A technical review on persistent scatterer interferometry

Jia, Haitao; Liu, Luyao

doi:10.1007/s40534-016-0108-4

Cited by 24 publications

(21 citation statements)

References 29 publications

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“…Many diverse mixed methods and solutions exist within each group. A broad overview of these methods can be found in [1,17,29,30].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, because of the ambiguous nature of the observation (the wrapped interferometric phases), one of the main disadvantages of TS-InSAR methods is their inability to detect "fast" deformations. If the differential deformation phase between two subsequent acquisitions exceeds an interval of −π to π, the real deformation rate cannot be entirely captured [29,30]. Ambiguity in the unwrapping procedure results in the limitation of the maximum differential deformation rate falling between two neighboring points.…”

Section: Introductionmentioning

confidence: 99%

“…Given that Sentinel-1A\B, the maximum deformation that can be captured using TS-InSAR is 1.4 cm every six days. This leads to a theoretical maximum deformation rate of 85 cm/year [29,30].…”

Section: Introductionmentioning

confidence: 99%

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Integration of DInSAR and SBAS Techniques to Determine Mining-Related Deformations Using Sentinel-1 Data: The Case Study of Rydułtowy Mine in Poland

2020

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Underground coal exploitation often results in land-surface subsidence, the rate of which depends on geological characteristics, the mechanical properties of the rocks, and the applied extraction technology. Since mining-related subsidence is characterized by “fast” displacement and high nonlinearity, monitoring this process by using Interferometric Synthetic Aperture Radar (InSAR) is very challenging. The Small BAseline Subset (SBAS) approach needs to predefine an a priori deformation model to properly estimate an interferometric component related to displacements. As a consequence, there is a lack of distributed scatterers (DS) when the selected a priori deformation model deviates from the real deformation. The conventional differential SAR interferometry (DInSAR) approach does not have this limitation, since it does not need any deformation model. However, the accuracy of this technique is limited by factors related to spatial and temporal decorrelation, signal delays due to the atmospheric artifacts, and orbital or topographic errors. Therefore, this study presents the integration of DInSAR and SBAS techniques in order to leverage the advantages and overcome the disadvantages of both methods and to retrieve the complete deformation pattern over the investigated study area. The obtained results were evaluated internally and externally with leveling data. Results indicated that the Kriging-based integration method of DInSAR and SBAS can be effectively applied to monitor mining-related subsidence. The root-mean-square Error (RMSE) between modeled and measured deformation by InSAR was found to be 11 and 13 mm for vertical and horizontal displacements, respectively. Moreover, DInSAR technique as a cost-effective and complementary method to conventional geodetic techniques can be applied for effective monitoring fast mining subsidence. The minimum and maximum RMSE between DInSAR displacement and specific leveling profiles were found to be 0.9 and 3.2 cm, respectively. Since the SBAS processing failed in subsidence estimation in the area of maximum deformation rate, the deformation estimates outside the maximum rate could only be compared. In these areas, the good agreement between SBAS and DInSAR indicates that the SBAS technique could be reliable for monitoring the residual subsidence that surrounds the subsidence trough. Using the proposed approach, we detected subsidence of up to −1 m and planar displacements (east–west) of up to 0.24 m.

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“…Many diverse mixed methods and solutions exist within each group. A broad overview of these methods can be found in [1,17,29,30].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Integration of DInSAR and SBAS Techniques to Determine Mining-Related Deformations Using Sentinel-1 Data: The Case Study of Rydułtowy Mine in Poland

2020

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“…In Siddique et al [20], the authors demonstrated that the SAR tomography method can add the improved value in deformation sampling in areas affected by layover. In addition, by the virtue of SAR tomography, the scatterer's elevation and intensity are considered in the analysis, solving a question posed by Jia and Liu [41].…”

Section: The Related Psi Techniques and Advancementsmentioning

confidence: 99%

Radar Interferometry: 20 Years of Development in Time Series Techniques and Future Perspectives

2020

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The research and improvement of methods to be used for deformation measurements from space is a challenge. From the previous 20 years, time series Synthetic Aperture Radar (SAR) interferometry techniques have proved for their ability to provide millimeter-scale deformation measurements over time. This paper aims to provide a review of such techniques developed in the last twenty years. We first recall the background of interferometric SAR (InSAR). We then provide an overview of the InSAR time series methods developed in the literature, describing their principles and advancements. Finally, we highlight challenges and future perspectives of the InSAR in the Big Data era.

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“…The PSI is a suitable technique to monitor dam deformation that allows to gather data on its subsidence [8,[12][13][14][15][16][17]. A detailed description of the DInSAR and PSI and their applications can be found in [7,[18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Application of DInSAR-PSI Technology for Deformation Monitoring of the Mosul Dam, Iraq

Othman¹,

Al-Maamar²,

Ali

et al. 2019

Remote Sensing

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On-going monitoring of deformation of dams is critical to assure their safe and efficient operation. Traditional monitoring methods, based on in-situ sensors measurements on the dam, have some limitations in spatial coverage, observation frequency, and cost. This paper describes the potential use of Synthetic Aperture Radar (SAR) scenes from Sentinel-1A for characterizing deformations at the Mosul Dam (MD) in NW Iraq. Seventy-eight Single Look Complex (SLC) scenes in ascending geometry from the Sentinel-1A scenes, acquired from 03 October 2014 to 27 June 2019, and 96 points within the MD structure, were selected to determine the deformation rate using persistent scatterer interferometry (PSI). Maximum deformation velocity was found to be about 7.4 mm·yr−1 at a longitudinal subsidence area extending over a length of 222 m along the dam axis. The mean subsidence velocity in this area is about 6.27 mm·yr−1 and lies in the center of MD. Subsidence rate shows an inverse relationship with the reservoir water level. It also shows a strong correlation with grouting episodes. Variations in the deformation rate within the same year are most probably due to increased hydrostatic stress which was caused by water storage in the dam that resulted in an increase in solubility of gypsum beds, creating voids and localized collapses underneath the dam. PSI information derived from Sentinel-1A proved to be a good tool for monitoring dam deformation with good accuracy, yielding results that can be used in engineering applications and also risk management.

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A technical review on persistent scatterer interferometry

Cited by 24 publications

References 29 publications

Integration of DInSAR and SBAS Techniques to Determine Mining-Related Deformations Using Sentinel-1 Data: The Case Study of Rydułtowy Mine in Poland

Integration of DInSAR and SBAS Techniques to Determine Mining-Related Deformations Using Sentinel-1 Data: The Case Study of Rydułtowy Mine in Poland

Radar Interferometry: 20 Years of Development in Time Series Techniques and Future Perspectives

Application of DInSAR-PSI Technology for Deformation Monitoring of the Mosul Dam, Iraq

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