Phosphate mine subsidences deduced from differential interferometry (DInSAR): The Moulares case example (southern Atlas of Tunisia)

Hassen, Mehdi Ben; Rebai, Noamen; Deffontaines, Benoı̂t; Turki, Mohamed Moncef; Chaabani, Fredj

doi:10.1016/j.crte.2011.09.005

Cited by 5 publications

(2 citation statements)

References 40 publications

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“…Consequently, this technique is increasingly preferred by researchers. Initially, the technique was mainly applied to three-dimensional (3D) surface reconstruction, mapping, and surface-change detection; later it was broadened to differential InSAR (DInSAR) for motion-based studies of seismic deformation, volcanic motion, glacial drift, urban deformation, landslides, and mining-induced deformation [8][9][10][11][12][13]. So far, several studies utilizing DInSAR in the monitoring of illegal mining have been conducted.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Feasibility of Illegal Open-Pit Mining Identification Using Insar Coherence

Wang

Chen

et al. 2020

Remote Sensing

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Illegal open-pit mining causes environmental harm and undermines sustainable development. Conventional monitoring approaches such as field research and unmanned aerial vehicle (UAV) imagery are time-consuming and labor-intensive, making large-scale monitoring difficult. In comparison, optical remote sensing imagery can cover large areas but is vulnerable to adverse weather conditions and is not sensitive to vertical ground changes. As open-pit excavation causes sudden changes in the scattering properties of ground objects along with dramatic vertical deformation, we evaluated the feasibility of using interferometric synthetic aperture radar (InSAR) coherence to identify illegal mining activities. Our method extracts the coherence coefficient from two SAR images taken on different dates, applies thresholding and filtering to extract a decorrelation map, and then overlays this with legal mining boundaries and optical satellite images to identify illegal mining activities. For three test cases in southwestern Inner Mongolia, China, 49 legal mining sites were correctly detected (with an accuracy of 90.74%) as well as six illegal mining sites. Ground truthing confirmed the presence of ongoing activity at one of these sites. Our study shows that InSAR coherence is suitable for the identification of mining activities, and our method provides a new approach for the detection and monitoring of illegal open-pit mining.

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Section: Introductionmentioning

confidence: 99%

Evaluating the Feasibility of Illegal Open-Pit Mining Identification Using Insar Coherence

Wang

Chen

et al. 2020

Remote Sensing

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“…Synthetic Aperture Radar (SAR) is also widely used in subsidence monitoring. For instance, Ben et al (2011) deduced phosphate mine subsidence in southern Atlas of Tunisia through differential SAR image data. Perski (2000) used differential interferometric SAR (D-InSAR) to monitor mining subsidence in the Upper Silesia mines.…”

Section: Introductionmentioning

confidence: 99%

A new 3D laser-scanning and GPS combined measurement system

Cao

et al. 2019

Comptes Rendus. Géoscience

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Terrestrial laser scanning (TLS) is widely used because of its ability to quickly acquire highdensity and high-precision 3D image and topographic data. However, it can only acquire independent coordinate system points, which restricts its application in large-scale deformation monitoring. In this study, we constructed a measurement system to acquire global coordinate point cloud data by combining TLS and GPS (Global Positioning System). The coordinate values of retro-reflective targets could be acquired in different coordinate systems, the GPS coordinate and the TLS station coordinate, synchronously. Our experiments showed that, after registration with the homonymy points acquired by 30-min short-baseline differential GPS using the ICP algorithm, the positional accuracy of the TLS retro-reflective target center in the global coordinate was better than 10 mm. This high precision meets, for instance, the requirements of coal mining subsidence monitoring. We used our new combined measurement system to acquire and process the point cloud data of a frame structure. The measurements demonstrated the practicability and robustness of the new measurement system.

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Structural and geomorphological controls of the present-day landslide in the Moulares phosphate mines (western-central Tunisia)

Dhahri

Benassi

Mhamdi

et al. 2015

Bull Eng Geol Environ

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Phosphate mine subsidences deduced from differential interferometry (DInSAR): The Moulares case example (southern Atlas of Tunisia)

Cited by 5 publications

References 40 publications

Evaluating the Feasibility of Illegal Open-Pit Mining Identification Using Insar Coherence

Evaluating the Feasibility of Illegal Open-Pit Mining Identification Using Insar Coherence

A new 3D laser-scanning and GPS combined measurement system

Structural and geomorphological controls of the present-day landslide in the Moulares phosphate mines (western-central Tunisia)

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