An analysis of terrain properties and the location of surface scatterers from persistent scatterer interferometry

Riddick, S. N.; Schmidt, D. A.; Deligne, Natalia I.

doi:10.1016/j.isprsjprs.2012.05.010

Cited by 17 publications

(6 citation statements)

References 17 publications

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“…However, where sea cliffs are covered by vegetation, the manipulation of point clouds becomes more complex. It has largely been proven that vegetation cover on topographic surfaces surveyed using RS techniques often results in incoherent, and inaccurate representations of the actual slope morphology [60][61][62]. The Funding: This research was carried out in the frame of the Project "Landslide Susceptibility Analysis of Rocky Coasts in the North Adriatic Sea (Italy, Slovenia, Croatia)" supported by the University of Trieste, Italy, and the University of Udine, Italy.…”

Section: Joint Setmentioning

confidence: 99%

Integrated Geomechanical and Digital Photogrammetric Survey in the Study of Slope Instability Processes of a Flysch Sea Cliff (Debeli Rtič Promontory, Slovenia)

Furlani

Bolla

Hastewell

et al. 2022

Land

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This work presents an integrated study approach that combines the results of a geomechanical survey with data obtained using digital photogrammetry (DP), to assess slope instability processes affecting a sea cliff at the Debeli Rtič promontory (Slovenia). The investigated cliff is 4–18 m-high and is made up of an alternation of sandstones and marlstones belonging to the Flysch Formation of Trieste, which is Eocene in age. The studied cliff was subjected to localized slope failures that occurred in the past and is currently subject to frequent rock collapses, thus resulting in its partial and episodic retreat. Field evidence acquired through a traditional survey was integrated with outputs of the DP technique based on 1399 images that were collected using both a commercial unmanned aerial vehicle (UAV) and a mobile phone (MP). UAV-derived images were useful for performing rock mass structure analysis in the upper part of the investigated cliff, where the traditional survey was not possible due to hazardous operating conditions. In addition, the use of a MP was observed to be a useful tool for the rapid collection of images at the toe of unsafe marine cliff environments. This study highlights that UAV-DP and MP-DP techniques can only be effective if the outcomes obtained from the 3D model reconstruction are validated by direct measurements acquired by means of the traditional field survey, thus avoiding improper or even erroneous results while enlarging the amount of data and the area of investigation. The study approach presented herein allowed for the assessment of slope instabilities affecting the Flysch Sea cliff, whose retreat is caused by the combined action of marine erosion and slope gravitational processes.

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Section: Joint Setmentioning

confidence: 99%

Integrated Geomechanical and Digital Photogrammetric Survey in the Study of Slope Instability Processes of a Flysch Sea Cliff (Debeli Rtič Promontory, Slovenia)

Furlani

Bolla

Hastewell

et al. 2022

Land

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“…To overcome these limitations, researchers have developed time series analysis, namely multi-temporal InSAR techniques, e.g., [28][29][30]. Permanent scatterer interferometry (PSI), which is one of these techniques and was first proposed by [28], defines scatterers as exhibiting stable scattering behavior over time; however, this technique is limited in nonurban areas because of the low PS density [31,32]. Unlike other PSI techniques, the Stanford method for persistent scatterers (StaMPS) can be used for all terrains because it uses the spatial correlation of the interferometric phase to detect surface deformations occurring in non-urban areas and does not require a temporal deformation model describing how the deformation changes over time [31,33].…”

Section: Introductionmentioning

confidence: 99%

An Investigation of Volcanic Ground Deformation Using InSAR Observations at Tendürek Volcano (Turkey)

2023

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Although approximately one-tenth of the world’s population lives near volcanoes, most of the 1500 active volcanoes are not monitored by ground-based instruments because of the cost and difficulty of access. Since the development of interferometric synthetic aperture radar (InSAR) in the 1990s, recent advances have allowed the near-real-time detection of surface deformations, one of the earliest markers of volcanic activity. According to the Global Volcanism Program, Turkey’s most recent eruption (involving gas and ash) occurred in the Tendürek volcano in 1885. An explosion in the Tendürek volcano, which continues to actively output gas and steam, would be a critical issue for the life and property of the people living nearby. In this context, we processed the Sentinel-1 data collected by the European Space Agency using the Stanford Method for Persistent Scatterers, and the surface deformations of the Tendürek volcano were investigated. In addition, we applied two different atmospheric correction approaches (linear phase-based tropospheric correction and the Generic Atmospheric Correction Online Service for InSAR) to reduce atmospheric effects and found that the linear phase-based tropospheric correction model produced lower standard deviation values. Subsequently, the mean deformation velocity maps, displacement time series, and deformation components in the line-of-sight direction were calculated. The results showed that the most severe subsidence was −11 mm/yr on the upper slopes of the Tendürek volcano. Although the lower slopes of the subsidence region have a lower settlement rate, the subsidence has a peak-caldera-centered location.

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“…This method focuses on measuring the level of deformation associated with each of the persistent scatterers, which is a point of high density within an interferogram from a single main image. Therefore, this technique was developed for urban areas, which have more stable scatterers than mountains or forests with distributed scatterers [25]. In recent years, many PSI approaches have been developed and applied in many cases, such as PS-InSAR [26][27][28], Stable Point Network (SPN) [29], Interferometric Point Target Analysis (IPTA) [30][31][32], and Stanford Method of Persistent Scatterers (StaMPS) [33,34].…”

Section: Introductionmentioning

confidence: 99%

Integration of InSAR Time-Series Data and GIS to Assess Land Subsidence along Subway Lines in the Seoul Metropolitan Area, South Korea

2020

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The aims of this research were to map and analyze the risk of land subsidence in the Seoul Metropolitan Area, South Korea using satellite interferometric synthetic aperture radar (InSAR) time-series data, and three ensemble machine-learning models, Bagging, LogitBoost, and Multiclass Classifier. Of the types of infrastructure present in the Seoul Metropolitan Area, subway lines may be vulnerable to land subsidence. In this study, we analyzed Persistent Scatterer InSAR time-series data using the Stanford Method for Persistent Scatterers (StaMPS) algorithm to generate a deformation time-series map. Subsidence occurred at four locations, with a deformation rate that ranged from 6–12 mm/year. Subsidence inventory maps were prepared using deformation time-series data from Sentinel-1. Additionally, 10 potential subsidence-related factors were selected and subjected to Geographic Information System analysis. The relationship between each factor and subsidence occurrence was analyzed by using the frequency ratio. Land subsidence susceptibility maps were generated using Bagging, Multiclass Classifier, and LogitBoost models, and map validation was carried out using the area under the curve (AUC) method. Of the three models, Bagging produced the largest AUC (0.883), with LogitBoost and Multiclass Classifier producing AUCs of 0.871 and 0.856, respectively.

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An analysis of terrain properties and the location of surface scatterers from persistent scatterer interferometry

Cited by 17 publications

References 17 publications

Integrated Geomechanical and Digital Photogrammetric Survey in the Study of Slope Instability Processes of a Flysch Sea Cliff (Debeli Rtič Promontory, Slovenia)

Integrated Geomechanical and Digital Photogrammetric Survey in the Study of Slope Instability Processes of a Flysch Sea Cliff (Debeli Rtič Promontory, Slovenia)

An Investigation of Volcanic Ground Deformation Using InSAR Observations at Tendürek Volcano (Turkey)

Integration of InSAR Time-Series Data and GIS to Assess Land Subsidence along Subway Lines in the Seoul Metropolitan Area, South Korea

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