UAV-derived multitemporal orthomosaics and DTMs of the Basento River across varying flow regimes

This dataset provides multitemporal high-resolution, georeferenced UAV-derived orthomosaics and Digital Terrain Models (DTMs) of a ~3 km reach of the Basento River (southern Italy), located in the middle section of the basin. The surveyed reach is an area frequently affected by flooding, characterized by accelerated erosion processes and intense sediment transport, resulting in a high hydro-geomorphological hazard. The dataset is based on six UAV surveys conducted between 2019 and 2024, designed to capture river morphology conditions under different flow regimes following the pluvial hydrological regime of the Basento River, which typically exhibits peak discharges in autumn–winter and lower flows during summer. UAV flights were carried out at 50-75 m above ground level (AGL), allowing the generation of very high spatial resolution products suitable for detailed hydro-geomorphological analyses. Surveys were carried out during medium–high flow conditions (2019, 2021, 2022), low flow (2020), high flow (2023), and medium–low flow (2024). The resulting orthomosaics and DTMs are georeferenced in the spatial reference system EPSG:32633 - WGS 84 / UTM zone 33N, projected and exhibit variable spatial resolutions: approximately 1 cm and 6 cm (2019, 2020, 2021), 3 cm and 9 cm (2022), 5 cm and 6 cm (2023), and 6 cm and 9 cm (2024), respectively. The dataset is organised into six directories, each named according to the survey year (e.g., Basento2019, Basento2020). Each directory provides the corresponding .tif, .tfw, .prj files for orthomosaics and DTMs. CitationsDataset users are kindly invited to cite as follows: La Salandra, M., & Colacicco, R. (2025). UAV-derived multitemporal orthomosaics and DTMs of the Basento River across varying flow regimes (1.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.18094358