Analysis of subsidence using TerraSAR-X data: Murcia case study

Herrera, Gerardo; Tomás, Roberto; Monells, Dani; Centolanza, Giuseppe; Mallorquí, Jordi J.; Vicente, Fernando; Navarro, Victor D.; López-Sánchez, Juan M.; Sanabria, Margarita; Cano, Miguel; Mulas, J.

doi:10.1016/j.enggeo.2010.09.010

Cited by 71 publications

(48 citation statements)

References 10 publications

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“…Since the LOS displacement sensitivity increases with the radar frequency, the stability thresholds in the X-band (8-12 GHz, 3.1-cm wavelength) have been set within a narrower range, at ±1.5 mm/year or 1.0 mm/year, being compatible with one and 1.5 standard deviation values of CSK PS populations, respectively, for the ascending and descending dataset. These values are also in accordance with stable threshold choices already tested and accepted by the scientific community [5,10,14,39].…”

Section: Psi Datasupporting

confidence: 51%

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Building Deformation Assessment by Means of Persistent Scatterer Interferometry Analysis on a Landslide-Affected Area: The Volterra (Italy) Case Study

et al. 2015

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Abstract:In recent years, space-borne InSAR (interferometric synthetic aperture radar) techniques have shown their capabilities to provide precise measurements of Earth surface displacements for monitoring natural processes. Landslides threaten human lives and structures, especially in urbanized areas, where the density of elements at risk sensitive to ground movements is high. The methodology described in this paper aims at detecting terrain motions and building deformations at the local scale, by means of satellite radar data combined with in situ validation campaigns. The proposed approach consists of deriving maximum settlement directions of the investigated buildings from displacement data revealed by radar measurements and then in the cross-comparison of these values with background geological data, constructive features and on-field evidence. This validation permits better understanding whether or not the detected movements correspond to visible and effective damages to buildings. The method has been applied to the southwestern sector of Volterra (Tuscany region, Italy), which is a landslide-affected and partially urbanized area, through the use of COSMO-SkyMed satellite images as input data. Moreover, we discuss issues and possible misinterpretations when dealing with PSI (Persistent Scatterer Interferometry) data referring to single manufactures and the consequent difficulty of attributing the motion rate to ground displacements, rather than to structural failures.

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Section: Psi Datasupporting

confidence: 51%

“…In particular, several works deal with the use of PS motion rates for detecting displacements in urbanized and cultural heritage sites [14][15][16][17][18][19], as well as for monitoring single urban structures [20,21].…”

Section: Introductionmentioning

confidence: 99%

Building Deformation Assessment by Means of Persistent Scatterer Interferometry Analysis on a Landslide-Affected Area: The Volterra (Italy) Case Study

et al. 2015

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“…Overall, the use of X-band SAR sensors, i.e., COSMO-SkyMed, with high spatial resolution up to 1 meter (ROTH et al 2003;GERNHARDT et al 2010) and short revisiting time improves PSI capability for Vol. 172, (2015) Multi-Temporal Evaluation of Landslide Movements 3061 ground motions detection HERRERA et al 2010;NOTTI et al 2010). X-band radar data turn out to be particularly suited for local detection of landslide processes at small scales, especially in urbanized areas, since the great density of PS point targets in X-band permits to better understand and accurately describe deformation phenomena, entering at the level of the site-specific ground motions investigation.…”

Section: Discussionmentioning

confidence: 99%

Multi-Temporal Evaluation of Landslide Movements and Impacts on Buildings in San Fratello (Italy) By Means of C-Band and X-Band PSI Data

Bianchini

Ciampalini

Raspini

et al. 2014

Pure Appl. Geophys.

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Abstract-This work provides a multi-temporal and spatial investigation of landslide effects in the San Fratello area (Messina province within the Sicily region, Italy), by means of C-band and X-band Persistent Scatterer Interferometry (PSI) data, integrated with in situ field checks and a crack pattern survey. The Sicily region is extensively affected by hydrogeological hazards since several landslides regularly involved local areas across time. In particular, intense and catastrophic landslide phenomena have recently occurred in the San Fratello area; the last event took place in February 2010, causing large economic damage. Thus, the need for an accurate ground motions and impacts mapping and monitoring turns out to be significantly effective, in order to better identify active unstable areas and to help proper risk-mitigation measures planning. The combined use of historical and recent C-band satellites and current X-band Synthetic Aperture Radar sensors of a new generation permits spatially and temporally detection of landslide-induced motions on a local scale and to properly provide a complete multi-temporal evaluation of their effects on the area of interest. PSI ground motion rates are crosscompared with local failures and damage of involved buildings, recently recognized by in situ observations. As a result, the analysis of landslide-induced movements over almost 20 years and the validation of radar data with manufactured crack patterns, permits one to finally achieve a complete and reliable assessment in the San Fratello test site.

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“…More than 50 cm subsidence over 46 days in Westcliff coal mining region of Australia was reported by Ng et al 33 , showing the potential of L-band ALOS PALSAR data; the results were also validated with ground survey. Herrera et al 44 using CPT and TerraSAR-X data while monitoring an urban subsidence in Murcia, Spain, have reported an average rate of subsidence from -5 mm/yr to -35 mm/yr. In another study using CPT, Herrera et al 37 while monitoring metal mining area in Murcia, have demonstrated that deformation values with DInSAR (using ERS 1/2 and Envisat images) on comparison with the topographical levelling network measurements of the same period gave an absolute average difference of 0.7 cm with a standard deviation of 0.5 cm.…”

Section: Assessment Of Sar Interferometric Measurementsmentioning

confidence: 99%

“…The results showed that high accuracy could be obtained using this technique to monitor the deformation of a large area. Another DInSAR technique, the coherent pixel technique (CPT) was applied for the study of displacements 37,43,44 . This technique is based on the pixel selection criterion, a coherence threshold and non-restricted generation of the interferometric pairs.…”

Section: Analyses On Applications Of Dinsar In Surface Subsidencementioning

confidence: 99%

Application of DInSAR in Mine Surface Subsidence Monitoring and Prediction

Ishwar¹,

Kumar²

2017

Current Science

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Most studies of surface subsidence and its impacts have been done on underground coal mines. There are few studies on the occurrences of surface subsidence in underground metal mines, particularly in India, even though the fundamental subsidence engineering principles are the same for both coal and metal mines. The current ground-based measurement techniques monitor ground subsidence on a particular point and are time-consuming as well as costly. To study hardrock mine surface deformation due to underground mining, new and effective technologies must be adopted. The spaceborne subsidence monitoring has emerged as a better technique after the development of satellite radar interferometry. The technology is fast improving with enhanced synthetic aperture radar (SAR) sensors on different spaceborne platforms. Differential interferometric SAR techniques are widely used to measure the topographic profile and surface deformations. This article reviews the applications of spaceborne SAR interferometric techniques in the prediction and monitoring of surface subsidence due to underground mining.

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Analysis of subsidence using TerraSAR-X data: Murcia case study

Cited by 71 publications

References 10 publications

Building Deformation Assessment by Means of Persistent Scatterer Interferometry Analysis on a Landslide-Affected Area: The Volterra (Italy) Case Study

Building Deformation Assessment by Means of Persistent Scatterer Interferometry Analysis on a Landslide-Affected Area: The Volterra (Italy) Case Study

Multi-Temporal Evaluation of Landslide Movements and Impacts on Buildings in San Fratello (Italy) By Means of C-Band and X-Band PSI Data

Application of DInSAR in Mine Surface Subsidence Monitoring and Prediction

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