Study of land subsidence by radar interferometry and hot spot analysis techniques in the Peshawar Basin, Pakistan

Khan, Shuhab D.; Faiz, Muhammad I.; Gadea, Otto; Ahmad, Laeiq

doi:10.1016/j.ejrs.2023.02.001

Cited by 5 publications

(2 citation statements)

References 31 publications

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“…Deformation Monitoring using long-term SAR data at Bologna, Italy as shown in figure 3 can be accessed through the European Ground Motion Service website. Long-term trend analysis at Pakistan's Tarbela Dam has utilized InSAR to assess the effects of reservoir water level changes and ground movements on dam integrity, informing maintenance and risk mitigation strategies [11]. The Kariba Dam plays a crucial part in hydropower and water resource management in Africa, which is supported by InSAR monitoring [12] and helps to detect ground deformation.…”

Section: 4mentioning

confidence: 99%

Slope Stability Monitoring of Hydroelectric Dam and Upstream Watershed Areas Utilizing Satellite Interferometric Synthetic Aperture Radar (InSAR)

Dwitya,

Hendrianto Pratomo,

Agung Cahyadi

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Dams offer significant benefits such as power generation, flood control, irrigation, and tourism. However, when mismanaged, they pose a high risk of catastrophic failure, potentially releasing large volumes of water rapidly, resulting in severe downstream damage, environmental impacts, injuries, and loss of lives. Effective dam monitoring is essential to evaluate slope stability, detect slope behaviour changes, and deliver early warning for potential hazards. Upon detecting any deformations in the dam or its watershed areas, prompt interventions can be initiated. Interferometric Synthetic Aperture Radar (InSAR) is the measurement technique of signal phase change between two images at the same location and at different times, it will be a proficient method for monitoring ground or slope changes across vast areas without the installation of on-site instrumentation. The dataset used in this work consists of 392 images of Sentinel-1 from 1 September 2018 to 11 August 2023 to conduct long-term InSAR data analysis. Monitoring the dam and its watershed is crucial, given that over 30% of U.S. dam failures result from overtopping. Slope failure events at the upstream area can cause abrupt water level rises, further increasing the risk of overtopping and major instability. This study explores slope deformation around dams and their watersheds using satellite long-term InSAR technology using a study case from one of the dams in Indonesia. The outcomes will provide insights into dam safety and shed light on the strengths and constraints of the InSAR technology.

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Section: 4mentioning

confidence: 99%

Slope Stability Monitoring of Hydroelectric Dam and Upstream Watershed Areas Utilizing Satellite Interferometric Synthetic Aperture Radar (InSAR)

Dwitya,

Hendrianto Pratomo,

Agung Cahyadi

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…SBAS processing can be used to obtain displacement time series, and it has been applied to monitor the deformation trends of geologic hazards such as earthquakes (Liu et al 2021;Jafari et al 2023), volcanoes (Doke et al 2021;Festa et al 2022), and landslides (Luo et al 2020;Khan et al 2023). The basic principle is to consider the deformation value as the product of the deformation rate and the time span (Berardino et al 2002;Lanari et al 2004).…”

Section: Sbas Processingmentioning

confidence: 99%

A method for correcting InSAR interferogram errors using GNSS data and the K-means algorithm

Yan,

Dai,

et al. 2024

Earth Planets Space

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Correcting interferometric synthetic aperture radar (InSAR) interferograms using Global Navigation Satellite System (GNSS) data can effectively improve their accuracy. However, most of the existing correction methods utilize the difference between GNSS and InSAR data for surface fitting; these methods can effectively correct overall long-wavelength errors, but they are insufficient for multiple medium-wavelength errors in localized areas. Based on this, we propose a method for correcting InSAR interferograms using GNSS data and the K-means spatial clustering algorithm, which is capable of obtaining correction information with high accuracy, thus improving the overall and localized area error correction effects and contributing to obtaining high-precision InSAR deformation time series. In an application involving the Central Valley of Southern California (CVSC), the experimental results show that the proposed correction method can effectively compensate for the deficiency of surface fitting in capturing error details and suppress the effect of low-quality interferograms. At the nine GNSS validation sites that are not included in the modeling process, the errors in the ascending track 137A and descending track 144D are mostly less than 15 mm, and the average root mean square error values are 11.8 mm and 8.0 mm, respectively. Overall, the correction method not only realizes effective interferogram error correction, but also has the advantages of high accuracy, high efficiency, ease of promotion, and can effectively address large-scale and high-precision deformation monitoring scenarios. Graphical Abstract

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Active faulting and seismicity, Northwest Pakistan: a case study of Peshawar Basin Pakistan

Faiz,

Ahmed,

Khan

et al. 2024

Environ Earth Sci

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Study of land subsidence by radar interferometry and hot spot analysis techniques in the Peshawar Basin, Pakistan

Cited by 5 publications

References 31 publications

Slope Stability Monitoring of Hydroelectric Dam and Upstream Watershed Areas Utilizing Satellite Interferometric Synthetic Aperture Radar (InSAR)

Slope Stability Monitoring of Hydroelectric Dam and Upstream Watershed Areas Utilizing Satellite Interferometric Synthetic Aperture Radar (InSAR)

A method for correcting InSAR interferogram errors using GNSS data and the K-means algorithm

Active faulting and seismicity, Northwest Pakistan: a case study of Peshawar Basin Pakistan

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