Dataset of Shoreline Positions for Sandy Beaches of England and Wales Derived using Neural Network classifier

Abstract This article presents a dataset of coastlines positions, comprising annual sandy shoreline detections at approximately ten-metre resolution for England and Wales from 1999 to 2023. Coastlines are inherently dynamic, and monitoring these changes over time enables the quantification of the extent and severity of coastal change at specific locations. This study provides observations of the coastline of England and Wales from 1999 to 2023, identified from satellite imagery using the CoastSat toolkit. The toolkit was modified to export coastline positions in geographic coordinate formats (GeoJSON and tabular files) rather than its default transect-based distance output. To meet the toolkit’s requirement for regions of interest (ROIs) under 100 km², the entire coastline was divided into 276 ROIs. Extracted coastline points were corrected for tidal influence. Analysis of the dataset revealed significant changes between 1999 and 2023 in different regions across the UK.