Abstract
The aim of this article is to review the potentiality and reliability of the integrated usage of global positioning system (GPS), terrestrial laser scanner (TLS), and total station survey measurements in the geomorphologic studies. Test surveys based on these techniques were done in the area of “Tana della Volpe” blind valley and in the adjacent “Monticino” quarry, near Brisighella, Ravenna, Northern Apennines, Italy. Such sites are characterized by peculiar geomorphologic attributes such as the presence of slope, karst, and anthropic forms. We surveyed about 18,000 GPS points and about 42,200,000 TLS points in a total of 22 scans. The processing of the survey’s whole data set produced three distinct arrays of three-dimensional (3D) coordinates complemented by orthometric heights. Moreover, an integrated multistep procedure was implemented based on the following premises: (1) the removal of points not referred to the bare earth surface; (2) the combination of three coordinate sets into a single one referr...
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