
- Great Britain mainland (England, Scotland, Wales), including the Isle of Wight and Anglesey.