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Nationwide deformation monitoring with SqueeSAR<span style="position:relative; bottom:0.5em; " class="text">®</span> using Sentinel-1 data
oleh: C. A. Bischoff, A. Ferretti, F. Novali, A. Uttini, C. Giannico, F. Meloni
Format: | Article |
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Diterbitkan: | Copernicus Publications 2020-04-01 |
Deskripsi
<p>Subsidence can now be routinely mapped on a national scale thanks to ESA's Sentinel-1 sensors and advanced scalable SqueeSAR<sup>®</sup> processing. In order to be integrated into existing monitoring programmes, the SqueeSAR<sup>®</sup> datasets can be calibrated with GNSS measurements. The dense spatial coverage of SqueeSAR<sup>®</sup> deformation maps captures local deformation phenomena, and with appropriate calibration, can advance the understanding of regional deformation trends. The regular and reliable SAR image acquisitions by Sentinel-1, as well as significant improvements in the scalability of SqueeSAR<sup>®</sup> processing allow regular updates of deformation maps on a national scale. Filtering the large amount of data for relevant information is achieved by using an algorithm to detect changes in displacement trends.</p>