SCShores: Time-Series of Shorelines from Spanish Sandy Beaches
1,721 shorelines over 5 years derived from a citizen monitoring programme on 5 Spanish sandy beaches (Atlantic and Mediterranean), in GeoJSON format.
- Size
- 9.3 MB
- Format
- GeoJSON
- License
- CC-BY-4.0
- Access
- Open Access
- Source
- Zenodo (record 8056415)
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Challenge
How much does each beach's shoreline move over the multi-year series, and does the daily waterline on macro-tidal Atlantic beaches (Cadiz, Cies, Agrelo) respond to the tide far more than on the near-tideless Mediterranean sites (Samarador, Arenal d'en Tem)?
- Where to start
- Load the GeoJSON with GeoPandas: each feature is a MultiPoint waterline for one site on one date, with the tide level in elevation_m. Reproject a beach to UTM, then turn each shoreline into a single cross-shore position (e.g. project its centroid onto the PCA minor axis) to build a metre-scale movement time-series. Correlate that position with elevation_m, then repeat for an Atlantic and a Mediterranean beach.
- What to share
- A shoreline-position time-series (and date-coloured map) for at least one beach, plus a table comparing tidal range and the tide–shoreline correlation across Atlantic vs Mediterranean sites.
💬 Discuss this dataset, ask questions and share your results in its discussion thread. Challenges are open-ended — there's no single right answer.