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Authors: Pesci, A.* 
Fabris, M.* 
Conforti, D.* 
Loddo, F.* 
Baldi, P.* 
Anzidei, M.* 
Title: Integration of ground-based laser scanner and aerial digital photogrammetry for topographic modelling
Issue Date: 23-Feb-2007
Series/Report no.: 3-4/162 (2007)
DOI: 10.1016/j.jvolgeores.2007.02.005
Keywords: Vesuvio; TLS; aerial digital photogrammetry; models; integration
Subject Classification04. Solid Earth::04.03. Geodesy::04.03.06. Measurements and monitoring 
Abstract: 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.
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