Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/10910
Authors: Cianflone, Giuseppe* 
Tolomei, Cristiano* 
Brunori, Carlo Alberto* 
Monna, Stephen* 
Dominici, Rocco* 
Title: Landslides and Subsidence Assessment in the Crati Valley (Southern Italy) Using InSAR Data
Issue Date: 2018
Series/Report no.: 2/ 8 (2018)
DOI: 10.3390/geosciences8020067
URI: http://hdl.handle.net/2122/10910
Abstract: In this work, we map surficial ground deformations that occurred during the years 2004–2010 in the Crati Valley (Southern Italy). The valley is in one of the most seismically active regions of the Italian peninsula, and presents slope instability and widespread landslide phenomena. We measured ground deformations by applying the small baseline subset (SBAS) technique, a multi-temporal synthetic aperture radar interferometry (InSAR) methodology that is used to process datasets of synthetic aperture radar (SAR) images. Ground displacements are only partially visible with the InSAR technique. Visibility depends on the geometry of the acquisition layout, such as the radar acquisition angle view, and the land use. These two factors determine the backscattering of the reflected signal. Most of the ground deformation detected by InSAR can be attributed to the gravitational mass movements of the hillslopes (i.e., landslides), and the subsidence of the quaternary deposits filling the valley. The movements observed along the valley slopes were compared with the available landslide catalog. We also identified another cause of movement in this area, i.e., ground subsidence due to the compaction of the quaternary deposits filling the valley. This compaction can be ascribed to various sources, such as urban population growth and sprawl, industrial water withdrawal, and tectonic activity.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
geosciences-08-00067-v2.pdf52.61 MBAdobe PDFView/Open
Show full item record

Page view(s)

31
Last Week
0
Last month
4
checked on Jul 21, 2018

Download(s)

14
checked on Jul 21, 2018

Google ScholarTM

Check

Altmetric