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Open AccessArticle

Long-Term Displacement Monitoring of Slow Earthflows by Inclinometers and GPS, and Wide Area Surveillance by COSMO-SkyMed Data

1
Scuola di Ingegneria, Università della Basilicata, Viale dell’Ateneo Lucano, 10, 85100 Potenza, Italy
2
Istituto Superiore per la Protezione e la Ricerca Ambientale (ISPRA), Servizio Geologico d’Italia, Via Brancati, 48, 00144 Roma, Italy
3
Istituto Nazionale di Geofisica e Vulcanologia (INGV), Centro Nazionale Terremoti, Via di Vigna Murata, 605, 00143 Roma, Italy
*
Author to whom correspondence should be addressed.
Geosciences 2020, 10(5), 171; https://doi.org/10.3390/geosciences10050171
Received: 29 February 2020 / Revised: 22 April 2020 / Accepted: 6 May 2020 / Published: 8 May 2020
(This article belongs to the Special Issue Innovative Strategies for Sustainable Mitigation of Landslide Risk)
With reference to two slow earthflows in structurally complex clayey formations of the Italian southern Apennines, this paper shows the results of a long-term displacement monitoring using integrated systems of inclinometers and GPS, and their comparison with PSInSAR data. A fixed-in-place and traversal inclinometer system, first installed in 2004, recorded both the shear displacements along the slip bands, and the internal deformations of the landslide masses. A GPS network of permanent stations and benchmarks, installed in 2006–2007 in 23 strategic points of the slope, allowed for the temporal continuity of displacement monitoring. The two long series of data allowed to evaluate the factor scaling of the PSInSAR COSMO-SkyMed data, although the component of the displacement vector along the line of sight (LOS) was small. PSInSAR data allowed for the monitoring extension to houses and rigid structures that acted as reflectors. The joint data analysis allowed for the comprehension of the main features of the landslides’ kinematics. View Full-Text
Keywords: landslide; monitoring; displacement; inclinometer; GPS; DInSAR landslide; monitoring; displacement; inclinometer; GPS; DInSAR
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Vassallo, R.; Calcaterra, S.; D’Agostino, N.; De Rosa, J.; Di Maio, C.; Gambino, P. Long-Term Displacement Monitoring of Slow Earthflows by Inclinometers and GPS, and Wide Area Surveillance by COSMO-SkyMed Data. Geosciences 2020, 10, 171.

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