Abstract
Detailed analysis of Digital Terrain Models (DTMs), digital imagery, and a discussion of their various applications and derived geothematic products are presented for study areas in two different geological and geomorphological contexts of North West (NW) of Italy. In both cases it has been proposed an integrated approach for geomorphological analysis that put in evidence many advantages of using these new geomatics tools.In the first context, digital geomorphological mapping of high altitude areas of the Aosta Valley (Gran Paradiso and Gran San Bernardo) have been carried out by using photogrammetry and remote sensing on airborne laser scanner data (LiDAR derived DTM) and orthophotos. Suitable results have been obtained for areas of difficult accessibility, with reduced costs and work time compared to traditional field techniques.In the second geomorphological context, high-resolution images of the present topography of the high Piedmont plain (Turin, Asti and Cuneo Provinces) have been used to perform GIS mapping and analysis. Evidences of Quaternary modifications in the hydrographic network have been enhanced, suggesting new geomorphological elements for the reconstruction of the recent geodynamic history of the area.
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