Publication Date:
2017-04-04
Description:
Several geophysical processes, involving crustal deformation, can be studied and monitored by means
of the comparison of multitemporal Digital Terrain Models (DTM) and/or Digital Surface Models (DSM):
deformation patterns, displacements, surface variations, volumes involved in mass movements and other
physical features can be observed and quantified providing useful information on the geomorphological
variations (Butler et al., 1998; Kaab and Funk, 1999; Mora et al., 2003; van Westen and Lulie Getahun,
2003; Pesci et al., 2004; Fabris and Pesci, 2005; Baldi et al., 2005; Pesci et al., 2007; Baldi et al., 2008).
Many techniques, including GPS kinematic methodology (Beutler et al., 1995), digital aerial and
terrestrial photogrammetry (Kraus, 1998), airborne and terrestrial laser scanning (Csatho et al., 2005), remote
sensors on space-borne platforms, both optical and radar stereo option, satellite SAR interferometry (Fraser
et al., 2002), are suitable surveying methods for the acquisition of precise and reliable 3D or 2.5D geoinformation.
Actually, the technique to capture the evolution of a natural process, rapidly changing the
terrain morphology of an area like a volcanic eruption or a rock mass collapse, taking a time of a few
seconds or several hours (or more) is the digital photogrammetry. Scientific software exist to manage and
process stereoscopic photogrammetric images, requiring professional operators but, recently, more friendly
applications are developed to facilitate and make fast but efficient the analysis.
Description:
INGV - Istituto Nazionale di
Geofisica e Vulcanologia
Description:
Published
Description:
1.10. TTC - Telerilevamento
Description:
open
Keywords:
geophysical processes
;
crustal deformation
;
Digital Terrain Models
;
stereoscopic photogrammetric images
;
04. Solid Earth::04.03. Geodesy::04.03.06. Measurements and monitoring
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
report
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