Publication Date:
2024-05-06
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MDPI Open Access Journals
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Journals Remote Sensing Volume 16 Issue 9 10.3390/rs16091610
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Open AccessArticle
Landslide Mapping in Calitri (Southern Italy) Using New Multi-Temporal InSAR Algorithms Based on Permanent and Distributed Scatterers
by Nicola Angelo Famiglietti 1ORCID,Pietro Miele 1,*ORCID,Marco Defilippi 2,Alessio Cantone 2,Paolo Riccardi 2,Giulia Tessari 2 andAnnamaria Vicari 1ORCID
1
Istituto Nazionale di Geofisica e Vulcanologia, Sezione Irpinia, 83035 Grottaminarda, Italy
2
SarmapSA, 6987 Caslano, Switzerland
*
Author to whom correspondence should be addressed.
Remote Sens. 2024, 16(9), 1610; https://doi.org/10.3390/rs16091610
Submission received: 20 March 2024 / Revised: 23 April 2024 / Accepted: 28 April 2024 / Published: 30 April 2024
(This article belongs to the Special Issue Landslide Inventory Mapping and Monitoring Using Remote Sensing Techniques)
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Abstract
Landslides play a significant role in the morpho-evolutional processes of slopes, affecting them globally under various geological conditions. Often unnoticed due to low velocities, they cause diffuse damage and loss of economic resources to the infrastructure or villages built on them. Recognizing and mapping mass movements is crucial for mitigating economic and social impacts. Conventional monitoring techniques prove challenging for large areas, necessitating resource-intensive ground-based networks. Leveraging abundant synthetic aperture radar (SAR) sensors, satellite techniques offer cost-effective solutions. Among the various methods based on SAR products for detecting landslides, multi-temporal differential interferometry SAR techniques (MTInSAR) stand out for their precise measurement capabilities and spatiotemporal evolution analysis. They have been widely used in several works in the last decades. Using information from the official Italian landslide database (IFFI), this study employs Sentinel-1 imagery and two new processing chains, E-PS and E-SBAS algorithms, to detect deformation areas on the slopes of Calitri, a small town in Southern Italy; these algorithms assess the cumulated displacements and their state of activity. Taking into account the non-linear trends of the scatterers, these innovative algorithms have helped to identify a dozen clusters of points that correspond well with IFFI polygons.
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Published
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1610
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OST5 Verso un nuovo Monitoraggio
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JCR Journal
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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article
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