RT journal article T1 SCShores: A comprehensive shoreline dataset of Spanish sandy beaches from a citizen-science monitoring programme A1 González Villanueva, Rita A1 Soriano González, Jesús A1 Alejo, Irene A1 Criado Sudau, Francisco A1 Plomaritis, Theocharis A1 Fernàndez Mora, Àngels A1 Benavente González, Javier A1 Río Rodríguez, Laura del A1 Nombela, Miguel Ángel A1 Sánchez García, Elena A2 Ciencias de la Tierra A2 Física Aplicada AB Sandy beaches are ever-changing environments, as they experience constant reshaping due to the external forces of tides, waves, and winds. The shoreline position, which marks the boundary between water and sand, holds great significance in the fields of coastal geomorphology, coastal engineering, and coastal management. It is crucial to understand how beaches evolve over time, but high-resolution shoreline datasets are scarce, and establishing monitoring systems can be costly. To address this, we present a new dataset of the shorelines of five Spanish sandy beaches located in contrasting environments that is derived from the CoastSnap citizen-science shoreline monitoring programme. The use of citizen science within environmental projects is increasing, as it allows both community awareness and the collection of large amounts of data that are otherwise difficult to obtain. This dataset includes a total of 1721 individual shorelines composed of 3 m spaced points alongshore, accompanied by additional attributes, such as elevation value and acquisition date, allowing for easy comparisons. Our dataset offers a unique perspective on how citizen science can provide reliable datasets that are useful for management and geomorphological studies. PB Copernicus Publications SN 1866-3516 YR 2023 FD 2023 LK http://hdl.handle.net/10498/31468 UL http://hdl.handle.net/10498/31468 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 10-nov-2026