PSInSAR and GNSS derived deformation study in the west part of Narmada Son Lineament (NSL), western India

Dumka, Rakesh K.; SuriBabu, D.; Narain, Pratishtha; Kothyari, Girish Ch; Taloor, Ajay Kumar; Prajapati, Sandip

doi:10.1016/j.qsa.2021.100035

Cited by 21 publications

(8 citation statements)

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“…Furthermore, the results of (Dumka et al, 2019; Gahalaut et al, 2019) were jointly analysed with the results of present study. The methodology of GPS data processing in the present study is similar to the studies (Banerjee et al, 2008; Dumka et al, 2019; Dumka, Kotlia, Kothyari, et al, 2018; Dumka, Suribabu, Kotlia, et al, 2022; Dumka, Suribabu, Narain, et al, 2022; Jade et al, 2014, 2017; John et al, 2021; Kannaujiya et al, 2021; Saji et al, 2020; Yadav et al, 2021) for the Indian Plate.…”

Section: Methodssupporting

confidence: 68%

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GPS and InSAR derived evidences of intra‐basin stress and strike‐slip tectonics in the vicinity of 2001 (M7.7) earthquake, Kachchh, western India

et al. 2022

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The current geodetic investigation is based on nearly a decade of continuous Global Positioning System (GPS) data towards the western part of the Indian Plate (2009–2019). This research focused on the Kachchh Rift Basin (KRB), the seismically most active intra‐plate region of the Indian Plate, which has seen three ≥ M 7.0 earthquakes in the last two centuries. The GPS stations on the northern and southern margins show SSW and NNE directed motion, indicating that the KRB is currently under the influence of regional compressive stress on both flanks and the same is reflected in the form of earthquake activity in the center portion. Furthermore, the existence of intra‐basin stress, in addition to regional stress, increases strain accumulation and results in the creation of a Principal Deformation Zone (PDZ) in the central part of the KRB. The average annual deformation in the middle of KRB remains 1.0 ± 0.5 mm/year, while sites near the South Wagad Fault (SWF) experience 1.2 mm/year of fault parallel motion. The dominant fault normal motion along the flanks with a maximum fault parallel motion in the middle intimates the existence of strike‐slip tectonics in the central Kachchh. The geometric relationship of strike‐slip faults in a compressive margin and strain accumulation in pre‐existing faults (PDZ) is responsible for current strike‐slip and thrust motion in the Kachchh, including the 2001 Bhuj earthquake (M 7.7). Our geodetic model is well‐corroborated with the geological observations of the wrench fault model of strike‐slip faults. PS‐InSAR results in the northern part of the region between Khadir and Bela Islands show ≤6.0 mm of annual LOS displacement. GPS results indicate ≈ 1.3 to 1.4 ± 0.5 mm/year of fault parallel motion along the transverse Ekal Amrapar Fault (EAF). The non‐significant variation in GRACE‐derived TWS values (from 2009 to 2018) rules out non‐tectonic deformation in the vicinity of EAF and thus points to tectonic activity as the cause of the derived deformation in the region.

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Section: Methodssupporting

confidence: 68%

“…The methodology of GPS data processing in the present study is similar to the studies (Banerjee et al, 2008; Dumka, Suribabu, Narain, et al, 2022;Jade et al, 2014Jade et al, , 2017John et al, 2021;Kannaujiya et al, 2021;Saji et al, 2020;Yadav et al, 2021) for the Indian Plate.…”

Section: Gnss Observationssupporting

confidence: 56%

GPS and InSAR derived evidences of intra‐basin stress and strike‐slip tectonics in the vicinity of 2001 (M7.7) earthquake, Kachchh, western India

et al. 2022

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“…Os autores identificaram mais de 100 deslizamentos e foram capazes de caracterizá-los conforme o seu padrão espacial, a sua taxa de deslocamento, o seu estado de atividade e, também, a sua orientação dentro de uma área de aproximadamente de 4000 km². Dumka et al (2021) empregaram a técnica PSInSAR™ em um conjunto de dados Sentinel-1A (2016-2019) sobre a região oeste da cidade de Narmada-Índia, sendo os resultados obtidos nesse processamento foram comparados com a série temporal gerada por observações GNSS (2009GNSS ( -2019. O processamento PSInSAR™ foi efetivado no programa SARPROZ e os dados GNSS no programa GAMIT-GLOBK/GLORG − mais detalhes desse programa podem ser encontrados em Herring et al (2018).…”

Section: Aplicações Internacionalmenteunclassified

Técnica PSInSAR na Avaliação de Deslocamentos: Análise Conceitual, Aplicações e Perspectivas

Alves

Krueger²,

Dalazoana³

2023

Rev. Bras. Cartogr.

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Persistent Scatterer Interferometric Synthetic Aperture Radar (PSInSAR™) é uma técnica de sensoriamento remoto que usa como base a técnica Differential InSAR (DInSAR), porém, emprega uma série de interferogramas diferenciais advindas de uma pilha de imagens Single Look Complex - Synthetic Aperture Radar (SLC-SAR) devidamente corregistradas e adquiridas em um intervalo de tempo sobre uma mesma área para, de tal modo, selecionar pixels que apresentam um índice de dispersão da amplitude dentro de um limiar estabelecido e, assim, gerar uma série histórica de deslocamento da superfície. A PSInSAR™ usa pixels que contenham dispersores persistentes que são caracterizados por obras de engenharia como pontes, taludes, telhados, casas, prédios, e algumas feições naturais como rochas. Por meio da análise da fase desses pixels, a PSInSAR™ consegue superar algumas dificuldades encontradas com a DInSAR, tais como, problemas correlacionados com a falta de correlação atmosférica, temporal e espacial. Desde a sua idealização no início dos anos de 2000 e devido a sua capacidade de mapear deslocamentos superficiais a uma acurácia milimétrica, a PSInSAR™ vem sendo amplamente usada em estudos sobre subsidências, deslizamentos, monitoramento de barragens, monitoramento de minas e de estruturas de engenharia no modo geral. Nesse sentido, o presente artigo descreve o princípio básico de funcionamento da técnica, investiga a sua aplicabilidade no âmbito nacional e internacional e apresenta os pacotes de processamento existentes no mercado assim como o acesso de dados interferométricos que possibilitam à utilização da PSInSAR™.

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“…PSInSAR is a widely used geodetic method that has been applied in recent years. The PSInSAR method has been widely used in deformation-observing scientific research focusing on tectonic movements (Arıkan et al 2010;Poyraz and Hastaoğlu 2020;Dumka et al 2020;Dumka et al 2021;Suribabu et al 2022a;Suribabu et al 2022b;Dumka et al 2023), in the determination of earthquake-induced surface movements (Yen et al 2011;Suárez et al, 2018;Famiglietti, 2022), landslide monitoring (Peyret et al 2008;Hastaoğlu et al 2014), volcanic (Hooper et al 2004(Hooper et al , 2007Gündüz et al 2023), geological and urban areas (Meisina et al 2006;Rodríguez et al, 2012;Gezgin 2022;Dumka et al 2022), and subsidence in mining areas (Abdikan et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Investigation of Salanda Fault Zone, between Yesiloz and Gumuskent (Nevsehir-Turkey) with PSInSAR

Demircioğlu,

Oktar

2024

Geofis Int

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In this study, the section of the Salanda fault zone between Yesiloz village and Gumuskent (Nevsehir, Turkey) was investigated by geodetic methods, and the amount of movement in this area was determined. We used a Persistent Scatterer Interferometric Synthetic Aperture Radar (PSInSAR) to determine the line of sight (LOS) movement. Previous studies using geological and geomorphological indices have shown that the Salanda fault zone is active. For the first time in this study, 36 synthetic aperture radar (SAR) images acquired between January 8, 2020, and November 29, 2022, were used in PSInSAR analysis. When the annual velocity values of the stud area in the LOS direction were analysed, annual subsidence values of up to 7.6 mm and annual uplift values of up to 7.2 mm were revealed. These movements indicate that the Salanda fault is active and normal fault characteristics. However, it also has a dextral strike-slip component.

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PSInSAR and GNSS derived deformation study in the west part of Narmada Son Lineament (NSL), western India

Cited by 21 publications

References 58 publications

GPS and InSAR derived evidences of intra‐basin stress and strike‐slip tectonics in the vicinity of 2001 (M7.7) earthquake, Kachchh, western India

GPS and InSAR derived evidences of intra‐basin stress and strike‐slip tectonics in the vicinity of 2001 (M7.7) earthquake, Kachchh, western India

Técnica PSInSAR na Avaliação de Deslocamentos: Análise Conceitual, Aplicações e Perspectivas

Investigation of Salanda Fault Zone, between Yesiloz and Gumuskent (Nevsehir-Turkey) with PSInSAR

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