Integration of ground-based laser scanner and aerial digital photogrammetry for topographic modelling

• Published in: GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY
• Main Authors: Pesci, A., Fabris, M., Conforti, D., Loddo, F., Baldi, P., Anzidei, M.
• Other Authors: Pesci, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia, Fabris, M.; Università di Bologna, Dipartimento di Fisica, Settore Geofisica., Conforti, D.; Optech Inc, Loddo, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia, Baldi, P.; Università di Bologna, Dipartimento di Fisica, Settore Geofisica., Anzidei, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia, Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia, Università di Bologna, Dipartimento di Fisica, Settore Geofisica., Optech Inc, Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2007
• Subjects: Vesuvio; TLS; aerial digital photogrammetry; models; integration; 04. Solid Earth::04.03. Geodesy::04.03.06. Measurements and monitoring; Journal of Glaciology
• Online Access: http://hdl.handle.net/2122/2076; https://doi.org/10.1016/j.jvolgeores.2007.02.005

This work deals with the integration of different surveying methodologies for the definition of very accurate Digital Terrain Models (DTM) and/or Digital Surface Models (DSM): in particular, the aerial digital photogrammetry and the terrestrial laser scanning were used to survey the Vesuvio volcano, allowing the total coverage of the internal cone and surroundings (the whole surveyed area was about 3 km×3 km). The possibility to reach a very high precision, especially from the laser scanner data set, allowed a detailed description of the morphology of the volcano. The comparisons of models obtained in repeated surveys allow a detailed map of residuals providing a data set that can be used for detailed studies of the morphological evolution. Moreover, the reflectivity information, highly correlated to materials properties, allows for the measurement and quantification of some morphological variations in areas where structural discontinuities and displacements are present. Published 123-138 JCR Journal partially_open