作者
Roberto Tomás, José Ignacio Pagán, José A Navarro, Miguel Cano, José Luis Pastor, Adrián Riquelme, María Cuevas-González, Michele Crosetto, Anna Barra, Oriol Monserrat, Juan M Lopez-Sanchez, Alfredo Ramón, Salvador Ivorra, Matteo Del Soldato, Lorenzo Solari, Silvia Bianchini, Federico Raspini, Fabrizio Novali, Alessandro Ferretti, Mario Costantini, Francesco Trillo, Gerardo Herrera, Nicola Casagli
发表日期
2019/7/14
期刊
Remote Sensing
卷号
11
期号
14
页码范围
1675
出版商
MDPI
简介
This work describes a new procedure aimed to semi-automatically identify clusters of active persistent scatterers and preliminarily associate them with different potential types of deformational processes over wide areas. This procedure consists of three main modules: (i) ADAfinder, aimed at the detection of Active Deformation Areas (ADA) using Persistent Scatterer Interferometry (PSI) data; (ii) LOS2HV, focused on the decomposition of Line Of Sight (LOS) displacements from ascending and descending PSI datasets into vertical and east-west components; iii) ADAclassifier, that semi-automatically categorizes each ADA into potential deformational processes using the outputs derived from (i) and (ii), as well as ancillary external information. The proposed procedure enables infrastructures management authorities to identify, classify, monitor and categorize the most critical deformations measured by PSI techniques in order to provide the capacity for implementing prevention and mitigation actions over wide areas against geological threats. Zeri, Campiglia Marittima–Suvereto and Abbadia San Salvatore (Tuscany, central Italy) are used as case studies for illustrating the developed methodology. Three PSI datasets derived from the Sentinel-1 constellation have been used, jointly with the geological map of Italy (scale 1:50,000), the updated Italian landslide and land subsidence maps (scale 1:25,000), a 25 m grid Digital Elevation Model, and a cadastral vector map (scale 1:5,000). The application to these cases of the proposed workflow demonstrates its capability to quickly process wide areas in very short times and a high compatibility with …
引用总数
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