Space-borne radar interferometric mapping of precursory deformations of a dyke collapse, Dead Sea area, Jordan

Closson, Damien; Karaki, Najib Abou; Hansen, Herbert; Derauw, Dominique; Barbier, Christian; Ozer, André

doi:10.1080/01431160210147388

Cited by 41 publications

(28 citation statements)

References 5 publications

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“…7). A Lozenge-Shape Feature (LSF; CLOSSON et al, 2003) became clearly visible over aerial photographs and satellite images from the end of the eighties when the area emerged. In this place, the geometric relation between micro-cliffs angular change direction and the fault mapped by Tapponnier is particularly obvious.…”

Section: Lozenge-shape Feature Outlined From Aerial Photographsmentioning

confidence: 99%

Subsidence and Sinkhole Hazard Assessment in the Southern Dead Sea Area, Jordan

Closson

Karaki

Klinger

et al. 2005

Pure appl. geophys.

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The Dead Sea area is increasingly facing serious subsidence and sinkhole hazards. On March 22, 2000, the dyke of a two-month old major salt evaporation pond, located along the shore of the Lisan Peninsula (Jordan), collapsed over almost two kilometers. The pond was set up over unstable new lands that have been progressively emerging during the last three decades. In one hour, 56 millions m 3 of brine poured out into the northern, natural part of the Sea. Here, we present data suggesting that the drop of the water level, in conjunction with the particular tectonic setting of this area, is at least one of the factors that led to the disaster. We focused our study over the northern part of the Lisan Peninsula and Ghor Al Haditha which are two places undergoing the most intense deformations along the Jordanian Dead Sea coast. We used the results of a static high precision gravimetric survey to detect subsurface cavities in Ghor Al Haditha. We analyzed a interferometric digital terrain model of the recent emerged platform of the Lisan peninsula and interpreted radar differential interferograms contemporary with gravity measurements for the peninsula. We discuss the possibilities to detect, assess and monitor areas prone to collapse on the Jordanian side of the southern Dead Sea coast.

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Section: Lozenge-shape Feature Outlined From Aerial Photographsmentioning

confidence: 99%

Subsidence and Sinkhole Hazard Assessment in the Southern Dead Sea Area, Jordan

Closson

Karaki

Klinger

et al. 2005

Pure appl. geophys.

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“…InSAR has been proven to be a powerful tool for monitoring these sinkhole precursors and post-event deformation in the Dead Sea, Israel [8][9][10][11], Bayou Corne, Louisiana, USA [12], New Mexico [13], and Ebro Valley, Spain [14,15]. Ground subsidence around the sinkholes in Wink, Texas, was measured using a single InSAR image, along with field gravity observations by Paine et al [16].…”

Section: Methodsmentioning

confidence: 99%

Ongoing Deformation of Sinkholes in Wink, Texas, Observed by Time-Series Sentinel-1A SAR Interferometry (Preliminary Results)

2016

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Spatiotemporal deformation of existing sinkholes and the surrounding region in Wink, TX are probed using time-series interferometric synthetic aperture radar (InSAR) methods with radar images acquired from the Sentinel-1A satellite launched in April 2014. The two-dimensional deformation maps, calculated using InSAR observations from ascending and descending tracks, reveal that much of the observed deformation is vertical. Our results indicate that the sinkholes are still influenced by ground depression, implying that the sinkholes continue to expand. Particularly, a region 1 km northeast of sinkhole #2 is sinking at a rate of up to 13 cm/year, and its aerial extent has been enlarged in the past eight years when compared with a previous survey. Furthermore, there is a high correlation between groundwater level and surficial subsidence during the summer months, representing the complicated characteristics of sinkhole deformation under the influence of successive roof failures in underlying cavities. We also modeled the sinkhole deformation in a homogenous elastic half-space with two dislocation sources, and the ground depression above cavities could be numerically analyzed. Measurements of ongoing deformation in sinkholes and assessments of the stability of the land surface at sinkhole-prone locations in near real-time, are essential for mitigating the threat posed to people and property by the materialization of sinkholes.

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“…In the last decades it has proved to be a powerful tool to detect and monitor active processes such as rock dissolution-and human-induced subsidence [4][5][6][7][8], slow-moving slope instabilities [9,10], or volcano inflation and/or destabilization [11], among others. These slow movements not only can generate damages on buildings or infrastructures [6,12], but also may be precursors of volcanic eruptions [13] or other hazardous fast-moving phenomena such as ground sudden collapses [14,15] or landslides [16,17].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the SBAS InSAR Service of the European Space Agency’s Geohazard Exploitation Platform (GEP)

et al. 2017

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Abstract:The analysis of remote sensing data to assess geohazards is being improved by web-based platforms and collaborative projects, such as the Geohazard Exploitation Platform (GEP) of the European Space Agency (ESA). This paper presents the evaluation of a surface velocity map that is generated by this platform. The map was produced through an unsupervised Multi-temporal InSAR (MTI) analysis applying the Parallel-SBAS (P-SBAS) algorithm to 25 ENVISAT satellite images from the South of Spain that were acquired between 2003 and 2008. This analysis was carried out using a service implemented in the GEP called "SBAS InSAR". Thanks to the map that was generated by the SBAS InSAR service, we identified processes not documented so far; provided new monitoring data in places affected by known ground instabilities; defined the area affected by these instabilities; and, studied a case where GEP could have been able to help in the forecast of a slope movement reactivation. This amply demonstrates the reliability and usefulness of the GEP, and shows how web-based platforms may enhance the capacity to identify, monitor, and assess hazards that are associated to geological processes.

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Space-borne radar interferometric mapping of precursory deformations of a dyke collapse, Dead Sea area, Jordan

Cited by 41 publications

References 5 publications

Subsidence and Sinkhole Hazard Assessment in the Southern Dead Sea Area, Jordan

Subsidence and Sinkhole Hazard Assessment in the Southern Dead Sea Area, Jordan

Ongoing Deformation of Sinkholes in Wink, Texas, Observed by Time-Series Sentinel-1A SAR Interferometry (Preliminary Results)

Evaluation of the SBAS InSAR Service of the European Space Agency’s Geohazard Exploitation Platform (GEP)

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