Small Baseline Subset Interferometric Sar Technique for Spatiotemporal Analysis of the Regent Landslides, Sierra Leone

Monitoring ground surface deformation is one key for an early warning system to mitigate against landslide damages. In this study, the SBAS-InSAR technique was applied to analyze forty-seven SLC Sentinel-1A C-band SAR datasets acquired in the interferometric wide-swath (IW) mode for the detection of...

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Bibliographic Details
Published inIGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium pp. 1986 - 1989
Main Authors Kursah, Matthew Biniyam, Wang, Yong
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2019
Subjects
Alarm systems
Landslide prediction
Monitoring
Rain
Regent landslide event
SBAS-InSAR technique
Strain
Surface deformation
Synthetic aperture radar
Terrain factors
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Summary:Monitoring ground surface deformation is one key for an early warning system to mitigate against landslide damages. In this study, the SBAS-InSAR technique was applied to analyze forty-seven SLC Sentinel-1A C-band SAR datasets acquired in the interferometric wide-swath (IW) mode for the detection of the time-series surface deformation leading to the Regent landslide events in 2017, Sierra Leone. The potential landslide sites were also identified in the area. It is argued that if the monitoring program using the SBAS-InSAR technique were in place in 2017, an early warning of the imminent slope failure could have been given some days before the landslide events occurred on 14 August 2017.
ISSN:2153-7003
DOI:10.1109/IGARSS.2019.8899096