Download: https://www.pi.ingv.it/wp-content/pdf/BancheDati/StromboliLidar/Stromboli_DSM_2023.zip

Authors

Marina Bisson¹, Roberto Gianardi¹, Riccardo Civico², Paolo Madonia³, Tullio Ricci², Claudia Spinetti⁴

1. Istituto Nazionale di Geofisica e Vulcanologia, Pisa, Italy
2. Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma 1, Roma, Italy
3. Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Catania, Italy
4. Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Nazionale Terremoti, Roma, Italy

Abstract

The digital elevation models reproduce the 3D topography of a territory at different spatial resolutions depending on the acquisition technique. In active and densely populated volcanic areas, the updated digital topographies are fundamental for mapping and quantifying the morphological changes generated by the eruptive events. They are also fundamental for modelling volcanic phenomena and related hazards. In this work, the high-resolution Digital Elevation Model of Stromboli volcano updated to 4^th August 2023 is presented. It has been obtained by elaborating more than 109×10⁶ 3D points (x,y,z) acquired by the Airborne Lidar survey and validated through GNSS data acquired from dedicated field campaigns and the Stromboli monitoring network. The surface of the volcano, including natural and anthropic elements, is reconstructed with an elevation matrix at spatial resolution of 50 cm. The obtained model has a vertical accuracy of 8 cm. Nowadays, this model is the most updated and accurate digital 3D topography of the entire island and represents relevant data for the scientific community in case of hazard assessment studies.