CoastSnap

CoastSnap is a citizen science app for coastal monitoring and shoreline mapping that uses repeat smartphone photos to track how beaches and coastlines change over time. Users capture images from fixed photo points, such as official CoastSnap cradles or adapted setups, and record the photo time so the data can be compared consistently across visits.

The app supports community-based beach observation and helps generate coastal data for scientists studying shoreline change, erosion, recovery, storms, sea-level rise, and human impacts. By combining repeated photos with photogrammetry, CoastSnap turns everyday coastal snapshots into a structured dataset that can be used to analyse coastline change and support long-term monitoring.

Users can browse the CoastSnap map to explore reports from different project locations around the world, including regional stations in multiple countries. The app is designed for people interested in the coast who want a straightforward way to contribute to environmental research and coastal data collection through a smartphone.

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