Post-failure evolution analysis of a rainfall-triggered landslide by multi-temporal interferometry SAR approaches integrated with geotechnical analysis

TLDR: In this paper, a dataset of 34 TerraSAR-X StripMap images (October 2013-October 2014) has been processed by two persistent scatterers interferometry (PSI) techniques -Coherent Pixel Technique-Temporal Sublook Coherence (CPT-TSC) and Small Baseline Subset (SBAS) -to study the evolution of a slow-moving landslide which occurred on February 23, 2012 in the Papanice hamlet (Crotone municipality, southern Italy) and induced by a significant rainfall event (185 mm in three days

About: This article is published in Remote Sensing of Environment.The article was published on 2017-01-01 and is currently open access. It has received 73 citations till now. The article focuses on the topics: Landslide & Slope stability analysis.

Figures

Figure 5. a) Localization of Papanice rain gauge. In blue rectangle the area interested by the 2012 landslide events. 198 Daily (blue columns) and cumulative (red line and red numbers) rainfall values for: b) year 2012; c) February 2012; d) 199 19-25 February 2012. 200

Figure 12 - a) Displacement rate map obtained with the CPT-TSC algorithm for the time interval 2008-2010. In the 416 purple rectangle, a zoom-in of the area of interest (b). Landslides have been reported in brown-dashed line. The points 417 S-TSC and TSC1 have been selected for the time series analysis (Figure 13). Modified from Confuorto et al. (2015). 418

Table 1 - Annual rainfall (mm) from 1998 to 2012 recorded at Papanice rain gauge. 190

Figure 16 - a) Displacement rate map obtained with the SBAS method for the time interval 2013–2014. In the purple 465 rectangle, a zoom-in of the area of interest (b). Landslides have been reported in brown-dashed line. The points S-SBAS 466 and SBAS1 have been selected for the time series analysis (Figure 17). 467

Frequently asked questions

Q1. What are the contributions in "Post-failure evolution analysis of a rainfall-triggered landslide" ?

In this work, a dataset of 34 34 TerraSAR-X StripMap images ( October 2013-October 2014 ) has been processed by two PSI techniques Coherent 35 Pixel Technique-Temporal Sublook Coherence ( CPT-TSC ) and Small Baseline Subset ( SBAS ) in order to study the 36 evolution of a slow-moving landslide which occurred on February 23, 2012 in the Papanice hamlet ( Crotone 37 municipality, southern Italy ) and induced by a significant rainfall event ( 185 mm in three days ). In conclusion, the authors showed that the integration of geotechnical and remote sensing approaches can be seen 46 as a best practice to support stakeholders to design remedial works.