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Authors: Baldi, P.*
Fabris, M.*
Marsella, M.*
Monticelli, R.*
Achilli, V.*
Title: Application of Digital Terrain Model to volcanology
Title of journal: Annals of Geophysics
Series/Report no.: 4-5/49 (2006)
Publisher: Istituto Nazionale di Geofisica e Vulcanologia, Editrice Compositori
Issue Date: Dec-2006
Keywords: DTM
Vulcano island
Morphological Changes
Abstract: Three-dimensional reconstruction of the ground surface (Digital Terrain Model, DTM), derived by airborne GPS photogrammetric surveys, is a powerful tool for implementing morphological analysis in remote areas. High accurate 3D models, with submeter elevation accuracy, can be obtained by images acquired at photo scales between 1:5000-1:20000. Multitemporal DTMs acquired periodically over volcanic area allow the monitoring of areas interested by crustal deformations and the evaluation of mass balance when large instability phenomena or lava flows have occurred. The work described the results obtained from the analysis of photogrammetric data collected over the Vulcano Island from 1971 to 2001. The data, processed by means of the Digital Photogrammetry Workstation DPW 770, provided DTM with accuracy ranging between few centimeters to few decimeters depending on the geometric image resolution, terrain configuration and quality of photographs.
Appears in Collections:Papers Published / Papers in press
04.08.07. Instruments and techniques
Annals of Geophysics

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