Improving radar interferometry for monitoring fault-related surface deformation

Cuenca, Miguel Caro

doi:10.54419/cydknk

Cited by 9 publications

(5 citation statements)

References 75 publications

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“…However, Camelbeeck et al (2007) and Grützner et al (2016) argue that the lack of historic surface ruptures can also be explained by a low re-occurrence interval, and insufficient magnitudes and large focal depths of the historic earthquakes, in combination with the relatively short period of historic observations. Furthermore, the observed present-day geodetic motions around faults can also be induced by differential man-induced groundwater level changes (Vanneste and Verbeeck, 2001;Camelbeeck et al, 2007;Caro Cuenca, 2012), and thus unrelated to active creeping fault displacement. On the other hand, there is evidence for seismogenic surface rupturing in trench studies in the RVRS, in the form of colluvial wedges, liquefactions, linear extensional fissures and mass wasting.…”

Section: Creep Versus Surface Rupturementioning

confidence: 97%

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A Late Glacial surface rupturing earthquake at the Peel Boundary fault zone, Roer Valley Rift System, the Netherlands

Balen

Bakker²,

Kasse

et al. 2019

Quaternary Science Reviews

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Section: Creep Versus Surface Rupturementioning

confidence: 97%

“…In addition, Demoulin (2006) found evidence for slow movements along the FFZ (trenched by Houtgast et al, 2003Houtgast et al, , 2005 by analyzing geodetic data. However, these displacements can also be explained as vertical movements caused by mining-induced subsidence (Caro Cuenca, 2012).…”

Section: Creep Versus Surface Rupturementioning

confidence: 99%

A Late Glacial surface rupturing earthquake at the Peel Boundary fault zone, Roer Valley Rift System, the Netherlands

Balen

Bakker²,

Kasse

et al. 2019

Quaternary Science Reviews

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“…The cumulative deformation and cumulative deformation phases are along the line of sight (LOS) with respect to the first reference scene t 0 , assuming that dðt 0 ; x; rÞ and ϕðt 0 ; x; rÞ are zero. 15,42 Let ϕ T ¼ ½ϕðt 1 Þ; : : : ; ϕðt N Þ be the vector of the N unknown LOS cumulative deformation phase values with respect to t 0 , δϕ T ¼ ½δϕ 1 ; : : : ; δϕ M be the vector of the M known deformation phase values derived from the unwrapped multitemporal differential interferogram series, and I T M ¼ ½I M 1 ; : : : ; I M M and I T S ¼ ½I S 1 ; : : : ; I S M correspond to the acquisition time index of the master and slave images, respectively.…”

Section: Sbas Insar Techniquementioning

confidence: 99%

Monitoring of land subsidence by combining small baseline subset interferometric synthetic aperture radar and generic atmospheric correction online service in Qingdao City, China

Li,

Tao,

Chen

et al. 2024

J. Appl. Rem. Sens.

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Owing to accelerated urbanization, land subsidence has damaged urban infrastructure and impeded sustainable economic and social development in Qingdao City, China. Combining interferometric synthetic aperture radar (InSAR) and generic atmospheric correction online service (GACOS), atmospheric correction has not yet been investigated for land subsidence in Qingdao. A small baseline subset of InSAR (SBAS InSAR), GACOS, and 28 Sentinel-1A images were combined to produce a land subsidence time series from January 2019 to December 2020 for the urban areas of Qingdao, and the spatiotemporal evolution of land subsidence before and after GACOS atmospheric correction was compared, analyzed, and verified using leveling data. Our work demonstrates that the overall surface condition of the Qingdao urban area is stable, and subsidence areas are mainly concentrated in the coastal area of Jiaozhou Bay, northwestern Jimo District, and northern Chengyang District. The GACOS atmospheric correction could reduce the root-mean-square error of the differential interferometric phase. The land subsidence time series after correction was in better agreement with the leveling-monitored results. It is effective to perform GACOS atmospheric correction to improve the accuracy of SBAS InSARmonitored land subsidence over a large scale and long time series in coastal cities.

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“…The SAR phase difference data, which is then called displacement data, will produce vertical LOS (line of sight) data that is still not perpendicular to the earth surface. Thus, it needs to be corrected to be true vertical, so that it is actual (Cuenca, 2013) with the Formula 2 below: where the angle Ɵ is the incidence angle of the 1A SLC IW sentinel image. Due to the incidence angle of the picture observation by satellite, the displacement must be adjusted, so that it is perpendicular to the ellipsoid.…”

Section: J O Gmentioning

confidence: 99%

The Movement of Cimandiri Fault, Sukabumi, West Java: A Vertical Deformation Analysis Using DInSAR-True Vertical Displacement Method

Stevany,

Manessa

2024

Indonesian J. Geosci.

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If deformation is caused by earthquakes, it is necessary to map the area size and shape. Especially in Indonesia, which is situated within three main tectonic plates, the examination of risks and hazards is vital to establish the right measures for mitigating and minimizing the risk of earthquakes. Remote sensing is one of the best and most renewable methods for mapping deformation occurrences. DInSAR is a remote sensing technique that can be used to analyze deformation. This work employed the DInSAR technique to examine the Sentinel-1 A SLC-IW satellite and to investigate the deformation of the Cimandiri Fault in Palabuhanratu region, Sukabumi. Within one of these active faults, a magnitude of 4 Richter scale earthquake occurred on September 20th, 2022. Comparing satellite photos before and after the earthquake with the DInSAR yielded a large phase difference value centred on the Cimandiri Fault line with a phase range of -3,092 to 3,031. It indicates that the Cimandiri Fault is the earthquake epicentre on September 20th, 2022, in Palabuhanratu. The results of an investigation of the displacement value happening along the line of sight (LOS) fall between 0.105 and 0.672 m. Due to the incidence angle of the picture observation by satellite, the displacement must be adjusted since it is perpendicular to the ellipsoid referred to as the true vertical displacement. The fixed displacement finding of 0.126 to 0.806 m suggests that the region surrounding the Cimandiri Fault has risen. As GCP points, a number of GPS geodetic data points were incorporated from the field near the Bagbagan bridge, which was the site of the active fault. The outcomes demonstrated that the DInSAR true vertical displacement method can be used to determine the surface deformation.

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Improving radar interferometry for monitoring fault-related surface deformation

Abstract: The NCG, Nederlandse Commissie voor Geodesie, Netherlands Geodetic Commission is part of the Royal Netherlands Academy of Arts and Sciences (KNAW). To my wife Indira, and my daughters Lucía and SoniaIn memory of my grandparents Contents

Cited by 9 publications

References 75 publications

A Late Glacial surface rupturing earthquake at the Peel Boundary fault zone, Roer Valley Rift System, the Netherlands

A Late Glacial surface rupturing earthquake at the Peel Boundary fault zone, Roer Valley Rift System, the Netherlands

Monitoring of land subsidence by combining small baseline subset interferometric synthetic aperture radar and generic atmospheric correction online service in Qingdao City, China

The Movement of Cimandiri Fault, Sukabumi, West Java: A Vertical Deformation Analysis Using DInSAR-True Vertical Displacement Method

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